Fantappièite
Fantappièite is an IMA-recognized mineral species in the silicate class, with the chemical formula [Na₈₂.₅Ca₃₃K₁₆.₅]Σ₌₁₃₂(Si₉₉Al₉₉O₃₉₆)(SO₄)₃₃·6H₂O.
It crystallizes in the hexagonal crystal system (space group P-3). It is a member of the Cancrinite, Cancrinite-sodalite structural group.
IMA symbol Ftp, IMA status: approved, named in 2008.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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