|
INVESTIGATIONS
Stone |
RI min |
RI max |
Dens min |
Dens max |
Colour |
Location |
Info |
Spectrum |
UVS |
UVL |
Reference |
Grossular |
1.727 |
1.737 |
3.58 |
3.65 |
green to yellow-green |
Altay Mts, China |
|
|
|
|
Gems & Gemology 1993 winter,
p273-277 |
Grossular |
1.731 |
1.732 |
3.61 |
3.62 |
colourless |
|
|
|
weak to moderate golden-yellow |
weak to moderate golden-yellow |
Gems & Gemology 1979 summer p162-173 |
Tsavorite - grossular |
1.731 |
1.731 |
3.6 |
3.6 |
green |
Merelani, Tanzania |
|
none |
weak greenish yellow |
moderate orange |
Gems & Gemology 2004 spring, p72-73 |
Grossular |
1.731 |
1.754 |
3.57 |
3.67 |
colourless, green, orange |
|
105 stones |
|
|
|
Gems & Gemology 1982 Winter,
p204-213 |
hessonite - Grossular |
1.732 |
1.732 |
3.61 |
3.61 |
pale yellowish |
Sri Lanka |
2.85 ct |
|
|
|
Gemmologie, Zeitschrift der Deutschen
Gemmologischen Gesellschaft 2000 Mar, p1 |
Tsavorite - grossular |
1.732 |
1.742 |
3.5 |
3.64 |
green |
|
|
band 460nm and 610nm |
|
|
Revue de
Gemmologie A.F.G. 1989 Jul, N° 99, p5-7 |
Tsavorite - grossular |
1.732 |
1.732 |
3.74 |
3.74 |
light green |
Merelani, Tanzania |
|
|
yellow |
inert |
ACAM lab
2191 |
Grossular |
1.732 |
1.738 |
3.62 |
3.62 |
colourless |
Tanzania |
|
|
strong apricot |
weak apricot |
The Journal of Gemmology 1975 N°5,p225-229 |
hessonite - Grossular |
1.732 |
1.732 |
3.61 |
3.61 |
yellowish orange |
Elahera, Sri Lanka |
|
broad absorption below 410nm |
inert |
inert |
GIA Gem Database 33298 |
Grossular |
1.733 |
1.734 |
|
|
colourless |
Jeffrey Mine, Quebec, Canada |
|
|
|
|
The Journal of Gemmology 1982 Vol18, N°2, p1126-130 |
Grossular |
1.733 |
1.733 |
3.74 |
3.74 |
purplish red |
Umba Valley, Tanga Region, Tanzania |
9.22ct |
broad absorption below 410nm; lines at 430, 500, 525, 575nm |
inert |
inert |
GIA Gem Database 33278 |
hessonite - Grossular |
1.734 |
1.738 |
3.58 |
3.64 |
orange |
Elahera, Sri Lanka |
|
547, 490, 435nm |
inert |
inert |
Gems & Gemology 1986 Summer, p87 |
Grossular |
1.735 |
1.735 |
3.5 |
3.5 |
colourless |
|
|
|
medium orange |
strong yellow |
Gems & Gemology 1970 Winter, p253 |
Grossular |
1.735 |
1.735 |
3.61 |
3.61 |
yellowish green |
Lelatema Mts, Arusha Region, Tanzania |
14.54ct |
broad absorption below 420nm |
very weak orange |
weak orange-yellow |
GIA Gem Database 34991 |
Grossular |
1.735 |
1.735 |
3.61 |
3.61 |
mint green |
|
2.73ct, composition: Grs99Adr1 |
|
|
|
Gems & Gemology 2011 Winter, p274 |
Grossular |
1.736 |
1.738 |
3.58 |
3.6 |
yellow green |
Kabanga, Voi, Kenya |
|
|
moderate orange-yellow |
weak to moderate red to moderate orange |
Gems & Gemology 2009 spring p 65-66 |
Grossular |
1.736 |
1.736 |
|
|
pink |
Jeffrey Mine, Quebec, Canada |
|
|
|
|
The Journal of Gemmology 1982 Vol18, N°2, p1126-130 |
hessonite - Grossular |
1.736 |
1.741 |
|
|
orange |
Jeffrey Mine, Quebec, Canada |
|
|
|
|
The Journal of Gemmology 1982 Vol18, N°2, p1126-130 |
Grossular |
1.737 |
1.737 |
3.61 |
3.61 |
yellow |
Lelatema Mts, Arusha Region, Tanzania |
16.95ct |
broad absorption below 410nm |
inert |
inert |
GIA Gem Database 33239 |
hessonite - Grossular |
1.737 |
1.737 |
3.61 |
3.61 |
orangy yellow |
Sri Lanka |
12.36ct |
broad absorption below 410nm |
inert |
inert |
GIA Gem Database 33299 |
Tsavorite - grossular |
1.737 |
1.74 |
3.63 |
3.65 |
green |
Kalalani, Tanzania |
|
|
|
|
Gems & Gemology summer p116 |
Tsavorite - grossular |
1.737 |
1.737 |
3.58 |
3.58 |
slightly yellowish green |
Karo pit, Merelani Hills, Tanzania |
chelsea: no reaction |
broad absorption blocking out all of the violet and most of the blue,
