|
INVESTIGATIONS
Stone |
RI min |
RI max |
Biref min |
Biref max |
Dens min |
Dens max |
Colour |
Location |
Info |
ne min |
ne max |
no min |
no max |
Spectrum |
UVS |
UVL |
Reference |
Moissanite synthetic |
|
|
|
|
3.16 |
3.16 |
black |
|
a very fine-grained structure, 29ct and 34ct, black diamond imitation |
|
|
|
|
|
inert |
inert |
The Journal of Gemmology 2015 Vol 34, No.5, p399-400 |
Moissanite synthetic |
|
|
|
|
3.187 |
3.187 |
green |
|
0.27ct |
|
|
|
|
|
|
|
ACAM labo |
Moissanite synthetic |
2.648 |
2.691 |
|
|
3.2 |
3.24 |
near colourless to light yellow, green, grey |
|
more than 150 polytypes exsist (also 3C: cubic!), but only 4H and 6H can
be grown in bulk. 6H is the type used as gem; girles frosted, striated |
|
|
|
|
|
|
sometimes orange |
Gems & Gemology 1997 winter p260--275 |
Moissanite synthetic |
2.648 |
2.691 |
0.043 |
0.043 |
3.2 |
3.24 |
near colourless |
|
hardness 9.25 |
|
|
|
|
cut off 425nm |
usually inert to moderate orange |
usually inert to moderate orange |
The Journal of Gemmology 1999 Vol 26, N°7,p425-438 |
Moissanite synthetic |
|
|
|
|
3.21 |
3.21 |
green |
|
0.28ct, doubling facets |
|
|
|
|
|
|
|
ACAM labo |
Moissanite synthetic |
|
|
|
|
3.21 |
3.21 |
brown-yellow, deep green |
|
0.85, 0.99 and 1.90ct |
|
|
|
|
|
inert |
inert |
Gems & Gemology 2016 Summer, p212 |
Moissanite synthetic |
|
|
|
|
3.22 |
3.22 |
pale grey-green |
|
0.90ct, striated finish of the girdle |
|
|
|
|
cutoff at 420 nm |
inert |
very weak orange |
Gems & Gemology 1998 Fall, p216 |
Moissanite synthetic |
|
|
|
|
3.256 |
3.256 |
green |
|
|
|
|
|
|
|
|
|
ACAM labo |
Moissanite synthetic |
2.65 |
2.65 |
|
|
3.3 |
3.3 |
colourless |
|
0.13ct, RI reading gemmeter |
|
|
|
|
|
|
|
ACAM labo |
TABLES
Stone |
RI
min |
RI
max |
Biref
min |
Biref
max |
Dens
min |
Dens
max |
ne
min |
ne
max |
no
min |
no
max |
Reference |
Moissanite synthetic |
2.62 |
2.691 |
0.043 |
0.043 |
3.2 |
3.24 |
2.691 |
2.691 |
2.620 |
2.648 |
Tables of Gemstone Identification, Roger Dedeyn, Ivo
Quintens, 2007 |
Moissanite synthetic |
2.62 |
2.695 |
0.03 |
0.045 |
3.14 |
3.25 |
|
|
|
|
Gemmo.eu 2013 |
Moissanite synthetic |
2.648 |
2.691 |
0.043 |
0.043 |
3.22 |
3.22 |
|
|
|
|
http://www.gemmology.be |
Moissanite synthetic |
2.648 |
2.694 |
0.046 |
0.046 |
3.22 |
3.22 |
|
|
|
|
Bestimmungstabellen für Edelsteine,
Birgit Günther, 2008 |
Moissanite synthetic |
2.65 |
2.69 |
0.043 |
0.043 |
3.21 |
3.23 |
2.690 |
2.690 |
2.650 |
2.650 |
Gemmological Tables, Ulrich Henn,
2004 |
Moissanite synthetic |
2.65 |
2.7 |
0.05 |
0.05 |
3.17 |
3.17 |
|
|
|
|
Tabellen zur Edelstein-Bestimmung,
Pschichholz FGA, 1975 |
Moissanite synthetic |
2.65 |
2.69 |
0.043 |
0.043 |
3.17 |
3.2 |
2.690 |
2.690 |
2.650 |
2.650 |
http://www.geminterest.com |
Moissanite synthetic |
2.65 |
2.69 |
0.038 |
0.055 |
3.22 |
3.22 |
|
|
|
|
Gemology Tools Professional 2010 |
CAUSE OF
COLOUR
CHEMICAL DATA
(%)