Calderite 3.09 ct.
Calderite 3.09 ct.
Calderite
Is a rare Manganese Calcium Iron Aluminum Silicate with formula (Mn2+,Ca)3(Fe3+,Al)2(SiO4)3 and hardness of 6-5-7.It belong to the garnet group and here is mixed in a massive Calderite-Braunite-Hematite matrix. It comes from Schmorrasgrat, Starlera Valley, Ferrera Valley, Grischun / Switzerland.
Size: 10.9x7.9x5.2 mm.
Weight: 3.09 ct.
CODE#10679