weak band at 580-610 |
very weak dull chalky orange |
moderate dull chalky orange |
Gems & Gemology 1990 summer,
p142-148 |
Grossular |
1.737 |
1.74 |
3.56 |
3.59 |
red |
Sierra de la Cruces, Sierra Mojada,
Coahuila, Mexico |
translucent, cause of colour : Mn³+ |
|
|
|
Zeitschrift der Deutschen Gemmologischen
Gesellschaft 2012 61/1-2, p1-12 |
Grossular |
1.738 |
1.738 |
3.61 |
3.62 |
light slightly orangy yellow to light orange-yellow |
Lelatema Mts, 30km E of Merelani,
Tanzania |
3 stones |
weak line at 430nm |
weak to moderate yellowish orange |
weak reddish orange |
Gems & Gemology 2009 Winter, p299 |
Grossular |
1.738 |
1.742 |
|
|
green |
Jeffrey Mine, Quebec, Canada |
|
|
|
|
The Journal of Gemmology 1982 Vol18, N°2, p1126-130 |
hessonite - Grossular |
1.738 |
1.752 |
3.56 |
3.64 |
pale yellowish, orange to brown |
Ghatpara, Orissa, India |
|
|
|
|
The Journal of Gemmology 1994 24, 2, p 75-83 |
hessonite - Grossular |
1.738 |
1.738 |
3.61 |
3.61 |
orangy yellow |
Elahera, Central Province, Sri Lanka |
25.65ct |
broad absorption below 420nm |
inert |
inert |
GIA Gem Database 34842 |
Tsavorite - grossular |
1.738 |
1.738 |
3.61 |
3.61 |
yellowish green |
Komolo, Arusha Region, Tanzania |
3.65ct |
broad absorption below 440nm |
inert |
inert |
GIA Gem Database 35569 |
Grossular |
1.738 |
1.738 |
3.61 |
3.61 |
yellowish green |
Lelatema Mts, Tanzania |
11.04ct |
broad absorption below 410nm |
weak orange |
weak yellow |
GIA Gem Database 33242 |
Grossular |
1.739 |
1.739 |
3.61 |
3.61 |
yellow |
Lelatema Mts, Arusha Region, Tanzania |
6.57ct |
broad absorption below 425nm |
inert |
inert |
GIA Gem Database 33265 |
Grossular |
1.739 |
1.75 |
3.61 |
3.63 |
yellowish green |
Mali |
4.18, 5.32 and 6.37ct, compositions between Gros97Andr03 and Gros90Andr10 |
band at 435-445 nm |
inert |
inert to faint orange |
Gems & Gemology 1998 Fall, p221-222 |
hessonite - Grossular |
1.739 |
1.4 |
3.63 |
3.64 |
yellowish orange, orange, and red-orange |
Afghanistan |
2.64 - 7.39 ct, did not show the roiled or oily appearance |
Weak absorption bands at 430 and 490 |
inert |
inert |
Gems & Gemology 2004 Fall, p258 |
Grossular |
1.739 |
1.74 |
3.64 |
3.64 |
light yellow-green, bicoloured |
Kambanga, Kenya |
0.61 ct, 0.42ct |
|
very weak dark orange |
very weak dark red |
The Journal of Gemmology 2014 Vol 34, No 3, p195-197 |
Grossular |
1.739 |
1.741 |
3.57 |
3.62 |
near colourless |
Tanga Region, Tanzania |
|
|
inert |
inert |
The Journal of Gemmology 2019 36 (6), p 500-501 |
Grossular |
1.74 |
1.74 |
3.61 |
3.61 |
colourless |
|
|
|
|
|
ACAM labo |
hessonite - Grossular |
1.74 |
1.753 |
3.61 |
3.67 |
yellowish-orange, orange to orange-brown, reddish-brown |
Madagascar |
|
|
|
|
The Journal of Gemmology 2002 Vol28, N°4-236 |
Grossular |
1.74 |
1.742 |
3.58 |
3.62 |
greenish brown, brown-green, brownish, yellowish green, green |
Itrafo, Madagascar |
|
|
inert |
inert |
Gems & Gemology 2012 Fall, p178-187 |
hessonite - Grossular |
1.74 |
1.74 |
3.65 |
3.65 |
medium-dark brownish orange |
Madagascar |
1.86ct, cabochon |
absorption bands at 440 and 500 nm |
|
|
Gems & Gemology 1994 Sping, p51 |
Tsavorite - grossular |
1.74 |
1.742 |
3.63 |
3.66 |
|
Madagascar |
|
470 nm cutoff, band between 580 and 620 nm, and vague absorption between
620 and 700 nm |
inert |
inert |
Gems & Gemology 1999 Winter, p217 |
hessonite - Grossular |
1.74 |
1.74 |
3.68 |
3.68 |
red (dyed) |
|
spot RI, 2.68ct |
|
|
|
The Journal of Gemmology 2014 Vol 34, No 3, p204-205 |
hessonite - Grossular |
1.74 |
1.748 |
|
|
light to medium 'golden' brown |
Mogok, Myanmar |
8 stones 0.68-1.14ct |
