Vishnevite

Updated on Dec 13, 2024

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Category Tectosilicate Crystal system Hexagonal		Strunz classification 9.FB.05 Space group P63

Formula(repeating unit) (Na,Ca,K)6(Si,Al)12O24[(SO4),(CO3),Cl2]2-4·nH2O Crystal class Pyramidal (6)H-M symbol: (6)

Vishnevite, or sulfatic cancrinite, is a mineral of the cancrinite group with the chemical formula (Na, Ca, K)₆(Si, Al)₁₂O₂₄[(SO₄),(CO₃), Cl₂]_2-4·nH₂O. It has hexagonal crystals.

References

Vishnevite Wikipedia

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