|
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 |
|
Cassiterite |
2.003 |
2.101 |
0.098 |
0.098 |
6.95 |
6.95 |
black (opaque) |
Sakangyi, Mogok, Birma |
|
|
|
|
|
|
inert |
inert |
The Australian Gemmologist 2005 22,
p303-309 |
|
Cassiterite |
|
|
|
|
6.98 |
6.98 |
orange |
Sri Lanka |
2.76ct |
|
|
|
|
|
|
|
Gemmologie, Zeitschrift der Deutschen
Gemmologischen Gesellschaft 2000 Mar, p1 |
|
Cassiterite |
|
|
|
|
6.99 |
6.99 |
very dark brownish orange |
Sri Lanka |
4.07ct |
|
|
|
|
|
inert |
inert |
GIA Gem Database 34788 |
|
Cassiterite |
|
|
|
|
7 |
7 |
black |
|
2.03ct, semitranslucent |
|
|
|
|
|
inert |
inert |
Gems & Gemology 2012 Spring, p63 |
|
Cassiterite |
|
|
|
|
7.04 |
7.04 |
yellowish orange |
Ximeng, Yunnan, China |
9.01ct |
|
|
|
|
no features |
inert |
inert |
GIA Gem Database 35570 |
TABLES
|
Stone |
RI
min |
RI
max |
Biref
min |
Biref
max |
Dens
min |
Dens
max |
ne
min |
ne
max |
no
min |
no
max |
Reference |
|
Cassiterite |
1.98 |
2.12 |
0.094 |
0.102 |
6.8 |
7.05 |
|
|
|
|
Gemmo.eu 2013 |
|
Cassiterite |
1.99 |
2.106 |
0.096 |
0.098 |
6.7 |
7.1 |
2.097 |
2.106 |
1.990 |
2.006 |
Tables of Gemstone Identification, Roger Dedeyn, Ivo
Quintens, 2007 |
|
Cassiterite |
1.996 |
2.092 |
0.096 |
0.1 |
6.87 |
7.03 |
2.092 |
2.111 |
1.996 |
2.006 |
Gemme, Dati per l'identificazione, P. De
Stefano et al, 1993 |
|
Cassiterite |
1.996 |
2.101 |
0.094 |
0.098 |
6.87 |
7.03 |
2.090 |
2.101 |
1.996 |
2.003 |
Tabellen zur Edelstein-Bestimmung,
Pschichholz FGA, 1975 |
|
Cassiterite |
1.997 |
2.106 |
0.096 |
0.098 |
6.87 |
7.03 |
|
|
|
|
Bestimmungstabellen für Edelsteine,
Birgit Günther, 1981 |
|
Cassiterite |
1.997 |
2.098 |
0.096 |
0.097 |
6.87 |
7.03 |
2.093 |
2.098 |
1.997 |
2.001 |
Gemmological Tables, Ulrich Henn,
2004 |
|
Cassiterite |
1.997 |
2.101 |
0.096 |
0.098 |
6.7 |
7.12 |
2.093 |
2.101 |
1.997 |
2.006 |
http://www.geminterest.com |
|
Cassiterite synthetic |
1.997 |
2.093 |
0.098 |
0.098 |
6.8 |
7.1 |
|
|
|
|
Joel Arem, Color Encyclopedia of Gemstones,
1987 |
|
Cassiterite synthetic |
1.997 |
2.093 |
0.096 |
0.096 |
6.8 |
7.1 |
|
|
|
|
Bestimmungstabellen für Edelsteine,
Birgit Günther, 1981 |
|
Cassiterite synthetic |
1.997 |
2.093 |
0.096 |
0.096 |
6.8 |
7.1 |
|
|
|
|
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
|
Synthetic Cassiterite |
2 |
2.105 |
0.094 |
0.102 |
6.8 |
7.05 |
|
|
|
|
Gemmo.eu 2013 |
|
Cassiterite |
2.001 |
2.101 |
0.098 |
0.098 |
6.8 |
7 |
|
|
|
|
John Sinkakas, Gemstone and mineral data
book,1972 |
|
Cassiterite |
2.006 |
2.101 |
0.096 |
0.098 |
6.7 |
7.1 |
|
|
|
|
http://www.gemmology.be |
|
Cassiterite |
2.006 |
2.101 |
0.098 |
0.098 |
6.7 |
7.1 |
2.097 |
2.101 |
2.006 |
2.006 |
Joel Arem, Color Encyclopedia of Gemstones,
1987 |
|
Cassiterite |
2.03 |
2.101 |
0.098 |
0.098 |
6.8 |
7 |
|
|
|
|
Gems, R Webster, 5th edition 1994 |
CAUSE OF
COLOUR
MINERAL
INCLUSIONS
|
Inclusion |
Stone |
Reference |
|
tourmaline |
Cassiterite |
Gems & Gemology 2002 summer, p176 |
LOCALITIES
|
STONE |
LOCALITIES |
REFERENCE |
|||
|
Cassiterite |
Viloco Mine (Araca mine) |
Loayza Province |
La Paz Department |
Bolivia |
Gems & Gemology 2002 Summer,
p175-176 |
|
Cassiterite |
Krupka (Graupen), Teplice (Teplitz) |
Krusne Hory, Severocesky Kraj |
Bohemia |
Czech Republic |
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1992, Dec, p166 |
|
Cassiterite |
Sakangyi |
Mogok |
Mandalay |
Myanmar |
The Australian Gemmologist (2005) 22,
p308 |
|
Cassiterite |
|
|
Erongo Region |
Namibia |
Namibia, Zauberwelt edler Steine und
Kristalle, Steffen Jahn e.a., 2001 |
|
Cassiterite |
|
|
|
Spain |
Joel Arem, Color Encyclopedia of Gemstones, 1987 |
CHEMICAL DATA