|
|
|
The Journal of Gemmology 2018 36(3) p187 |
hessonite - Grossular |
1.74 |
1.749 |
3.61 |
3.64 |
yellowish orange to deep orangy red |
Somaliland |
5 stones 5.66-8.16ct, no roiled optical effect |
|
|
|
The Journal of Gemmology 2020 Vol 37 (2), p135 |
hessonite - Grossular |
1.741 |
1.741 |
3.62 |
3.62 |
brown |
|
|
|
|
|
ACAM labo |
hessonite - Grossular |
1.741 |
1.741 |
3.63 |
3.63 |
brownish yellow |
|
|
|
|
|
ACAM labo |
Tsavorite - grossular |
1.741 |
1.746 |
3.58 |
3.62 |
|
Bekily, Madagascar |
|
band 608nm and 428nm |
|
|
Gemmologie, Zeitschrift der Deutschen
Gemmologischen Gesellschaft 1999 Jul p111-113 |
Tsavorite - grossular |
1.741 |
1.741 |
3.61 |
3.61 |
green |
Scorpion Mine, Taita Hills, Coast Province, Kenya |
1.75ct |
broad absorption below 490nm |
inert |
inert |
GIA Gem Database 34358 |
hessonite - Grossular |
1.741 |
1.741 |
|
|
orange |
Somalia |
1.05ct |
faint band at 430nm |
|
|
The Journal of Gemmology 2014 Vol 34, N°4, p 293 |
hessonite - Grossular |
1.741 |
1.741 |
3.62 |
3.62 |
orangy yellow |
Lelatema Mts, Tanzania |
6.96ct |
broad absorption below 420nm |
inert |
inert |
GIA Gem Database 35007 |
Tsavorite - grossular |
1.742 |
1.742 |
3.62 |
3.62 |
green |
Gogogogo, Madagascar |
|
|
|
|
The Journal of Gemmology 1997 Vol 25, N°6, p391-393 |
hessonite - Grossular |
1.742 |
1.742 |
3.65 |
3.65 |
dark orangy red |
Hambantota, Sri Lanka |
14.18ct |
broad absorption below 450nm, lines at 480, 525nm |
weak orange |
weak yellow |
GIA Gem Database 33293 |
hessonite - Grossular |
1.742 |
1.742 |
3.64 |
3.64 |
red orange |
Hambantota, Sri Lanka |
23.86ct |
broad absorption below 475nm, line at 500nm |
inert |
inert |
GIA Gem Database 33281 |
hessonite - Grossular |
1.743 |
1.747 |
3.61 |
3.63 |
brownish reddish orange |
Kamburupitiya, Matara, Sri Lanka |
|
|
|
|
Gemmologie, Zeitschrift der Deutschen
Gemmologischen Gesellschaft 2008 57/1-2, p29-30 |
Tsavorite - grossular |
1.743 |
1.743 |
3.64 |
3.64 |
emerald green |
Swat Valley, Pakistan |
86% grossular, 13% goldmanite |
|
|
|
The Journal of Gemmology 1992 Vol23, N°2, p67-70 |
Grossular |
1.743 |
1.743 |
3.62 |
3.62 |
greenish yellow |
East Africa |
68.55ct |
|
|
|
Gems & Gemology 2005 Winter, p352 |
hessonite - Grossular |
1.743 |
1.747 |
3.63 |
3.65 |
yellowish orange to orange to reddish orange |
San Diego County, California |
1.31 - 6.26 ct |
|
|
|
Gems & Gemology 2007 Spring, p68-69 |
Grossular |
1.744 |
1.744 |
3.64 |
3.64 |
green |
Bekily, Madagascar |
0.63ct |
|
inert |
inert |
ACAM lab
2042 |
hessonite - Grossular |
1.745 |
1.748 |
3.6 |
3.68 |
brownish-yellow |
Tanzania |
|
bands with maxima at 461, 431 and 369 |
|
|
Gemmologie, Zeitschrift der Deutschen
Gemmologischen Gesellschaft 1997 Mar, p38-39 |
hessonite - Grossular |
1.748 |
1.748 |
3.65 |
3.65 |
orange |
Orissa, India |
2.19ct |
|
|
|
Gems & Gemology 1993 Summer, p133 |
hessonite - Grossular |
1.75 |
1.756 |
3.58 |
3.64 |
pale yellowish, orange to brown |
Dahikbala, Orissa, India |
|
|
|
|
The Journal of Gemmology 1994 24, 2, p 75-83 |
hessonite - Grossular |
1.751 |
1.751 |
3.637 |
3.637 |
orange |
|
1.5ct |
|
|
|
ACAM labo |
hessonite - Grossular |
1.751 |
1.758 |
3.6 |
3.63 |
pale yellowish, orange to brown |
Budhido, Orissa, India |
|
|
|
|
The Journal of Gemmology 1994 24, 2, p 75-83 |
hessonite - Grossular |
1.754 |
1.754 |
3.64 |
3.64 |
|
|
9.82ct, composition: Grs87Adr13 |
|
|
|
Gems & Gemology 2011 Winter, p274 |
hessonite - Grossular |
1.755 |
1.755 |
3.65 |
3.65 |
|
|
1.25ct |
|
|
|
Gems & Gemology 2011 Winter, p274 |
hessonite - Grossular |
1.755 |
1.755 |
3.65 |
3.65 |
