Colourless thin tabular hexagonal crystal of prachařite associated with white sprays of indistinct acicular pharmacolite crystals. Area on co-type specimen NHMW-MIN-O357. White-light photomicrograph Harald Schillhammer — Photo: Harald Schillhammer · CC BY 4.0
Prachařite
Prachařite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula CaSb⁵⁺₂(As³⁺₂O₅)₂O₂·10H₂O.
It crystallizes in the hexagonal crystal system (space group P-3c1).
IMA symbol Pcř, IMA status: approved, named in 2018.
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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