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Minerals - Charlesite | TerraCollect
Mineral - Charlesite
Charlesite
Ca₆(Al,Si)₂(SO₄)₂B(OH)₄(OH,O)₁₂·26H₂O
Chemical Properties
Mineral Class
Sulphates
Toxicity
none
Formula
Ca₆(Al,Si)₂(SO₄)₂B(OH)₄(OH,O)₁₂·26H₂O
Unit Cell
Physical Properties
Hardness
2.5
Streak
white
Density
Light (<2)
Optical Properties
Color
white
yellow
green
colorless
Birefringence
0.017
Luster
Vitreous,
Waxy
Transparency
translucent,
transparent,
opaque
Pleochroism
Geomineralogical Properties
Crystal System
Groups and Members
Ettringite-Group
Karten-Ebenen
Geologische Karte
Satelliten Karte
Cleavage
Fracture
Tenacity
Brittle
trigonal
Point Group
ditrigonal-pyramidal - 3m
Space Group
P3c1 (158)
Habit
blocky,
prismatic,
Rhombohedron,
Scalenohedron
Formation
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Charlesite
