Wheatleyite
Wheatleyite is an IMA-recognized mineral species in the organic mineral class, with the chemical formula Na₂Cu(C₂O₄)₂·2H₂O.
It crystallizes in the triclinic crystal system (space group P-1). It is a member of the Oxalate structural group.
Key properties: Mohs hardness 1–2; specific gravity 2.27; Pale blue streak; Vitreous luster; optically biaxial.
IMA symbol Wty, IMA status: approved, named in 1984.
Very rare, on a specimen found on the mine dumps of a Pb–Zn vein deposit.
It is found associated with Sphalerite, galena, cerussite, quartz.
The name is taken from the type locality, the Wheatley mine, Pennsylvania, USA.
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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