General Information:
Chemical Formula:
Ca(Mn++,Fe++)5Be4(PO4)6(OH)4·6(H2O)
Composition:
(Molecular Weight = 1,097.90 gm)
Calcium 3.65 % Ca
Manganese 18.76 % Mn
Beryllium 3.28 % Be
Iron 6.36 % Fe
Phosphorus 16.93 % P
Hydrogen 1.47 % H
Oxygen 49.55 % O
Empirical Formula:
CaMn2+3.75Fe2+1.25Be4(PO4)6(OH)4·6(H2O)
Physical Properties:
Cleavage:
[001] Good, [010] Distinct
Color:
light brown, dark brown, olive green, orange red, or red.
Density:
2.934
Hardness:
4.5 - Between Fluorite and Apatite
Streak:
light brown
More details...