|
INVESTIGATIONS
Stone |
RI
min |
RI
max |
Dens
min |
Dens
max |
Colour |
Location |
Info
|
Spectrum |
UVS |
UVL |
Reference |
Hydrogrossular |
1.68 |
1.705 |
3.24 |
3.35 |
pink |
Brits, Transvaal, South Africa |
|
|
|
|
Gemmologie, Zeitschrift der Deutschen
Gemmologischen Gesellschaft 1996 Dec, p189-197 |
Hydrogrossular |
1.69 |
1.705 |
3.298 |
3.342 |
pink |
Transvaal, South Africa |
|
463nm line |
inert |
inert |
Gems & Gemology 1966 summer, p49-57 |
Hydrogrossular |
1.7 |
1.7 |
3.52 |
3.52 |
pink |
|
|
|
|
|
ACAM labo |
Rodingite -Hydrogrossular |
1.71 |
1.73 |
3.4 |
3.47 |
pink, grey, greenish |
Jordanow, Poland |
hardness 6-7, rock composed of 90% massif grossular,
ornamental stone |
|
|
|
Zeitschrift der Deutschen Gemmologischen
Gesellschaft 1988 37, Nr 3/4, p144-145 |
Hydrogrossular |
1.711 |
1.728 |
3.362 |
3.49 |
green |
Transvaal, South Africa |
|
463nm line |
inert |
inert |
Gems & Gemology 1966 summer, p49-57 |
Hydrogrossular |
1.72 |
1.72 |
3.42 |
3.45 |
green, translucent |
|
bangles 339 and 400 ct, jadeite simulant, spot RI |
|
inert |
inert |
Gems & Gemology 2015 Fall, p 342-343 |
Hydrogrossular |
1.725 |
1.734 |
3.44 |
3.54 |
green |
Brits, Transvaal, South Africa |
|
|
|
|
Gemmologie, Zeitschrift der Deutschen
Gemmologischen Gesellschaft 1996 Dec, p189-197 |
TABLES
Stone |
RI
min |
RI
max |
Dens
min |
Dens
max |
Reference |
Hydrogrossular |
1.632 |
1.632 |
2.76 |
2.76 |
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
Hydrogrossular |
1.675 |
1.742 |
3.19 |
3.68 |
Gemme, Dati per l'identificazione, P. De
Stefano et al, 1993 |
Hydrogrossular |
1.675 |
1.705 |
3.27 |
3.27 |
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
Hydrogrossular |
1.68 |
1.712 |
3.25 |
3.4 |
Gemmological Tables, Ulrich Henn,
2004 |
Hydrogrossular |
1.69 |
1.73 |
3.15 |
3.55 |
Gemology Tools Professional 2010 |
Hydrogrossular |
1.69 |
1.73 |
3.24 |
3.55 |
Gemmo.eu 2013 |
Hydrogrossular |
1.702 |
1.702 |
3.35 |
3.35 |
http://www.geminterest.com |
Rodingite -Hydrogrossular |
1.702 |
1.702 |
3.35 |
3.35 |
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
Hydrogrossular |
1.71 |
1.734 |
3.3 |
3.5 |
Gemmological Tables, Ulrich Henn,
2004 |
Hydrogrossular |
1.727 |
1.785 |
3.58 |
3.72 |
http://www.gemmology.be |
Hydrogrossular |
1.728 |
1.735 |
3.42 |
3.6 |
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
Hydrogrossular |
1.738 |
1.744 |
3.63 |
3.69 |
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
Hydrogrossular |
|
|
3.4 |
3.52 |
John Sinkakas, Gemstone and mineral data
book,1972 |
CAUSE OF
COLOUR
Stone |
Colour |
Cause
of colour |
Reference |
Hydrogrossular |
green |
Cr³+ in octahedral coordination |
Gems & Gemology Summer 1988 |
Hydrogrossular |
pink |
Mn³+ in octahedral coordination |
Gems & Gemology Summer 1988 |
MINERAL
INCLUSIONS
Inclusion |
Stone |
Reference |
chromite |
Hydrogrossular |
Gemmologie, 1996 Dez, p196 |
LOCALITIES
CHEMICAL DATA
Stone |
Colour |
Locality |
Reference |
SiO2 |
Al2O3 |
MnO |
MgO |
FeO |
TiO2 |
CaO |
Na2O |
Cr2O3 |
Fe2O3 |
K2O |
|
Hydrogrossular |
green |
Transvaal |
South-Africa |
Gemmologie, Zeitschrift der deutschen
gemmologischen Gesellschaft, 1996, Dec, p192 |
37.82 |
17.69 |
0.04 |
0.04 |
3.92 |
0.18 |
36.37 |
|
2.42 |
|
|
Hydrogrossular |
green |
|
South-Africa |
The Journal of Gemmology
2007,30,5/6,307-319 |
38.64 |
20.05 |
0.24 |
0.01 |
|
0.06 |
37.50 |
|
0.41 |
1.15 |
0.01 |
Hydrogrossular |
pink |
Transvaal |
South-Africa |
Gemmologie, Zeitschrift der deutschen
gemmologischen Gesellschaft, 1996, Dec, p192 |
33.13 |
21.51 |
0.68 |
0.11 |
0.58 |
0.02 |
36.42 |
|
0.01 |
|
|
Hydrogrossular |
pink |
Transvaal |
South-Africa |
Gemmologie, Zeitschrift der deutschen
gemmologischen Gesellschaft, 1996, Dec, p192 |
34.37 |
21.91 |
0.35 |
0.14 |
0.45 |
0.03 |
36.89 |
|
0.01 |
|
|
Hydrogrossular |
pink |
|
South-Africa |
The Journal of Gemmology
2007,30,5/6,307-319 |
36.87 |
20.89 |
0.93 |
0.03 |
|
0.01 |
37.59 |
0.01 |
0.01 |
0.67 |
0.01 |