|
INVESTIGATIONS
|
Stone |
RI min |
RI max |
Biref min |
Biref max |
Dens min |
Dens max |
Colour |
Location |
Info |
ne min |
ne max |
no min |
no max |
Spectrum |
UVS |
UVL |
Reference |
|
Rhodochrosite |
1.58 |
|
|
|
3.59 |
3.59 |
pinkish red |
|
19.7ct, opaque |
|
|
|
|
|
inert |
inert |
ACAM Lab
|
|
Rhodochrosite |
1.59 |
|
|
|
3.5 |
3.6 |
pink with white bands |
Capillitas, Catamarca, Argentina |
|
|
|
|
|
|
red-violet |
weak black-pinkish |
Gems & Gemology 1973 Spring, 141-143 |
|
Rhodochrosite |
1.597 |
1.812 |
|
|
3.64 |
3.64 |
pinkish to deep red, with orange, brown, and black secondary colours |
Hotazel,
South-Africa |
|
|
|
|
|
band at 535-565nm, lines at 551 and 410nm |
inert |
inert, dull red |
Gems & Gemology 1997 summer p130 |
|
Rhodochrosite |
1.597 |
|
|
|
3.69 |
3.69 |
red-orange |
Hotazel, South Africa |
17.77ct |
|
|
|
|
band at 445-465nm and 540-560nm and below 420nm |
inert |
inert |
GIA Gem Database 34679 |
|
Rhodochrosite |
1.599 |
|
|
|
3.7 |
3.71 |
pinkish orange to pink-orange |
Sweet Home Mine, Colorado |
|
1.599 |
1.600 |
|
|
strong band at 415nm, two broader bands at 440-470 and 540-560 |
inert |
inert |
Gems & Gemology 1997 summer p122-133 |
|
Rhodochrosite |
1.6 |
|
|
|
3.71 |
3.73 |
pink |
Wutong mine, Liubao, Cangwu County, Wuzhou prefecture, Guangxi Zhuang
Autonomous Region, China |
Six faceted (0.29, 0.29, 0.76, 6.53, 7.65 and 7.96 ct), transparent |
|
|
|
|
|
inert |
inert |
The Journal of Gemmology 2018 36(4), p334-345 |
|
Rhodochrosite |
1.602 |
|
|
|
3.71 |
3.71 |
|
|
0.9ct |
|
|
|
|
|
red |
|
ACAM Lab
538 |
|
Rhodochrosite |
1.602 |
|
|
|
3.72 |
3.72 |
orangy red |
Hotazel, North Cape Province, South africa |
5.21ct, transparent |
|
|
|
|
broad absorption below 420nm, between 445-465nm, between 550-560nm |
inert |
inert |
GIA Gem Database 35019 |
|
Rhodochrosite |
1.603 |
|
|
|
3.72 |
3.72 |
|
Minas Gerais, Brasil |
7.78ct |
|
|
|
|
|
weak red |
inert |
The Journal of Gemmology 2015 Vol 34, No.6, p473-475 |
|
Rhodochrosite |
1.605 |
|
|
|
3.7 |
3.7 |
red-orange |
Hotazel, South Africa |
11.32ct |
|
|
|
|
band at 545-555and below 460nm |
inert |
inert |
GIA Gem Database 34709 |
|
Rhodochrosite |
1.62 |
|
|
|
3.71 |
3.71 |
pink |
|
2.55ct |
|
|
|
|
|
inert |
inert |
ACAM Lab
2072 |
|
Rhodochrosite |
|
|
|
|
3.54 |
3.59 |
pink |
Sunnyside mine group, Bonita Peak, Gladstone, Eureka District, San Juan
County, Colorado, USA |
Two rough (1.43 and 2.55 g),
transparent |
|
|
|
|
|
inert |
inert |
The Journal of Gemmology 2018 36(4), p334-345 |
|
Rhodochrosite |
|
|
|
|
3.57 |
3.63 |
Pink, orangey pink |
Sweet Home mine, Mount Bross, Alma District, Park County, Colorado, USA |
5.04 and 11.04 ct |
|
|
|
|
|
inert |
inert |
The Journal of Gemmology 2018 36(4), p334-345 |
|
Rhodochrosite |
|
|
|
|
3.59 |
3.63 |
pink and white banding |
Capillitas Mine, Andalgalá Department, Catamarca, Argentina |
two cabochons (8.06 and 30.56 ct), transparent to translucent |
|
|
|
|
|
inert |
inert |
The Journal of Gemmology 2018 36(4), p334-345 |
|
Rhodochrosite |
|
|
|
|
3.63 |
3.72 |
Light pink, pink and light, slightly orangey pink |
Minas Gerais, Brazil |
Seven rough (0.04, 0.05, 0.13, 0.14, 0.15, 0.21 and 1.10 g), transparent |
|
|
|
|
|
inert |
inert |
The Journal of Gemmology 2018 36(4), p334-345 |
|
Rhodochrosite |
|
|
|
|
3.65 |
3.66 |
Light pinkorange; orangey red |
N'Chwaning mines, Kuruman, Northern Cape Province, South Africa |
Three faceted (4.84, 5.03 and 9.43 ct); three rough (0.03, 0.10 and 1.38
g), transparent |
|
|
|
|
|
inert |
inert |
The Journal of Gemmology 2018 36(4), p334-345 |
|
Rhodochrosite |
|
|
|
|
3.65 |
3.65 |
Pink-orange, orangey pink-red and pink-red |
Uchucchacua mine, Oyon Province, Lima Departmen, Peru |
