|
INVESTIGATIONS
|
Stone |
RI min |
RI max |
Biref min |
Biref max |
Dens min |
Dens max |
Colour |
Locality |
Info |
nx min |
nx max |
ny min |
ny max |
nz min |
nz max |
Spectrum |
UVS |
UVL |
Reference |
|
Baddeleyite |
|
|
|
|
5.84 |
5.92 |
black |
|
|
|
|
|
|
|
|
|
very weak
yellow-green |
inert |
Gems & Gemology 2007
winter,p376 |
|
Baddeleyite |
|
|
|
|
5.84 |
5.84 |
dark
brown |
|
translucent to opaque,
1.06ct |
|
|
|
|
|
|
|
|
|
Gemmologie, Zeitschrift der Deutschen
Gemmologischen Gesellschaft 2010 59/3-4,
p68 |
|
Baddeleyite |
|
|
|
|
5.88 |
6.07 |
dark greenish
brown |
|
|
|
|
|
|
|
|
500nm |
weak yellowish
green |
inert |
Gems & Gemology 2001 Fall
p212 |
TABLES
|
Stone |
RI min |
RI max |
Biref min |
Biref max |
Dens min |
Dens max |
nx min |
nx
max |
ny min |
ny max |
nz min |
nz max |
Reference |
|
Baddeleyite |
2.13 |
2.2 |
0.07 |
0.07 |
5.4 |
6.07 |
|
|
|
|
|
|
Tables of Gemstone
Identification, Roger Dedeyn, Ivo Quintens, 2007
|
|
Baddeleyite |
2.136 |
2.243 |
0.107 |
0.107 |
5.73 |
5.88 |
|
|
|
|
|
|
Bestimmungstabellen für Edelsteine, Birgit
Günther, 2008
|
CAUSE OF COLOUR
|
Stone |
Colour |
Cause of
colour |
Reference |
|
Baddeleyite |
dark
brown |
The exact origin of color of
this material is not known, but it seems to be related to rare-earth
elements and radiation damage color
centers |
http://minerals.caltech.edu |
MINERAL INCLUSIONS
LOCALITIES