|
INVESTIGATIONS
|
Stone |
RI min |
RI max |
Dens min |
Dens max |
Colour |
Location |
Info |
Spectrum |
UVS |
UVL |
Reference |
|
Rhodizite |
1.682 |
1.682 |
3.34 |
3.34 |
colourless |
|
0.15
carat |
|
strong bluish
white |
inert |
ACAM Lab
2296 |
|
Rhodizite |
1.689 |
1.691 |
3.34 |
3.42 |
colourless to greenish yellow
(irradiated: greenish yellow to yellow with strong
saturation) |
Antsongombato,
Madagascar |
anomalous
birefringence |
|
very weak to moderate yellowish
green |
inert to weak yellowish
green |
Gems & Gemology 2002 winter
p326-339 |
|
Rhodizite |
1.689 |
1.689 |
3.54 |
3.54 |
colourless |
Madagascar |
0.4ct |
|
yellow |
|
ACAM Lab
4596 |
|
Rhodizite |
1.689 |
1.689 |
3.315 |
3.315 |
colourless |
Madagascar |
0.21ct |
|
yellow |
|
ACAM Lab
4597 |
TABLES
|
Stone |
RI min |
RI max |
Dens min |
Dens max |
Reference |
|
Rhodizite |
1.689 |
1.694 |
3.34 |
3.44 |
http://www.geminterest.com
|
|
Rhodizite |
1.689 |
1.695 |
3.35 |
3.47 |
Gemmo.eu
|
|
Rhodizite |
1.69 |
1.69 |
3.43 |
3.45 |
John Sinkakas, Gemstone and
mineral data book,1972
|
|
Rhodizite |
1.69 |
1.69 |
3.4 |
3.4 |
Bestimmungstabellen für Edelsteine, Birgit
Günther, 1981
|
|
Rhodizite |
1.69 |
1.694 |
3.34 |
3.44 |
Gemme, Dati per l'identificazione, P. De Stefano
et al, 1993
|
|
Rhodizite |
1.69 |
1.69 |
3.4 |
3.4 |
Gemmological Tables, Ulrich Henn, 2004
|
|
Rhodizite |
1.69 |
1.69 |
3.4 |
3.4 |
Tabellen zur Edelstein-Bestimmung, Pschichholz
FGA, 1975
|
|
Rhodizite |
1.69 |
1.69 |
3.4 |
3.4 |
Gems, R Webster, 5th edition
1994
|
|
Rhodizite |
1.694 |
1.694 |
3.44 |
3.44 |
http://www.gemmology.be
|
|
Rhodizite |
1.694 |
1.694 |
3.44 |
3.44 |
Joel Arem, Color Encyclopedia
of Gemstones, 1987
|
|
Rhodizite |
1.694 |
1.694 |
3.44 |
3.44 |
Tables of Gemstone
Identification, Roger Dedeyne, Ivo Quintens, 2007
|
|
Rhodizite |
1.694 |
1.694 |
3.5 |
3.56 |
Gemology Tools Professional 2010
|
CAUSE OF COLOUR
MINERAL INCLUSIONS
|
Inclusion |
Stone |
Reference |
|
albite |
Rhodizite |
Gems & Gemology 2002 winter p
335 |
|
chambersite |
Rhodizite |
Gems & Gemology 2002 winter p
335 |
|
columbite |
Rhodizite |
Gems & Gemology 2002 winter p
335 |
|
pollucite |
Rhodizite |
Gems & Gemology 2002 winter p
335 |
LOCALITIES
|
STONE |
LOCALITIES |
REFERENCE | |||
|
Rhodizite |
Antsongombato |
Vakinankaratra region (Betafo - Antsirabé
region) |
Antananarivo
Province |
Madagascar |
Gems & Gemology 2002 winter
p326-339 |
CHEMICAL DATA (%)
|
Stone |
Colour |
Locality |
Reference |
Al2O3 |
Na2O |
BeO |
K2O |
Cs2O |
Rb2O |
B2O3 | |
|
Rhodizite -
londonite |
nearly
colourless |
Antsongombato |
Madagascar |
Gems & Gemology 2002 Winter
p326-339 |
25.93 |
0.08 |
15.73 |
2.63 |
5.35 |
1.27 |
48.18 |
|
Rhodizite -
londonite |
greenish
yellow |
Antsongombato |
Madagascar |
Gems & Gemology 2002 Winter
p326-339 |
25.73 |
0.1 |
15.64 |
1.57 |
8.15 |
1.63 |
47.89 |
|
Rhodizite -
londonite |
greenish
yellow |
Antsongombato |
Madagascar |
Gems & Gemology 2002 Winter
p326-339 |
26.92 |
0.14 |
16.13 |
2.28 |
4.59 |
1.14 |
45.53 |
|
Rhodizite -
londonite |
|
Antsongombato |
Madagascar |
Gems & Gemology 2002 Winter
p326-339 |
25.99 |
0.23 |
15.84 |
2.02 |
6.21 |
2.2 |
48.51 |
|
Rhodizite -
londonite |
greenish
yellow |
Antsongombato |
Madagascar |
Gems & Gemology 2002 Winter
p326-339 |
25.87 |
0.16 |
15.75 |
2.34 |
5.43 |
2 |
48.72 |