General Information:
Chemical Formula:Ca5(PO4)3(OH,F,Cl)
Composition:(Molecular Weight = 509.12 gm)Calcium 39.36 %
CaPhosphorus 18.25 %
P Hydrogen 0.07 %
H Chlorine 2.32 %
ClOxygen 38.76 %
O Fluorine 1.24 %
F Empirical Formula: Ca5(PO4)3OH0.3333F0.3333Cl0.3333
IMA Status:Not IMA Approved
Locality:Common world wide.
Name Origin:Named from the Greek apatao - "I am misleading."
Physical Properties: Cleavage:[0001] Indistinct, [1010] Indistinct
Color:white, yellow, green, red, or blue.
Density:3.16 - 3.22, Average = 3.19
Diaphaniety:Transparent to translucent
Habits:Colloform - Forming from a gel or colloidal mass., Massive - Granular - Common texture observed in granite and other igneous rock., Earthy - Dull, clay-like texture with no visible cr ystalline affinities, (e.g. howlite).
Hardness:5 - Apatite
Luminescence:None.
Luster:Vitreous (Glassy)
Streak:white
More details...
