|
INVESTIGATIONS
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 |
|
Kurnakovite |
1.486 |
1.525 |
0.026 |
0.036 |
1.83 |
1.86 |
1.486 |
1.490 |
|
|
1.518 |
1.525 |
Tabellen zur Edelstein-Bestimmung, Pschichholz
FGA, 1975
|
|
Kurnakovite |
1.487 |
1.527 |
0.036 |
0.036 |
|
|
|
|
|
|
|
|
John Sinkakas, Gemstone and mineral data
book,1972
|
|
Kurnakovite |
1.488 |
1.525 |
0.027 |
0.036 |
1.84 |
1.86 |
1.488 |
1.489 |
|
|
1.515 |
1.525 |
Bestimmungstabellen für Edelsteine, Birgit
Günther, 2008
|
|
Kurnakovite |
1.488 |
1.525 |
0.027 |
0.036 |
1.78 |
1.85 |
1.488 |
1.491 |
|
|
1.515 |
1.525 |
Gemme, Dati per l'identificazione, P. De Stefano
et al, 1993
|
|
Kurnakovite |
1.488 |
1.525 |
0.027 |
0.036 |
1.78 |
1.85 |
1.488 |
1.491 |
1.508 |
1.511 |
1.515 |
1.525 |
http://www.geminterest.com
|
|
Kurnakovite |
1.488 |
1.525 |
0.027 |
0.036 |
1.78 |
1.85 |
|
|
|
|
|
|
http://www.gemmology.be
|
|
Kurnakovite |
1.488 |
1.525 |
0.027 |
0.036 |
1.78 |
1.85 |
1.488 |
1.491 |
1.508 |
1.511 |
1.515 |
1.525 |
Joel Arem, Color Encyclopedia of Gemstones,
1987
|
|
Kurnakovite |
1.488 |
1.525 |
0.027 |
0.036 |
1.78 |
1.85 |
1.488 |
1.491 |
1.508 |
1.511 |
1.515 |
1.525 |
Tables of Gemstone Identification, Roger Dedeyn,
Ivo Quintens, 2007
|
|
Kurnakovite |
1.49 |
1.52 |
0.03 |
0.03 |
1.86 |
1.87 |
1.490 |
1.490 |
1.510 |
1.510 |
1.520 |
1.520 |
Gemmological Tables, Ulrich Henn, 2004
|
|
Kurnakovite |
1.49 |
1.52 |
0.03 |
0.03 |
1.83 |
1.83 |
1.490 |
1.490 |
1.510 |
1.510 |
1.520 |
1.520 |
Gems, R Webster, 5th edition 1994
|
CAUSE OF COLOUR
MINERAL INCLUSIONS
LOCALITIES
CHEMICAL DATA (%)