|
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 |
|
Chrysocolla |
|
|
|
|
2.34 |
2.5 |
green-blue, dark bluish
green |
Kasiruta,
Indonesia |
chrysocolla
quartz |
|
|
|
|
|
|
|
|
|
The Journal of Gemmology 2006
Vol 30, No3/4 p 155-168 |
|
Chrysocolla |
1.49 |
1.51 |
|
|
2.27 |
2.3 |
blue green,
opaque |
Peru |
silicified, called gem silica
or silicia, hardness 4.5 |
|
|
|
|
|
|
|
|
|
The Journal of Gemmology 2001
Vol 27, N°6, p330-331 |
|
Chrysocolla |
1.54 |
1.57 |
|
|
2.67 |
2.75 |
greenish blue,
opaque |
Peru |
silicified, called gem silica
or silicia, hardness 6 |
|
|
|
|
|
|
|
|
|
The Journal of Gemmology 2001
Vol 27, N°6, p330-331 |
|
chrysocolla
chalcedony |
1.54 |
1.55 |
0.01 |
0.01 |
2.63 |
2.63 |
green-blue and
blue-green |
Acari,
Peru |
|
|
|
|
|
|
|
650nm
cutoff |
inert |
inert |
Gems & Gemology 2010 summer,
p148-149 |
|
chrysocolla
chalcedony |
1.55 |
1.55 |
|
|
2.58 |
2.61 |
light greenish blue to
blue |
Peru |
spot RI, cabochons
(18.07-22.02ct) |
|
|
|
|
|
|
|
chalky bluish
white |
inert |
The Journal of Gemmology 2014
Vol 34/N°1, p9-10 |
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 |
|
Chrysocolla |
1.4 |
1.6 |
|
|
2 |
2.65 |
|
|
|
|
|
|
http://www.geminterest.com
|
|
Chrysocolla |
1.46 |
1.57 |
0.11 |
0.11 |
2 |
2.24 |
|
|
|
|
|
|
Bestimmungstabellen für Edelsteine, Birgit
Günther, 1981
|
|
Chrysocolla |
1.46 |
1.598 |
0.023 |
0.11 |
2 |
2.45 |
1.460 |
1.575 |
|
|
1.570 |
1.598 |
Gemme, Dati per l'identificazione, P. De Stefano
et al, 1993
|
|
Chrysocolla |
1.46 |
1.57 |
0.06 |
0.11 |
1.93 |
2.45 |
|
|
|
|
|
|
Tables of Gemstone Identification, Roger
Dedeyne, Ivo Quintens, 2007
|
|
Chrysocolla |
1.48 |
1.52 |
0.11 |
0.175 |
1.9 |
2.4 |
|
|
|
|
|
|
Gemmo.eu 2014
|
|
Chrysocolla |
1.5 |
1.5 |
0.011 |
0.011 |
2 |
2.45 |
|
|
|
|
|
|
Gems, R Webster, 5th edition 1994
|
|
Chrysocolla |
1.54 |
1.57 |
0.023 |
0.03 |
2.61 |
2.75 |
|
|
|
|
|
|
Tables of Gemstone Identification, Roger
Dedeyne, Ivo Quintens, 2007
|
|
Chrysocolla |
1.575 |
1.635 |
0.023 |
0.05 |
2 |
2.4 |
1.575 |
1.585 |
1.597 |
1.597 |
1.598 |
1.635 |
Gemmological Tables, Ulrich Henn, 2004
|
|
Chrysocolla |
1.575 |
1.635 |
0.023 |
0.04 |
2 |
2.5 |
|
|
|
|
|
|
http://www.gemmology.be
|
|
Chrysocolla |
1.575 |
1.635 |
0.023 |
0.04 |
|
|
|
|
|
|
|
|
Joel Arem, Color Encyclopedia of Gemstones,
1987
|
|
Chrysocolla |
|
|
|
|
2.2 |
2.2 |
|
|
|
|
|
|
John Sinkakas, Gemstone and mineral data
book,1972
|
CAUSE OF COLOUR
|
Stone |
Colour |
Cause of
colour |
Reference |
|
Chrysocolla |
blue |
CuČ+ in octahedral
coordination |
Gems & Gemology Summer
1988 |
MINERAL INCLUSIONS
LOCALITIES
|
STONE |
LOCALITIES |
REFERENCE | |||
|
Chrysocolla |
Kasiruta, NW of Bacan
Island |
Halmahera
Island |
Maluku Utara
Province |
Indonesia |
The Journal of Gemmology
2006-Vol 30, No3/4 p 155 |
CHEMICAL DATA