LES 7 SYSTEMES CRISTALLINS C. Legrand 2018 c β α a a = b = c Cubique γ α = β = γ = 90° b Galène Tétraédrite Fluorite Almandin b γ a=b=c Rhomboédrique α a c β α = β = γ =/ 90° Arsenic Cinabre Calcite Dioptase c β α d = a = b =/ c Hexagonal d a γ b α = β =...
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LES 7 SYSTEMES CRISTALLINS C. Legrand 2018 c β α a a = b = c Cubique γ α = β = γ = 90° b Galène Tétraédrite Fluorite Almandin b γ a=b=c Rhomboédrique α a c β α = β = γ =/ 90° Arsenic Cinabre Calcite Dioptase c β α d = a = b =/ c Hexagonal d a γ b α = β = 90° γ = 120° Graphite Greenockite Corindon Béryl c β a = b = c α a / Quadratique γ α = β = γ = 90° b Chalcopyrite Rutile Scapolite Analcime c β α a a = / b =/ c Orthorhombique γ α = β = γ = 90° b Bornite Boracite Baryte Bertrandite c β a =/ b =/ c Monoclinique α a γ α = γ = 90° β =/ 120° b Pyrrhotite Monazite Stilbite Neptunite c β a =/ b =/ c Triclinique α a γ α =/ β =/ γ =/ 90° b Turquoise Cyanite Albite Rhodonite
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