SILICATES; NESOSILICATES; GARNET GROUP · ISOMETRIC
Schorlomite
Ca3(Fe3+,Ti)2(Si,Ti)3O12
Hardness
7–7.5
Streak
Colorless
Spec. Gravity
3.8–3.9
System
Isometric
About
Schorlomite is sometimes regarded as a titanium-rich variety of Andradite, but it is recognized by the IMA as a distinct mineral species. Schorlomite is a rare member of the Garnet group, and some specimens labeled as Schorlomite are really just the Melanite form of Andradite. Schorlomite is named for its resemblance to the black Tourmaline mineral Schorl.
Schorlomite is not a common mineral. Its type locality, which has produced good individual crystals, is Magnet Cove, Hot Spring Co., Arkansas. Other localities include Jabal Bou-Agrao, Khénifra Province, Morocco; Tanfit, Ouarzazate Province, Morocco; and Hillesheim, in the Eifel Mountains of Germany.
