|
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 |
Azurite |
1.73 |
|
|
|
3.8 |
3.8 |
blue, transparent |
|
2.508ct |
|
|
|
|
|
|
|
|
|
The Journal of Gemmology 1964 N°5,p158 |
Azurite |
1.74 |
|
|
|
3.68 |
3.68 |
blue |
|
cabochon |
|
|
|
|
|
|
|
|
|
ACAM lab
1619 |
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 |
Azurite |
1.72 |
1.848 |
0.108 |
0.11 |
3.7 |
3.9 |
1.720 |
1.740 |
|
|
1.828 |
1.848 |
Gemme, Dati per l'identificazione, P. De
Stefano et al, 1993 |
Azurite |
1.72 |
1.85 |
0.11 |
0.11 |
3.5 |
3.89 |
1.720 |
1.740 |
|
|
1.830 |
1.850 |
Tabellen zur Edelstein-Bestimmung,
Pschichholz FGA, 1975 |
Azurite |
1.72 |
1.846 |
0.106 |
0.106 |
3.8 |
3.8 |
|
|
|
|
|
|
Gemology Tools Professional 2010 |
Azurite |
1.728 |
1.84 |
0.105 |
0.115 |
3.75 |
3.91 |
|
|
|
|
|
|
Gemmo.eu 2013 |
Azurite |
1.73 |
1.848 |
0.108 |
0.11 |
3.7 |
3.9 |
|
|
|
|
|
|
Bestimmungstabellen für Edelsteine,
Birgit Günther, 1981 |
Azurite |
1.73 |
1.838 |
0.108 |
0.108 |
3.7 |
3.9 |
1.730 |
1.730 |
1.758 |
1.758 |
1.838 |
1.838 |
Gemmological Tables, Ulrich Henn,
2004 |
Azurite |
1.73 |
1.838 |
0.108 |
0.11 |
3.7 |
3.9 |
|
|
|
|
|
|
http://www.gemmology.be |
Azurite |
1.73 |
1.84 |
0.105 |
0.111 |
3.7 |
3.9 |
1.730 |
1.730 |
1.758 |
1.758 |
1.836 |
1.840 |
http://www.geminterest.com |
Azurite |
1.73 |
1.836 |
0.11 |
0.11 |
3.77 |
3.77 |
1.730 |
1.730 |
1.758 |
1.758 |
1.836 |
1.836 |
Joel Arem, Color Encyclopedia of Gemstones,
1987 |
Azurite |
1.73 |
1.84 |
0.11 |
0.11 |
3.73 |
3.78 |
|
|
|
|
|
|
John Sinkakas, Gemstone and mineral data
book,1972 |
Azurite |
1.73 |
1.84 |
0.11 |
0.11 |
3.77 |
3.89 |
|
|
|
|
|
|
Gems, R Webster, 5th edition 1994 |
Azurite |
1.73 |
1.84 |
0.108 |
0.11 |
3.7 |
3.9 |
1.730 |
1.730 |
1.754 |
1.758 |
1.828 |
1.840 |
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
CAUSE OF
COLOUR
Stone |
Colour |
Cause
of colour |
Reference |
Azurite |
blue |
Cu²+ in elongated octahedral coordination |
Gems & Gemology Summer 1988 |
MINERAL
INCLUSIONS
LOCALITIES