Melanite

From Wikipedia, the free encyclopedia

Melanite

The black mineral is Melanite
General
Category Mineral
Chemical formula CaFeTi(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: CaFeTi(SiO4)3 and is sometimes referred to as "titanian andradite".

[edit] References