|
|
9.10ct, composition: Grs86Adr14 |
|
|
|
Gems & Gemology 2011 Winter, p274 |
hessonite - Grossular |
1.759 |
1.763 |
3.6 |
3.66 |
pale yellowish, orange to brown |
Burubura, Orissa, India |
|
|
|
|
The Journal of Gemmology 1994 24, 2, p 75-83 |
Grossular |
1.768 |
1.768 |
3.78 |
3.78 |
greenish yellow |
Diakon, Kayes Region, Mali |
3.59ct |
broad absorption below 415nm, line at 438nm |
inert |
inert |
GIA Gem Database 33223 |
TABLES
Stone |
RI
min |
RI
max |
Dens
min |
Dens
max |
Reference |
Tsavorite - Grossular |
1.67 |
1.76 |
3.57 |
3.73 |
Gemology Tools Professional 2010 |
Grossular |
1.72 |
1.8 |
3.4 |
3.78 |
Gemme, Dati per l'identificazione, P. De
Stefano et al, 1993 |
Grossular |
1.72 |
1.75 |
3.6 |
3.68 |
Tabellen zur Edelstein-Bestimmung,
Pschichholz FGA, 1975 |
Grossular |
1.727 |
1.74 |
3.58 |
3.67 |
http://www.gemmology.be |
Grossular |
1.727 |
1.771 |
3.57 |
3.67 |
Gemmo.eu 2013 |
Grossular |
1.728 |
1.76 |
3.58 |
3.73 |
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
Grossular |
1.73 |
1.759 |
3.55 |
3.73 |
Gemmological Tables, Ulrich Henn,
2004 |
Grossular |
1.73 |
1.785 |
3.57 |
3.72 |
http://www.geminterest.com |
hessonite - Grossular |
1.73 |
1.757 |
3.57 |
3.73 |
Bestimmungstabellen für Edelsteine,
Birgit Günther, 1981 |
hessonite - Grossular |
1.73 |
1.757 |
3.6 |
3.75 |
Gemme, Dati per l'identificazione, P. De
Stefano et al, 1993 |
Grossular |
1.73 |
1.76 |
3.57 |
3.73 |
Gemology Tools Professional 2010 |
hessonite - Grossular |
1.73 |
1.76 |
3.57 |
3.73 |
Gemology Tools Professional 2010 |
Grossular |
1.732 |
1.759 |
3.57 |
3.73 |
Bestimmungstabellen für Edelsteine,
Birgit Günther, 2008 |
Tsavorite - Grossular |
1.739 |
1.745 |
3.57 |
3.75 |
http://www.geminterest.com |
hessonite - Grossular |
1.74 |
1.75 |
3.62 |
3.7 |
Tabellen zur Edelstein-Bestimmung,
Pschichholz FGA, 1975 |
hessonite - Grossular |
1.742 |
1.757 |
3.6 |
3.73 |
http://www.geminterest.com |
hessonite - Grossular |
1.742 |
1.748 |
3.58 |
3.67 |
John Sinkakas, Gemstone and mineral data
book,1972 |
hessonite - Grossular |
1.742 |
1.748 |
3.65 |
3.65 |
Gems, R Webster, 5th edition 1994 |
Grossular |
|
|
3.4 |
3.71 |
Joel Arem, Color Encyclopedia of Gemstones,
1987 |
Grossular |
|
|
3.3 |
3.7 |
John Sinkakas, Gemstone and mineral data
book,1972 |
CAUSE OF
COLOUR
Stone |
Colour |
Cause
of colour |
Reference |
Tsavorite - grossular |
green |
V³+ in octahedral coordination |
Gems & Gemology Summer 1988 |
Hessonite - Grossular |
orange |
Mn³+ in distorted cubic coordination; Fe³+ |
Gems & Gemology Summer 1988 |
Grossular |
yellow, orange, orange-brown |
Charge transfers Fe²+ -> Fe³+ |
Mr. Dominique Flies, La couleur des
grenats, l’Université de Nantes, 2008 |
Hessonite - Grossular |
orange |
Charge transfer Fe²+ -> Fe³+ |
Mr. Dominique Flies, La couleur des
grenats, l’Université de Nantes, 2008 |
MINERAL
INCLUSIONS
Inclusion |
Stone |
Reference |
apatite |
Grossular |
E.J. Gübelin and J.I. Koivula, Photoatlas of
inclusions in Gemstones, volume 2 (2005) |
apatite |
Hessonite - Grossular |
E.J. Gübelin and J.I. Koivula, Photoatlas of
inclusions in Gemstones, volume 2 (2005) |
apatite |
Tsavorite - Grossular |
Gemmologie Jul 1999, p112 |
calcite |
grossular |
The Journal of Gemmology, 2014, Vol 34, No 3,
p195-197 |
calcite |
Hessonite - Grossular |
E.J. Gübelin and J.I. Koivula, Photoatlas of
inclusions in Gemstones, volume 2 (2005) |
calcite |
Tsavorite - Grossular |
E.J. Gübelin and J.I. Koivula, Photoatlas of
inclusions in Gemstones, volume 2 (2005) |
diopside |
Hessonite - Grossular |
Gemmological tables, Ulrich Henn, 2004 |
graphite |
