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Earth lab datasite

Apatite
Phosphate on gilbertite and quartz
hydrous calcium chloride phosphate
Ca5 (PO4)3 F Cl OH ?
Scale bar = 1 centimetre
cleavage: Poor
crystal system: Hexagonal
hardness 5.0
relative density 3.1 - 3.2
Caldbeck Fells, Cumberland
26 E 3