Schorlomite

Schorlomite is so named in 1846 because of its resemblance to schorl.

Schorlomite forms dark brown, reddish brown to black crystals up to 2 cm, masses are common.

Schorlomite has been cut into black cabochons.
General Information
Chemical Formula
Ca
 
3
Ti
4+
2
(Fe
3+
2
Si)O
 
12
Michael O’Donoghue, Gems, Sixth Edition (2006)
More from other references
Mohs Hardness
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