Dietzeite
Dietzeite is an IMA-recognized mineral species in the chromate class, with the chemical formula Ca₂(IO₃)₂(CrO₄)·H₂O.
It crystallizes in the monoclinic crystal system (space group P2_1/c).
Key properties: Mohs hardness 3.5; specific gravity 3.62–3.7; optically biaxial.
IMA symbol Die, grandfathered status — known before the IMA’s founding, named in 1894.
Found in nitrate deposits in an arid region.
It is found associated with Lopezite, tarapacáite, ulexite (Oficina Maria Elena, Chile).
The mineral was named to honor August Dietze (?–1893?), German chemist who first described this mineral.
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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