Adamast is partially closed. Adamast is today at a gems and minerals fair. Since our range mainly consists of unique gemstones, the webshop is closed today. It is therefore temporarily not possible to pay for items. You can create an account and/or log in and place items in your shopping cart. Your shopping cart will be saved for later purchases.
You can see on our fairs-page which fair we are attending.
Sapphire
Mohs scale
9.0
Specific Gravity
3.95 to 4.03
Refractive Index
1.762 - 1.778
Crystal system
Trigonal
Chemical Composition
Al2O3
Sign of Zodiac (Click on the constellation for more information)