Melanite

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Melanite

The black mineral is Melanite
General
Category Mineral
Chemical formula Ca3(Fe,Ti)2(SiO4)3.
Identification
Color black
Crystal system cubic
Cleavage none
Mohs Scale hardness 6.5 to 7
Luster vitreous
Refractive index 1.89

Melanite is a variety of the garnet group mineral andradite. It is a deep, glossy black form containing titanium within the chemical formula: Ca3(Fe,Ti)2(SiO4)3, and is sometimes referred to as "titanian andradite".

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