General Information:
Chemical Formula:
MgBO2(OH)
Composition:
(Molecular Weight = 84.12 gm)
Magnesium 28.89 % Mg
Boron 12.85 % B
Hydrogen 1.20 % H
Oxygen 57.06 % O
Empirical Formula:
MgBO2(OH)
IMA Status:
Approved IMA 1960
Physical Properties:
Cleavage:
None
Color:
white or yellow.
Density:
2.65 - 2.7, Average = 2.67
Diaphaniety:
Transparent to Translucent
Habits:
Nodular - Tuberose forms having irregular protuberances over the surface., Fibrous - Crystals made up of fibers., Earthy - Dull, clay-like texture with no visible crystalline affiniti es, (e.g. howlite).
Hardness:
3-3.5 - Calcite-Copper Penny
Luminescence:
Non-fluorescent.
Luster:
Vitreous - Dull
Streak:
white
More details...