schorlomite


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schorlomite

[′shȯr·lə‚mīt]
(mineralogy)
Ca3(Fe,Ti)2(Si,Ti)3O12 A black mineral of the garnet group that has a vitreous luster and usually occurs in masses; hardness is 7-7.5 on Mohs scale, and specific gravity is 3.81-3.88.