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Minerals - Hydroboracite | TerraCollect
Mineral - Hydroboracite
Hydroboracite
CaMg[B₃O₄(OH)₃]₂·3H₂O
Chemical Properties
Mineral Class
Borates
Toxicity
none
Formula
CaMg[B₃O₄(OH)₃]₂·3H₂O
Unit Cell
Physical Properties
Hardness
2 - 3
Streak
white
Density
Normal (2-3,5)
Optical Properties
Color
white
yellow
colorless
Birefringence
Luster
Vitreous,
Silky
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Cleavage
Fracture
Tenacity
Point Group
Space Group
Habit
fibrous,
acicular,
prismatic,
radial
Formation
Metasomatose (aus Colemanit)
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Hydroboracite
