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Minerals - Cairncrossite | TerraCollect
Mineral - Cairncrossite
Cairncrossite
Sr₂Ca⁷⁻xNa²⁻x(Si₄O₁₀)₄(OH)₂(H₂O)¹⁵⁻x
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
Sr₂Ca⁷⁻xNa²⁻x(Si₄O₁₀)₄(OH)₂(H₂O)¹⁵⁻x
Unit Cell
Physical Properties
Hardness
3
Streak
white
Density
Normal (2-3,5)
Optical Properties
Color
white
colorless
Birefringence
Luster
Vitreous,
Pearly
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
triclinic
Point Group
Cleavage
Fracture
Tenacity
Space Group
Habit
tufty,
spherical,
radial,
tabular
Formation
Metasomatose
Paragenesis
Twinning
Rarity
Rare
Synonyms
Cairncrossite
