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Glaucochroite 
Summary
Glaucochroite is a calcium manganese nesosilicate mineral with formula CaMnSiO4. It occurs in metamorphosed limestones.
| Glaucochroite | |
|---|---|
 Glaucochroite found in New Jersey | |
| General | |
| Category | Silicate mineral |
| Formula (repeating unit) | CaMnSiO4 |
| Strunz classification | 9.AC.05 |
| Dana classification | 51.3.2.3 |
| Crystal system | Orthorhombic |
| Identification | |
| Color | Bluish-gray, pink, brown, or white |
| Fracture | Conchoidal, sub-conchoidal |
| Mohs scale hardness | 6 |
| Luster | Vitreous, sub-vitreous, resinous |
| Streak | white |
| Optical properties | Biaxial (−) |
| References | [1] |
It was first described in 1899 in Franklin Furnace, Sussex County, New Jersey.
References edit
- ^ Glaucochroite at Mindat.org
External links edit
- Webmineral.com
- Handbook of Mineralogy
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