|
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 |
Vanadinite |
|
|
|
|
7.24 |
7.24 |
bright
yellow |
Congo |
|
|
|
|
|
none |
weak
orange-red |
weak
orange-red |
Gems & Gemology 2008 summer,
p184 |
TABLES
Stone |
RI min |
RI max |
Biref min |
Biref max |
Dens min |
Dens max |
ne min |
ne max |
no min |
no max |
Reference |
Vanadinite |
2.35 |
2.416 |
0.066 |
0.066 |
6.5 |
7.1 |
2.350 |
2.350 |
2.416 |
2.416 |
Joel Arem, Color Encyclopedia of Gemstones,
1987
|
Vanadinite |
2.35 |
2.416 |
0.066 |
0.066 |
6.5 |
7.1 |
|
|
|
|
http://www.gemmology.be
|
Vanadinite |
2.35 |
2.416 |
0.066 |
0.066 |
6.5 |
7.1 |
2.350 |
2.350 |
2.416 |
2.416 |
http://www.geminterest.com
|
Vanadinite |
2.35 |
2.416 |
0.066 |
0.066 |
6.5 |
7.24 |
|
|
|
|
Tables of Gemstone Identification, Roger Dedeyn,
Ivo Quintens, 2007
|
CAUSE OF COLOUR
MINERAL INCLUSIONS
LOCALITIES
CHEMICAL DATA (%)