General Information:
Chemical Formula:
Mg5(BO3)O(OH)5·2(H2O)
Composition:
(Molecular Weight = 376.21 gm)
Magnesium 32.30 % Mg
Boron 5.75 % B
Hydrogen 2.41 % H
Oxygen 59.54 % O
Empirical Formula:
Mg5(BO3)O(OH)5·2(H2O)
Environment:
Metamorphosed limestone.
IMA Status:
Approved IMA 1962
Locality:
Crestmore Quarry, 5 miles NW of Riverside, Riverside Co., California.
Physical Properties:
Cleavage:
[010] Perfect, [100] Distinct
Color:
colorless or light green.
Density:
2.6
Diaphaniety:
Transparent
Hardness:
5.5 - Knife Blade
Luster:
Vitreous (Glassy)
Streak:
white
More details...