General Information:
Chemical Formula:
Ca2(PO4)(OH)·2(H2O) (?)
Composition:
(Molecular Weight = 228.17 gm)
Calcium 35.13 % Ca
Phosphorus 13.58 % P
Hydrogen 2.21 % H
Oxygen 49.09 % O
Empirical Formula:
Ca2(PO4)(OH)·2(H2O)
Environment:
Found with chalcedony and dolomite. An inadequately described species.
IMA Status:
Not IMA Approved
Locality:
Jachymov, Zapadocesky Kraj, Bohemia, Czech Republic.
Name Origin:
Named from the Greek for "equal" and "fracture", in allusion to the cleavage.
Physical Properties:
Cleavage:
[010] Distinct
Color:
colorless or white.
Density:
2.92
Diaphaniety:
Transparent to Translucent
Habits:
Fibrous - Crystals made up of fibers., ,
Hardness:
1.5 - Between Talc and Gypsum
Luster:
Vitreous - Pearly
More details...