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Minerals - Talmessite | TerraCollect
Mineral - Talmessite
Talmessite
Ca₂Mg(AsO₄)₂ · 2H₂O
Chemical Properties
Mineral Class
Arsenates
Toxicity
middle
Formula
Ca₂Mg(AsO₄)₂ · 2H₂O
Unit Cell
Physical Properties
Hardness
5
Streak
white
Density
Normal (2-3,5)
Optical Properties
Color
red
pink
colorless
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
triclinic
Cleavage
Fracture
Tenacity
Point Group
Space Group
Habit
crusty,
spherical,
acicular
Formation
Oxidationszone von Arsen-Lagertsätten (Z.B. Aus Realgar)
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Talmessite
