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Minerals - Borax | TerraCollect
Mineral - Borax
Borax
Na₂[B₄O₅(OH)₄]·8H₂O
Chemical Properties
Mineral Class
Borates
Toxicity
none
Formula
Na₂[B₄O₅(OH)₄]·8H₂O
Unit Cell
Physical Properties
Hardness
2 - 2.5
Streak
white
Density
Light (<2)
Optical Properties
Color
yellow
colorless
Birefringence
0.025
Luster
Vitreous,
Resinous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Point Group
Karten-Ebenen
Geologische Karte
Satelliten Karte
Cleavage
Fracture
Tenacity
monoclinic-prismatic - 2/m
Space Group
C2/c (15)
Habit
coarse,
prismatic,
tabular
Formation
Sedimentary (Evaporite)
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Borax
