Orthocuproplatinum
Orthocuproplatinum is an IMA-recognized mineral species in the native element class, with the chemical formula Pt₃Cu.
It crystallizes in the orthorhombic crystal system (space group Cmmm).
Key properties: Mohs hardness 4; specific gravity 17.866; Gray streak; Metallic luster.
IMA symbol Ocpt, IMA status: approved, named in 2019.
An alluvial grain in a heavy-mineral concentrate.
It is found associated with Hongshiite, calcite.
The name refers to the crystal system and essential chemical components.
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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