Mineral - Pinnoite
Pinnoite
Chemical Properties
Mineral Class
Borates
Toxicity
none
Formula
MgB₂O₄·3H₂O
Unit Cell
Physical Properties
Hardness
3.5
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
whitecolorless
Birefringence
Luster
Vitreous,
Silky
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
tetragonal
Point Group
Space Group
Habit
coarse, crusty, spherical, massive
Formation
Sedimentär, Evaporit
Paragenesis
Twinning
Rarity
Rare
Synonyms
Pinnoite