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Melanite

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".

References

Mindat with location data
Scandinavian mineral gallery
Mineral galleries

Categories: Calcium minerals | Iron minerals | Titanium minerals | Silicate minerals

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Melanite". A list of authors is available in Wikipedia.

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