Tan crystal aggregates of the extremely rare new mineral möhnite (IMA 2014-101) from the only known locality worldwide (Pabellon de Pica, Chanabaya, Iquique Province, Tarapacá Region, Chile). It is the ammonium analogue to aphthitalite. Named in honour of the German amateur mineralogist Gerhard Möhn (born 1959). — Photo: David Hospital · CC BY-SA 4.0
Möhnite
Möhnite is an IMA-recognized mineral species in the sulfate class, with the chemical formula (NH₄)K₂Na(SO₄)₂.
It crystallizes in the hexagonal crystal system (space group P-3m1). It is a member of the Aphthitalite structural group.
IMA symbol Möh, IMA status: approved, named in 2014.
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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