Tsavorite - Grossular |
E.J. Gübelin and J.I. Koivula, Photoatlas of
inclusions in Gemstones, volume 2 (2005) |
orthoclase |
Grossular |
E.J. Gübelin and J.I. Koivula, Photoatlas of
inclusions in Gemstones, volume 2 (2005) |
pyrite |
Grossular |
E.J. Gübelin and J.I. Koivula, Photoatlas of
inclusions in Gemstones, volume 2 (2005) |
quartz |
Grossular |
E.J. Gübelin and J.I. Koivula, Photoatlas of
inclusions in Gemstones, volume 2 (2005) |
quartz |
Tsavorite - Grossular |
E.J. Gübelin and J.I. Koivula, Photoatlas of
inclusions in Gemstones, volume 2 (2005) |
rutile |
Grossular |
E.J. Gübelin and J.I. Koivula, Photoatlas of
inclusions in Gemstones, volume 2 (2005) |
rutile |
Hessonite - Grossular |
www.geminterest.com |
spinel |
Hessonite - Grossular |
E.J. Gübelin and J.I. Koivula, Photoatlas of
inclusions in Gemstones, volume 2 (2005) |
sulphur |
grossular |
The Journal of Gemmology, 2014, Vol 34, No 3,
p195-197 |
titanite |
grossular |
The Journal of Gemmology, 2014, Vol 34, No 3,
p195-197 |
zircon |
Grossular |
E.J. Gübelin and J.I. Koivula, Photoatlas of
inclusions in Gemstones, volume 2 (2005) |
LOCALITIES
STONE |
LOCALITIES |
REFERENCE |
|||
Grossular |
Jeffrey Mine (Jeffrey Quarry), Asbestos, Shipton
Township |
Richmond County |
Quebec |
Canada |
Joel Arem, Color Encyclopedia of Gemstones,
1987 |
tsavorite-Grossular |
Jeffrey Mine (Jeffrey Quarry), Asbestos, Shipton
Township |
Richmond County |
Quebec |
Canada |
InColor Fall-Winter 2007-2008 p19 |
Grossular |
Kabanga, Voi |
Taita |
Coast Province |
Kenya |
Gems & gemology Spring 2009 p65 |
tsavorite-Grossular |
Scorpion Mine, Tsavo National Park |
Voi, Taita |
Coast Province |
Kenya |
The Journal of Gemmology, 2016, Vol 35, No. 1, p
22-24 |
Grossular |
Itrafo (Trafo), Ampanivana area, Andrembesoa
Commune, Betafo Department |
Vakinankaratra Region (Betafo -
Antsirabé region) |
Antananarivo Province |
Madagascar |
Gems & Gemology 2012 Fal, p180 |
tsavorite-Grossular |
Itrafo (Trafo), Ampanivana area, Andrembesoa
Commune, Betafo Department |
Vakinankaratra Region (Betafo -
Antsirabé region) |
Antananarivo Province |
Madagascar |
Gems & Gemology 2012 Fal, p180 |
hessonite-Grossular |
Ilakaka gem deposit, Ilakaka,
Departementa Ranohira |
Horombe region |
Fianarantsoa Province |
Madagascar |
Gemmologie, Dez 1999,p196 |
tsavorite-Grossular |
Bekily Department |
Southwestern Region |
Tuléar (Toliara) Province |
Madagascar |
Gemmologie, Dez 1999,p196 |
tsavorite-Grossular |
Ejeda, Ampanihy Department |
Southwestern Region |
Tulear Province |
Madagascar |
Gems & Gemology 2003 Fall p 231 |
Grossular |
|
Tunduru-Songea area |
Ruvuma Region |
Tanzania |
Gemmologie, 1997, Mar,p31 |
hessonite-Grossular |
|
Tunduru-Songea area |
Ruvuma Region |
Tanzania |
Gemmologie, 1997, Mar,p31 |
tsavorite-Grossular |
|
Tunduru-Songea area |
Ruvuma Region |
Tanzania |
Gemmologie, 1997, Mar,p31 |
tsavorite-Grossular |
Umba |
|
Tanga |
Tanzania |
Gems & Gemology 2001 Winter p331 |
CHEMICAL DATA
Stone |
Colour |
Locality |
Reference |
SiO2 |
Al2O3 |
MnO |
MgO |
FeO |
TiO2 |
CaO |
Na2O |
Cr2O3 |
V2O3 |
Fe2O3 |
K2O |
|
Grossular |
colourless |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
40.3 |
20.9 |
0.1 |
0.4 |
0.1 |
0.2 |
38 |
|
|
|
|
|
Grossular |
dark green |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
41.9 |
20.5 |
0.4 |
0.4 |
0.1 |
0.3 |
34.9 |
|
0.15 |
1.4 |
|
|
Grossular |
medium green |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
42.5 |
20.5 |
0.5 |
0.3 |
0.1 |
0.3 |
34.5 |
|
0.12 |
1.2 |
|
|
Grossular |
medium green |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
