The Ultimate Guide to Identifying Precious Stones
This book covers several topics including:
- HOW STONES ARE DISTINGUISHED FROM ONE ANOTHER
- REFRACTION
- DOUBLE REFRACTION ABSORPTION AND DICHROISM
- SPECIFIC GRAVITY
- LUSTER AND OTHER REFLECTION EFFECTS
and much more!
DOWNLOAD THE ULTIMATE GUIDE TO IDENTIFYING PRECIOUS STONES - WILSON GARNER
Aucun commentaire:
Enregistrer un commentaire