Bleasdaleite
Bleasdaleite is an IMA-recognized mineral species in the phosphate class, with the chemical formula Ca₂Cu₅(Bi,Cu)(PO₄)₄(H₂O,OH,Cl)₁₃.
It crystallizes in the monoclinic crystal system (space group C2/m).
Key properties: Mohs hardness 2; specific gravity 2.77; Pale brown streak; Resinous luster; optically biaxial.
IMA symbol Ble, IMA status: approved, named in 1998.
A secondary mineral from cavities in weathered uraniferous granitic pegmatite containing partly oxidized copper sulfide minerals.
The mineral was named to honor the Reverend John I. Bleasdale (1822-1884) for of his promotion of mineralogy in Victoria.
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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