42.5 |
21.1 |
0.5 |
0.7 |
0.04 |
0.2 |
33.7 |
|
0.1 |
1.1 |
|
|
Grossular |
medium green |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
42.2 |
21.6 |
0.6 |
0.4 |
0.1 |
0.4 |
33.6 |
|
0.09 |
1 |
|
|
Grossular |
medium green |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
41.6 |
21.7 |
0.4 |
0.1 |
0.03 |
0.3 |
34.8 |
|
0.06 |
1 |
|
|
Grossular |
light green |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
42.8 |
21.5 |
0.2 |
0.5 |
0.1 |
0.3 |
34.5 |
|
|
0.11 |
|
|
Grossular |
medium green |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
43 |
20.5 |
0.6 |
0.3 |
0.1 |
0.2 |
34.5 |
|
0.09 |
0.7 |
|
|
Grossular |
light green |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
42.1 |
22.4 |
0.1 |
0.9 |
0.1 |
0.4 |
33.9 |
|
|
0.09 |
|
|
Grossular |
very light green |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
41.9 |
21.3 |
0.1 |
0.9 |
0.1 |
0.4 |
35.1 |
|
0.09 |
0.1 |
|
|
Grossular |
dark green |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
40.3 |
20.6 |
0.2 |
0.2 |
0 |
0.2 |
36.3 |
|
0.1 |
1.5 |
|
|
Grossular |
colourless |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
39.5 |
19.9 |
0.2 |
0.1 |
0.1 |
0.4 |
39.7 |
|
|
0.06 |
|
|
Grossular |
dark green |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
42 |
21 |
0.4 |
0.3 |
0.03 |
0.2 |
34.6 |
|
0.14 |
1.4 |
|
|
Grossular |
colourless |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
39.7 |
21.2 |
0.1 |
0.1 |
0.1 |
0.3 |
38.5 |
|
|
|
|
|
Grossular |
|
East Africa |
|
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1988, 37, Nr 1/2, 72 |
37.78 |
17.38 |
0.48 |
0.61 |
|
0.31 |
35.12 |
|
0.34 |
6.85 |
|
|
Grossular |
|
East Africa |
|
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1988, 37, Nr 1/2, 72 |
38.06 |
18.16 |
0.36 |
0.57 |
|
0.2 |
35.96 |
|
0.46 |
5.96 |
|
|
Grossular |
|
East Africa |
|
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1988, 37, Nr 1/2, 72 |
37.68 |
18.27 |
0.46 |
0.59 |
|
0.26 |
35.28 |
|
0.56 |
5.21 |
|
|
Grossular |
|
East Africa |
|
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1988, 37, Nr 1/2, 72 |
37.65 |
18.53 |
0.48 |
0.46 |
|
0.15 |
35.67 |
|
0.38 |
4.76 |
|
|
Grossular |
|
East Africa |
|
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1988, 37, Nr 1/2, 72 |
38.64 |
20.54 |
0.42 |
0.56 |
|
0.19 |
36.05 |
|
0.25 |
2.2 |
|
|
Grossular |
|
East Africa |
|
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1988, 37, Nr 1/2, 72 |
38.66 |
21.57 |
0.53 |
0.48 |
|
0.1 |
36.44 |
|
0.23 |
0.22 |
|
|
Grossular |
|
East Africa |
|
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1988, 37, Nr 1/2, 72 |
38.71 |
21.64 |
0.51 |
0.48 |
|
0.14 |
36.24 |
|
0.15 |
0.17 |
|
|
Grossular |
near colourless |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
43.3 |
22.8 |
0.1 |
1 |
0.1 |
0.3 |
32.3 |
|
|
0.05 |
0 |
|
Grossular |
medium green |
East Africa |
|
Gems & Gemology 1979 Summer p164 |
41.9 |
20.5 |
0.3 |
0.4 |
|
0.2 |
35.5 |
|
0.02 |
1.2 |
|
|
Grossular |
yellow |
unknown |
|
The Journal of Gemmology
2007,30,5/6,307-319 |
39.49 |
21.31 |
0.35 |
0.37 |
|
0.52 |
36.49 |
0.03 |
0.02 |
|
1.8 |
0.02 |
Grossular |
colourless |
Jeffrey Mine, Quebec |
Canada |
The Journal of Gemmology 1982, Vol 18, N°2, p128 |
39.8 |
22.1 |
0.1 |
|
0.4 |
|
38.3 |
|
0.2 |
|
|
|
Grossular |
pink |
Jeffrey Mine, Quebec |
Canada |
The Journal of Gemmology 1982, Vol 18, N°2, p128 |
39.4 |
21.9 |
0.5 |
|
0.5 |
0.2 |
37.8 |
|
0.2 |
|
|
|
Grossular |
green |
Jeffrey Mine, Quebec |
Canada |
The Journal of Gemmology 1982, Vol 18, N°2, p128 |
37.8 |
17.04 |
0.77 |
0.03 |
0.94 |
1.2 |
35.88 |
|
6.97 |
