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Phosphate

Ludjibaite

Cu₅(PO₄)₂(OH)₄
Crystal systemTriclinic
ClassPhosphate
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Ludjibaite specimen

Ludjibaite Locality: Podlipa and Reinera Mines, Ľubietová (Libetbánya; Libethen) ore belt, Western Slovenské Rudohorie Mts, Banská Bystrica Region , Slovakia ( Locality at mindat.org ) Bluish green spheres and crust of Ludjibaite. Field of view 4 mm. Specimen and photo Leon Hupperichs. — Photo: Leon Hupperichs · CC BY-SA 3.0

Ludjibaite

Ludjibaite is an IMA-recognized mineral species in the phosphate class, with the chemical formula Cu₅(PO₄)₂(OH)₄.

It crystallizes in the triclinic crystal system (space group P-1). It is a member of the Medenbachite structural group.

Key properties: specific gravity 4.36; Pale blue to white streak; Vitreous luster; optically biaxial.

IMA symbol Ldj, IMA status: approved, named in 1987.

A rare mineral found in the oxidized zone of some copper deposits.

It is found associated with Pseudomalachite, libethenite (Ludjiba mine, Congo); pseudomalachite (Lubietová, Slovakia).

The name refers to its occurrence at Ludjiba, Congo.

Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet. Browse more L minerals or help write this entry.