|
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 |
|
Johachidolite |
1.716 |
1.728 |
0.008 |
0.012 |
3.44 |
3.44 |
colourless, light green, yellow and orange |
|
|
1.716 |
1.717 |
1.720 |
1.721 |
1.725 |
1.728 |
|
inert to strong blue |
inert to medium blue |
Contributions to Gemology GRS 2007 Nov N°5 |
|
Johachidolite |
1.717 |
1.725 |
0.006 |
0.008 |
3.23 |
3.67 |
orange, light yellow, very light green, yellow-orange |
Myanmar |
|
1.717 |
1.718 |
|
|
1.724 |
1.725 |
|
|
sometimes weak blue |
Gems & Gemology 2008 fall 246-251 |
|
Johachidolite |
1.717 |
1.724 |
0.007 |
0.007 |
3.45 |
3.45 |
pale yellow |
probably Mogok, Myanmar |
chelsea : yellowish-green, 14ct |
1.717 |
1.717 |
1.720 |
1.720 |
1.724 |
1.724 |
none |
weak blue |
strong whitish blue |
The Journal of Gemmology 1998 Vol 26, N°5, p324-329 |
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 |
|
Johachidolite |
1.71 |
1.73 |
0.005 |
0.014 |
3.38 |
3.43 |
1.710 |
1.719 |
1.717 |
1.726 |
1.718 |
1.730 |
http://www.geminterest.com |
|
Johachidolite |
1.71 |
1.73 |
0.06 |
0.015 |
3.36 |
3.46 |
|
|
|
|
|
|
Gemmo.eu 2019 |
|
Johachidolite |
1.712 |
1.729 |
0.007 |
0.014 |
3.37 |
3.45 |
1.712 |
1.717 |
1.717 |
1.720 |
1.724 |
1.729 |
Tables of Gemstone Identification, Roger Dedeyn, Ivo Quintens, 2007 |
|
Johachidolite |
1.712 |
1.726 |
0.014 |
0.014 |
3.37 |
3.37 |
|
|
|
|
|
|
Gemology Tools Professional 2016 |
|
Johachidolite |
1.717 |
1.724 |
0.007 |
0.007 |
3.45 |
3.45 |
1.717 |
1.717 |
1.720 |
1.720 |
1.724 |
1.724 |
Gemmological Tables, Ulrich Henn,
2004 |
|
Johachidolite |
1.717 |
1.724 |
0.007 |
0.007 |
3.45 |
3.45 |
1.717 |
1.717 |
1.720 |
1.720 |
1.724 |
1.724 |
Michael O'Donoghue, Gems: Their Sources, Descriptions and Identification
(2006), 873pp |
CAUSE OF
COLOUR
MINERAL
INCLUSIONS
|
Inclusion |
Stone |
Reference |
|
phlogopite |
Johachidolite |
Contributions to Gemology N°5 Nov 2007 GRS, p18 |
|
thorianite-uraninite |
Johachidolite |
Contributions to Gemology N°5 Nov 2007 GRS, p18 |
LOCALITIES
CHEMICAL DATA
|
Stone |
Colour |
Locality |
Reference |
SiO2 |
Al2O3 |
MgO |
FeO |
CaO |
Na2O |
B2O3 |
ThO2 |
|
|
Johachidolite |
colourless |
|
|
Contributions to Gemology N°5 Nov 2007 GRS |
0.079 |
23.5 |
0.027 |
0.039 |
28 |
0.002 |
48.2 |
0.063 |
|
Johachidolite |
yellow-orange |
|
|
Contributions to Gemology N°5 Nov 2007 GRS |
0.099 |
23.6 |
0.066 |
0.042 |
27.9 |
0.002 |
48.1 |
0.003 |
|
Johachidolite |
yellow-orange |
|
|
Contributions to Gemology N°5 Nov 2007 GRS |
0.076 |
23.3 |
0.046 |
0.038 |
27.8 |
0.001 |
48.7 |
0.001 |
|
Johachidolite |
yellow-orange |
|
|
Contributions to Gemology N°5 Nov 2007 GRS |
|
24.1 |
0.066 |
0.036 |
28.2 |
0.002 |
47.5 |
0.004 |