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Minerals - Brandtite | TerraCollect
Mineral - Brandtite
Brandtite
CaâMnÂČâș(AsOâ)â · 2HâO
Chemical Properties
Mineral Class
Arsenates
Toxicity
middle
Formula
CaâMnÂČâș(AsOâ)â · 2HâO
Unit Cell
Physical Properties
Hardness
3.5
Streak
white
Density
Normal (2-3,5)
Optical Properties
Color
white
pink
colorless
Birefringence
0.020
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Groups and Members
Kröhnkite-Supergroup
Brandtite-Group
Cleavage
Fracture
Tenacity
Point Group
monoclinic-prismatic - 2/m
Space Group
P2
1
/c (14)
Habit
spherical,
acicular,
prismatic,
rosette,
tabular
Formation
Metasomatose
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Brandtite
