|
INVESTIGATIONS
Stone |
RI min |
RI max |
Dens min |
Dens max |
Colour |
Location |
Info |
Spectrum |
UVS |
UVL |
Reference |
Bakelite |
1.66 |
1.66 |
1.28 |
1.28 |
reddish
brown |
|
RI spot, amber
imitation |
|
inert |
inert |
ACAM lab
4748 |
TABLES
Stone |
RI min |
RI max |
Dens min |
Dens max |
Reference |
Bakelite |
|
|
1.25 |
1.3 |
John Sinkakas, Gemstone and
mineral data book,1972
|
Bakelite |
1.47 |
1.47 |
1.25 |
2 |
Gems, R Webster, 5th edition
1994
|
Bakelite |
1.5 |
1.7 |
1.25 |
1.9 |
Bestimmungstabellen für Edelsteine, Birgit
Günther, 1981
|
Bakelite |
1.5 |
1.7 |
1.25 |
1.35 |
Gemme, Dati per l'identificazione, P. De Stefano
et al, 1993
|
Bakelite |
1.5 |
1.7 |
1.25 |
1.3 |
Tables of Gemstone
Identification, Roger Dedeyne, Ivo Quintens, 2007
|
CAUSE OF COLOUR