Two faceted (6.22 and 6.51 ct); one rough (1.07 g); one crystal cluster
(18.5 g), transparent |
|
|
|
|
|
inert |
inert |
The Journal of Gemmology 2018 36(4), p334-345 |
|
Rhodochrosite |
|
|
|
|
3.71 |
3.71 |
red |
Sweet Home Mine, Park County, Colorado, USA |
4.62, transparent |
|
|
|
|
broad absorption below 420nm, between 440-460nm, between 535-555nm |
inert |
inert |
GIA Gem Database 35491 |
|
Rhodochrosite |
|
|
|
|
3.73 |
3.73 |
red |
Sweet Home Mine, Colorado, USA |
9.06ct |
|
|
|
|
band at 525-575nm and below 470nm |
inert |
inert |
GIA Gem Database 35209 |
|
Rhodochrosite |
|
|
|
|
3.76 |
3.76 |
orangy red |
Sweet Home Mine, Colorado, USA |
10.50ct |
|
|
|
|
band at 440-470nm and 540-560nm and below 420nm |
inert |
inert |
GIA Gem Database 35212 |
TABLES
|
Stone |
RI
min |
RI
max |
Biref
min |
Biref
max |
Dens
min |
Dens
max |
ne
min |
ne
max |
no
min |
no
max |
Reference |
|
Rhodochrosite |
1.578 |
1.82 |
0.208 |
0.22 |
3.45 |
3.7 |
1.578 |
1.600 |
1.786 |
1.820 |
Bestimmungstabellen für Edelsteine,
Birgit Günther, 2008 |
|
Rhodochrosite |
1.578 |
1.86 |
0.201 |
0.22 |
3.3 |
3.74 |
1.578 |
1.695 |
1.786 |
1.860 |
Gemme, Dati per l'identificazione, P. De
Stefano et al, 1993 |
|
Rhodochrosite |
1.578 |
1.84 |
0.201 |
0.22 |
3.4 |
3.71 |
|
|
|
|
http://www.gemmology.be |
|
Rhodochrosite |
1.578 |
1.84 |
0.201 |
0.22 |
3.4 |
3.6 |
1.578 |
1.695 |
1.786 |
1.840 |
Joel Arem, Color Encyclopedia of Gemstones,
1987 |
|
Rhodochrosite |
1.578 |
1.84 |
0.201 |
0.22 |
3.3 |
3.7 |
1.578 |
1.695 |
1.786 |
1.840 |
http://www.geminterest.com |
|
Rhodochrosite |
1.578 |
1.84 |
0.201 |
0.22 |
3.4 |
3.72 |
1.578 |
1.695 |
1.786 |
1.840 |
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
|
Rhodochrosite |
1.58 |
1.82 |
0.201 |
0.22 |
3.45 |
3.7 |
1.580 |
1.600 |
1.788 |
1.820 |
Gemmological Tables, Ulrich Henn,
2004 |
|
Rhodochrosite |
1.58 |
1.82 |
0.21 |
0.22 |
3.45 |
3.7 |
|
|
|
|
Tabellen zur Edelstein-Bestimmung,
Pschichholz FGA, 1975 |
|
Rhodochrosite |
1.594 |
1.82 |
0.22 |
0.22 |
3.45 |
3.7 |
|
|
|
|
Gemology Tools Professional 2010 |
|
Rhodochrosite |
1.595 |
1.815 |
0.215 |
0.22 |
3.5 |
3.72 |
|
|
|
|
Gemmo.eu
|
|
Rhodochrosite |
1.597 |
1.82 |
|
|
3.45 |
3.7 |
|
|
|
|
John Sinkakas, Gemstone and mineral data
book,1972 |
|
Rhodochrosite |
1.6 |
1.62 |
0.22 |
0.22 |
|
|
|
|
|
|
John Sinkakas, Gemstone and mineral data
book,1972 |
|
Rhodochrosite |
1.6 |
1.82 |
0.22 |
0.22 |
3.45 |
3.7 |
|
|
|
|
Gems, R Webster, 5th edition 1994 |
CAUSE OF
COLOUR
|
Stone |
Colour |
Cause
of colour |
Reference |
|
Rhodochrosite |
pink to red |
Mn²+ in octahedral coordination |
Gems & Gemology Summer 1988 |
MINERAL
INCLUSIONS
|
Inclusion |
Stone |
Reference |
|
muscovite |
rhodochrosite |
The journal of Gemmology 2018 (4), p338 |
LOCALITIES
|
STONE |
LOCALITIES |
REFERENCE |
|||
|
Rhodochrosite |
Capillitas Mine |
Andalgala |
Catamarca |
Argentina |
Gems & Gemology 1973 Spring,
p141-143 |
|
Rhodochrosite |
Poudrette quarry |
Mont Saint-Hilaire, Rouville County |
Québec |
Canada |
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1994, Dez, p137 |
|
Rhodochrosite |
Wudong Mine, Liubao ("Babu"), Cangwu |
Wuzhou Prefecture |
Guangxi Zhuang Autonomous Region |
China |
Ottens, B. - China: Mineralien,
Fundstellen, Lagerstätten (2008) |
|
Rhodochrosite |
Hotazel |
Kalahari manganese fields |
Northern Cape Province |
South Africa |
Gems & Gemology 1997 summer p130 |
|
Rhodochrosite |
Sweet Home Mine, Alma district |
Park County |
Colorado |
USA |
Gems & Gemology 1997 summer p122-133 |
CHEMICAL DATA
(%)
|
Stone |
Colour |
Locality |
Reference |
MnO |
MgO |
FeO |
CO2 |
|
|
Rhodochrosite |
pink |
Capillitas |
Argentina |
Gems & Gemology 1973, Spring, p142 |
55.82 |
2.05 |
2.4 |
38.35 |