D'ansite-(Mn)
D'ansite-(Mn) is an IMA-recognized mineral species in the sulfate class, with the chemical formula Na₂₁Mn(SO₄)₁₀Cl₃.
It crystallizes in the cubic crystal system (space group I-43d). It is a member of the Dansite structural group.
Key properties: specific gravity 2.61; White streak; Vitreous luster.
IMA symbol D'an-Mn, IMA status: approved, named in 2011.
Occurs as encrustations on pyroclastic breccia in volcanic fumaroles.
It is found associated with Halite, aphthitalite.
As the manganese (Mn)-dominant analog of d’ansite.
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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