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Chemical Composition: (Ca,Sr,Pb,Na,K)5([P,As,V,Si]O4)3(FClOH)
Group: Apatite
System: Hexagonal
Family: Phosphates
Hardness: 5
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- Hexagonal, prismatic crystals, elongated or rather stubby
- Poor cleavage parallel to base
- Nonmetallic; vitreous to subresinous luster
- Other colours: green, brown, red or blue
- Heavy, very fragile
- Stable in many environments
- Strong yellow fluorescence in ultraviolet light
- White streak
- Specific gravity 3.16 - 3.22
- Found in: Algeria, Austria, Canada, Chile, Egypt, Germany,
Italy, Mexico, Moracco, Naura, Sweden, South Africa, Tunisia,
Togo, USA, former USSR
- Uses: manufacture of phosphate fertilizer
- Very common
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