Goldquarryite
Goldquarryite is an IMA-recognized mineral species in the phosphate class, with the chemical formula CuCd₂Al₃(PO₄)₄F₃·10H₂O.
It crystallizes in the triclinic crystal system (space group P-1).
Key properties: Mohs hardness 3–4; specific gravity 2.78; White streak; Vitreous luster; optically biaxial.
IMA symbol Gqy, IMA status: approved, named in 2001.
A supergene product on and between brecciated and hydrothermally rounded jasperoid fragments lightly cemented by late-stage silicification in a Carlin-type gold deposit.
It is found associated with Opal, carbonate-fluorapatite, hewettite.
The name refers to the quarry where the first specimens were collected.
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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