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Browse Items (2 total)
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Fluorite
Formula
CaF2
Structure
Non-silicate
Crystal System
Crystal system: cubic
Physical Properties
Colour in hand specimen: extremely variable: colourless, white, yellow, green, blue and purple most commonCleavage: perfect octahedral, up to…
Apatite
Formula
Ca5(PO4)3(OH,F,Cl)
Structure
Non-silicate
Crystal System
Crystal system: hexagonal (-)
Physical Properties
Colour in hand specimen: green, white, yellow, blue brown etc.Hardness: 5
Optical Properties
Colour in plane polarised…