|
INVESTIGATIONS
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 |
Realgar |
2.538 |
2.704 |
0.166 |
0.166 |
3.56 |
3.56 |
|
|
|
|
|
|
http://www.gemmology.be
|
Realgar |
2.538 |
2.704 |
0.166 |
0.166 |
3.56 |
3.56 |
2.538 |
2.538 |
2.684 |
2.684 |
2.704 |
2.704 |
Joel Arem, Color Encyclopedia of Gemstones,
1987
|
Realgar |
2.538 |
2.704 |
0.166 |
0.166 |
3.5 |
3.5 |
|
|
|
|
|
|
John Sinkakas, Gemstone and mineral data
book,1972
|
Realgar |
2.538 |
2.704 |
0.166 |
0.166 |
3.5 |
3.56 |
2.538 |
2.538 |
2.684 |
2.684 |
2.704 |
2.704 |
http://www.geminterest.com
|
Realgar |
2.538 |
2.704 |
0.166 |
0.166 |
3.56 |
3.56 |
|
|
|
|
|
|
Tables of Gemstone Identification, Roger Dedeyn,
Ivo Quintens, 2007
|
CAUSE OF COLOUR
Stone |
Colour |
Cause of
colour |
Reference |
Realgar |
red |
band theory : metalloid
semi-conductor |
http://toutsurlesgrenats.free.fr |
MINERAL INCLUSIONS
LOCALITIES
CHEMICAL DATA (%)