General Information:
Chemical Formula:
Ca5(PO4)3(OH)
Composition:
(Molecular Weight = 502.31 gm)
Calcium 39.89 % Ca
Phosphorus 18.50 % P
Hydrogen 0.20 % H
Oxygen 41.41 % O
Empirical Formula:
Ca5(PO4)3OH
Locality:
Holly Springs, Cherokee County, Georgia, USA.
Name Origin:
Named as the hydroxyl end-member and from the Greek apatao - "I am misleading."
Physical Properties:
Cleavage:
[???] Indistinct
Color:
colorless, white, gray, yellow, or yellowish green.
Density:
3.08
Diaphaniety:
Transparent to Opaque
Habits:
Massive - Granular - Common texture observed in granite and other igneous rock., ,
Hardness:
5 - Apatite
Luster:
Vitreous - Dull
Streak:
white
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