Wooldridgeite
Wooldridgeite is an IMA-recognized mineral species in the phosphate class, with the chemical formula Na₂CaCu²⁺₂(P₂O₇)₂·10H₂O.
It crystallizes in the orthorhombic crystal system (space group Fdd2).
Key properties: Mohs hardness 2–3; specific gravity 2.279; Very pale blue-green streak; Vitreous luster; optically biaxial.
IMA symbol Woo, IMA status: approved, named in 1997.
A rare weathering product of primary sulfides, the source of phosphorus enigmatic.
It is found associated with Calcite, chalcopyrite, bornite, barite.
The mineral was named to honor James Wooldridge (1923–1995), amateur mineralogist and gemologist, who discovered the 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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