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Minerals - Tunellite | TerraCollect
Mineral - Tunellite
Tunellite
SrB₆O₉(OH)₂ · 3H₂O
Chemical Properties
Mineral Class
Borates
Toxicity
none
Formula
SrB₆O₉(OH)₂ · 3H₂O
Unit Cell
Physical Properties
Hardness
2.5
Streak
white
Density
Normal (2-3,5)
Optical Properties
Color
white
colorless
Birefringence
Luster
Vitreous,
Pearly
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Point Group
Cleavage
Fracture
Tenacity
Space Group
Habit
coarse,
massive,
prismatic,
tabular
Formation
Sedimentär, Evaporit
Paragenesis
Twinning
Rarity
Rather rare
Synonyms
Tunellite
