|
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 |
Amblygonite |
1.608 |
1.63 |
0.022 |
0.022 |
3.04 |
3.04 |
brownish orangy |
|
4.85ct |
|
|
|
|
|
|
no features |
inert |
inert |
GIA Gem Database 33908 |
Amblygonite |
1.61 |
1.636 |
0.026 |
0.026 |
3.033 |
3.033 |
golden yellow |
|
|
1.610 |
1.610 |
1.621 |
1.621 |
1.636 |
1.636 |
|
|
|
Gems & Gemology 1955 Fall, p208-214 |
Amblygonite |
1.61 |
1.635 |
0.025 |
0.025 |
3.08 |
3.08 |
yellowish |
|
0.83 ct |
1.610 |
1.610 |
1.623 |
1.623 |
1.635 |
1.635 |
|
inert |
light green |
ACAM Lab
N° 562 |
Amblygonite |
1.611 |
1.638 |
0.026 |
0.026 |
3.011 |
3.017 |
colourless |
|
|
1.611 |
1.612 |
1.618 |
1.621 |
1.637 |
1.638 |
|
|
|
Gems & Gemology 1955 Fall, p208-214 |
Amblygonite |
1.612 |
1.638 |
0.025 |
0.026 |
3.017 |
3.033 |
pale yellow |
|
|
1.612 |
1.612 |
1.621 |
1.621 |
1.638 |
1.638 |
|
|
|
Gems & Gemology 1955 Fall, p208-214 |
Amblygonite |
1.619 |
1.633 |
0.014 |
0.014 |
3.03 |
3.03 |
brownish yellow |
|
12.18ct, biaxial - |
|
|
|
|
|
|
|
inert |
inert |
GIA Gem Database 33905 |
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 |
Amblygonite |
1.576 |
1.613 |
0.02 |
0.03 |
3.04 |
3.11 |
1.576 |
1.591 |
1.592 |
1.605 |
1.596 |
1.613 |
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
Amblygonite |
1.578 |
1.633 |
0.2 |
0.22 |
2.98 |
3.11 |
1.578 |
1.611 |
|
|
1.598 |
1.633 |
Joel Arem, Color Encyclopedia of Gemstones,
1987 |
Amblygonite |
1.578 |
1.612 |
0.02 |
0.022 |
2.98 |
3.11 |
1.578 |
1.597 |
1.595 |
1.605 |
1.598 |
1.612 |
http://www.geminterest.com |
Amblygonite |
1.578 |
1.636 |
0.02 |
0.027 |
2.98 |
3.11 |
|
|
|
|
|
|
Gemology Tools Professionel 2010 |
Amblygonite |
1.602 |
1.646 |
0.02 |
0.03 |
3 |
3.1 |
1.602 |
1.622 |
|
|
1.626 |
1.646 |
Gemme, Dati per l'identificazione, P. De
Stefano et al, 1993 |
Amblygonite |
1.602 |
1.646 |
0.024 |
0.03 |
3 |
3.1 |
1.602 |
1.622 |
1.610 |
1.631 |
1.636 |
1.646 |
Gemmological Tables, Ulrich Henn,
2004 |
Amblygonite |
1.611 |
1.636 |
0.023 |
0.027 |
2.95 |
3.08 |
|
|
|
|
|
|
Tabellen zur Edelstein-Bestimmung,
Pschichholz FGA, 1975 |
Amblygonite |
1.611 |
1.637 |
0.026 |
0.026 |
3.01 |
3.03 |
|
|
|
|
|
|
Gems, R Webster, 5th edition 1994 |
Amblygonite |
1.612 |
1.638 |
0.026 |
0.026 |
3.02 |
3.04 |
|
|
|
|
|
|
John Sinkakas, Gemstone and mineral data
book,1972 |
Amblygonite |
1.612 |
1.646 |
0.024 |
0.03 |
3 |
3.1 |
|
|
|
|
|
|
Bestimmungstabellen für Edelsteine,
Birgit Günther, 1981 |
CAUSE OF
COLOUR
MINERAL
INCLUSIONS
LOCALITIES