|
|
|
Grossular |
reddish brown |
Cocoktau, Altay Mts |
China |
Gems & Gemology 1993 winter, p276 |
39.05 |
20.33 |
0.1 |
0.3 |
0.5 |
0.16 |
36.65 |
0.01 |
0.01 |
|
3.12 |
0.07 |
Grossular |
yellowish green |
Cocoktau, Altay Mts |
China |
Gems & Gemology 1993 winter, p276 |
39.4 |
21.89 |
0.05 |
0.13 |
0.23 |
0.07 |
36.68 |
0.01 |
0.01 |
|
1.11 |
0.02 |
Grossular |
green |
Cocoktau, Altay Mts |
China |
Gems & Gemology 1993 winter, p276 |
39.03 |
22.65 |
0.05 |
0.14 |
0.02 |
0.02 |
37.04 |
|
|
|
0.63 |
|
Grossular |
cat's eye |
|
East Africa |
The Journal of Gemmology 1995, Vol 24, N°8, p 574 |
38 |
21.8 |
0.85 |
1.52 |
17.5 |
|
20.6 |
|
|
|
|
|
Grossular |
brown-green |
Itrafo |
Madagascar |
Gems & Gemology Fall 2012, p183 |
39.47 |
21.14 |
0.1 |
0.27 |
0.12 |
0.4 |
36.49 |
0.01 |
|
0.19 |
1.85 |
|
Grossular |
yellowish green |
Itrafo |
Madagascar |
Gems & Gemology Fall 2012, p183 |
39.77 |
21.99 |
0.15 |
0.24 |
0.22 |
0.2 |
36.66 |
0.01 |
0.01 |
0.3 |
1.56 |
|
Grossular |
green |
Itrafo |
Madagascar |
Gems & Gemology Fall 2012, p183 |
39.6 |
21.58 |
0.13 |
0.18 |
0.22 |
0.23 |
36.65 |
0.01 |
0.02 |
0.48 |
1.29 |
|
Grossular |
red |
Sierra de la Cruces, Sierra Mojada,
Coahuila |
Mexico |
Zeitschrift der Deutschen Gemmologischen
Gesellschaft 61/1-2, 2012, p6 |
39.78 |
22 |
0.94 |
0.78 |
0.33 |
0.03 |
36.65 |
|
|
|
|
|
Grossular |
orange-red |
|
Somaliland |
The Journal of Gemmology 2000, Vol27, N°3,p148 |
38.78 |
19.97 |
0.12 |
0.12 |
1.21 |
0.71 |
35.49 |
|
0.01 |
|
3.42 |
|
Hessonite - Grossular |
yellowish-brown |
Budhido, Orissa |
India |
The Journal of Gemmology 1994, Vol 24, N°2, p 79 |
35.97 |
17.64 |
0.73 |
|
|
0.26 |
38.73 |
|
|
|
6.67 |
|
Hessonite - Grossular |
yellowish-brown |
Budhido, Orissa |
India |
The Journal of Gemmology 1994, Vol 24, N°2, p 79 |
34.63 |
17.59 |
1.26 |
|
|
0.33 |
39.81 |
|
|
|
6.38 |
|
Hessonite - Grossular |
light yellowish |
Budhido, Orissa |
India |
The Journal of Gemmology 1994, Vol 24, N°2, p 79 |
36.75 |
18.95 |
0.67 |
|
|
0.27 |
37.82 |
|
|
|
5.54 |
|
Hessonite - Grossular |
yellowish-brown |
Burubura, Orissa |
India |
The Journal of Gemmology 1994, Vol 24, N°2, p 78 |
37.32 |
17.12 |
0.26 |
|
|
0.44 |
38.12 |
|
|
|
6.75 |
|
Hessonite - Grossular |
yellowish-brown |
Burubura, Orissa |
India |
The Journal of Gemmology 1994, Vol 24, N°2, p 78 |
38.5 |
17.78 |
0.22 |
|
|
0.33 |
36.24 |
|
|
|
6.93 |
|
Hessonite - Grossular |
brown |
Burubura, Orissa |
India |
The Journal of Gemmology 1994, Vol 24, N°2, p 78 |
37.14 |
17.2 |
0.8 |
|
|
0.51 |
36.15 |
|
|
|
8.2 |
|
Hessonite - Grossular |
brown |
Dahikbala, Orissa |
India |
The Journal of Gemmology 1994, Vol 24, N°2, p 79 |
36.17 |
18.62 |
1.6 |
|
|
0.41 |
36.12 |
|
|
|
7.09 |
|
Hessonite - Grossular |
yellowish-brown |
Dahikbala, Orissa |
India |
The Journal of Gemmology 1994, Vol 24, N°2, p 79 |
36.39 |
18.85 |
1.21 |
|
|
0.42 |
36.45 |
|
|
|
6.68 |
|
Hessonite - Grossular |
yellowish-brown |
Dahikbala, Orissa |
India |
The Journal of Gemmology 1994, Vol 24, N°2, p 79 |
35.97 |
18.84 |
1.3 |
|
|
0.37 |
37.62 |
|
|
|
5.89 |
|
Hessonite - Grossular |
yellowish-brown |
Ghatpara, Orissa |
India |
The Journal of Gemmology 1994, Vol 24, N°2, p 78 |
37.48 |
18.46 |
0.66 |
|
|
0.15 |
37.1 |
|
|
|
6.15 |
|
Hessonite - Grossular |
light yellowish |
Ghatpara, Orissa |
India |
The Journal of Gemmology 1994, Vol 24, N°2, p 78 |
38.15 |
20.43 |
0.37 |
|
|
|
39.59 |
|
|
|
1.1 |
|
Hessonite - Grossular |
yellowish-brown |
Ghatpara, Orissa |
India |
The Journal of Gemmology 1994, Vol 24, N°2, p 78 |
38.31 |
19.55 |
0.44 |
|
|
|
37.53 |
|
|
|
4.17 |
|
