General Information:
Chemical Formula:H3BO3
Composition:(Molecular Weight = 27.82 gm)Boron 38.86 %
B Hydrogen 3.62 %
H Oxygen 57.52 %
O Empirical Formula: B(OH)
Environment:Volcanic fumaroles and hot springs.
Locality:Sasso and the Tuscan lagoons, between Volterra and Massa Marittima, Italy.
Name Origin:Named after its locality.
Physical Properties: Cleavage:[001] Perfect
Color:white, gray, yellow, or brown.
Density:3.3 - 3.5, Average = 3.4
Diaphaniety:Transparent
Habits:Platy - Sheet forms (e.g. micas)., Encrustations - Forms crust-like aggregates on matrix., Tabular - Form dimensions are thin in one direction.
Hardness:1 - Talc
Luminescence:Fluorescent.
Luster:Vitreous - Pearly
Streak:white
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