|
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 |
|
Marcasite |
|
|
|
|
4.8 |
4.9 |
|
|
|
|
|
|
Bestimmungstabellen für Edelsteine, Birgit
Günther, 1981
|
|
Marcasite |
|
|
|
|
4.8 |
4.9 |
|
|
|
|
|
|
Gemmological Tables, Ulrich Henn, 2004
|
|
Marcasite |
|
|
|
|
4.8 |
4.9 |
|
|
|
|
|
|
Tabellen zur Edelstein-Bestimmung, Pschichholz
FGA, 1975
|
|
Marcasite |
|
|
|
|
4.85 |
4.9 |
|
|
|
|
|
|
John Sinkakas, Gemstone and mineral data
book,1972
|
|
Marcasite |
|
|
|
|
4.85 |
4.92 |
|
|
|
|
|
|
http://www.geminterest.com
|
|
Marcasite |
|
|
|
|
4.85 |
4.92 |
|
|
|
|
|
|
Joel Arem, Color Encyclopedia of Gemstones,
1987
|
|
Marcasite |
|
|
|
|
4.85 |
4.9 |
|
|
|
|
|
|
Gems, R Webster, 5th edition 1994
|
CAUSE OF COLOUR
MINERAL INCLUSIONS
LOCALITIES
CHEMICAL DATA (%)