Hessonite - Grossular |
yellowish-orange |
|
Sri Lanka |
The Journal of Gemmology
2007,30,5/6,307-319 |
38.48 |
20.64 |
0.09 |
0.01 |
|
0.02 |
36.96 |
|
|
|
4.18 |
|
Hessonite - Grossular |
yellowish-orange |
|
Sri Lanka |
The Journal of Gemmology
2007,30,5/6,307-319 |
39.13 |
18.34 |
0.32 |
0.06 |
|
0.2 |
37.8 |
0.01 |
0.01 |
|
4.96 |
0.01 |
Hessonite - Grossular |
orange |
Tunduru-Songea region |
Tanzania |
Gemmologie, Zeitschrift der deutschen
gemmologischen Gesellschaft, 1997, Mar, p40 |
38.98 |
20.99 |
|
|
1.07 |
|
35.85 |
|
|
|
2.39 |
|
Hessonite - Grossular |
orange |
Jeffrey Mine, Quebec |
Canada |
The Journal of Gemmology 1982, Vol 18, N°2, p128 |
39.29 |
22.17 |
0.57 |
|
1.85 |
0.05 |
36.84 |
|
0.01 |
|
|
|
tsavorite - grossular |
green |
|
East africa |
Gems & Gemology 1974 Summer p297 |
41.6 |
20.7 |
1.1 |
0.5 |
0.1 |
0.3 |
34 |
|
0.3 |
1.6 |
|
|
tsavorite - grossular |
green |
|
East africa |
Gems & Gemology 1974 Summer p297 |
43.1 |
22.5 |
0.6 |
0.6 |
0.2 |
0.4 |
34.6 |
|
0.3 |
0.2 |
|
|
tsavorite - grossular |
green |
|
East africa |
Gems & Gemology 1974 Summer p297 |
42 |
22.9 |
0.4 |
0.5 |
0.2 |
0.5 |
35.2 |
|
0.04 |
0.1 |
|
|
tsavorite - grossular |
green |
|
East africa |
Gems & Gemology 1974 Summer p297 |
41.8 |
20.8 |
0.7 |
0.4 |
0.2 |
0.4 |
34.2 |
|
0.2 |
1.5 |
|
|
tsavorite - grossular |
green |
Lualeni |
Kenya |
The Journal of Gemmology, 1997, Vol 25, N°6, p392 |
38.7 |
20.9 |
0.75 |
0.5 |
0.05 |
0.25 |
35.1 |
|
0.19 |
3.3 |
|
|
tsavorite - grossular |
green |
Lualeni |
Kenya |
The Journal of Gemmology, 1997, Vol 25, N°6, p392 |
39.26 |
21.28 |
0.74 |
0.5 |
|
0.43 |
36.12 |
|
|
1.71 |
0.1 |
|
tsavorite - grossular |
green |
|
Madagascar |
Gemmologie, Zeitschrift der deutschen
gemmologischen Gesellschaft, 1999, Jul p111 |
38.82 |
20.2 |
1.12 |
0.4 |
|
0.4 |
35.62 |
|
|
2.52 |
0.06 |
|
tsavorite - grossular |
green |
|
Madagascar |
Gemmologie, Zeitschrift der deutschen
gemmologischen Gesellschaft, 1999, Jul p111 |
39.58 |
20.64 |
1.08 |
0.4 |
|
0.36 |
35.94 |
|
|
2.24 |
0.06 |
|
tsavorite - grossular |
green |
Gogogogo |
Madagascar |
The Journal of Gemmology, 1997, Vol 25, N°6, p392 |
39.15 |
20.13 |
0.72 |
0.5 |
0.07 |
0.39 |
36.37 |
|
0.3 |
2.5 |
|
|
tsavorite - grossular |
intense green (tsavorite) |
Gogogogo |
Madagascar |
Gems & Gemology Fall 2012, p183 |
39.57 |
21.17 |
0.58 |
0.55 |
0.22 |
0.42 |
35.82 |
|
0.29 |
1.05 |
0.08 |
|
tsavorite - grossular |
intense green |
Itrafo |
Madagascar |
Gems & Gemology Fall 2012, p183 |
39.76 |
21.45 |
0.13 |
0.08 |
0.11 |
0.29 |
37.01 |
|
0.01 |
0.83 |
1.26 |
|
tsavorite - grossular |
green |
Swat |
Pakistan |
The Journal of Gemmology, 1997, Vol 25, N°6, p392 |
38.17 |
18.51 |
0.3 |
0.1 |
|
0.44 |
36.62 |
|
|
4.52 |
0.05 |
|
tsavorite - grossular |
green |
|
Tanzania |
The Journal of Gemmology
2007,30,5/6,307-319 |
39.43 |
19.61 |
0.75 |
0.58 |
|
0.39 |
36.8 |
0.02 |
0.34 |
1.14 |
0.02 |
0.01 |
tsavorite - grossular |
green |
|
Tanzania |
The Journal of Gemmology
2007,30,5/6,307-319 |
39.13 |
20.39 |
1.19 |
0.5 |
0.01 |
0.43 |
35.24 |
|
0.18 |
1.48 |
|
|
tsavorite - grossular |
intense green (tsavorite) |
|
Tanzania |
Gems & Gemology Fall 2012, p183 |
39.59 |
20.53 |
1.02 |
0.52 |
|
0.39 |
35.97 |
0.01 |
0.24 |
1.24 |
0.04 |
|
tsavorite - grossular |
green |
Karo pit, Merelani Hills |
Tanzania |
Gems & Gemology 1990 summer p 147 |
40.33 |
22.49 |
0.27 |
0.02 |
|
0.28 |
37.16 |
|
0.05 |
0.19 |
0.26 |
|
tsavorite - grossular |
green |
Komolo |
Tanzania |
The Journal of Gemmology, 1997, Vol 25, N°6, p392 |
42.5 |
20.5 |
0.5 |
0.3 |
0.1 |
0.3 |
34.5 |
|
0.12 |
1.2 |
|
|