Hard and high polished, black spinel is a great substitution for black diamonds.
Refraction Index: 1.719 Hardness: 7.5 - 8.0 Specific Gravity: 3.6 - 4.1 Treatment: None Heat Sensitive: None Care: Usually safe for ultrasonic and steam cleaning
Beliefs associated with spinel are protective stones that assist in re-establishing relationships and resolving issues, help the wearer to put their ego aside in devotion to another person.
Metal Clay, safe to fire. Test results; Silver 1200F-1HR-OK, Silver 1475F-1HR-OK, Silver 1650F-2HR OK, Bronze 1525F-2HR-OK, Copper 1778F-30min-OK