Melanite
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Melanite | |
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The black mineral is Melanite
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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".