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Minerals - Talc | TerraCollect
Mineral - Talc
Talc
Mg₃[(OH)₂|Si₄O₁₀]
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
Mg₃[(OH)₂|Si₄O₁₀]
Unit Cell
Physical Properties
Hardness
1
Streak
white
Density
Light (<2)
Optical Properties
Color
white
gray
yellow
green
colorless
Birefringence
Luster
Greasy,
Pearly
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
Cleavage
Fracture
Tenacity
triclinic
,
monoclinic
Point Group
Space Group
Habit
leafy,
massive
Formation
Metasomatose, hydrothermal, Metamorphose
Paragenesis
Twinning
Rarity
Very common
Synonyms
Talc
