Sengierite is a rare oxide and hydroxide mineral, chemically a

copper Copper is a chemical element; it has symbol Cu (from Latin ) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orang ...

and

uranyl The uranyl ion with the chemical formula has a linear structure with short U–O bonds, indicative of the presence of multiple bonds between uranium and oxygen, with uranium in the oxidation state +6. Four or more ligands may be bound to the u ...

vanadate, belonging to the carnotite group. Its chemical formula is Cu₂(OH)₂ O₂VO₄sub>2·6H₂O. Sengierite was first discovered at the Luiswishi Mine about north of

Lubumbashi Lubumbashi ( , ; former ; former ) is the second-largest Cities of the Democratic Republic of the Congo, city in the Democratic Republic of the Congo, located in the country's southeasternmost part, along the border with Zambia. The capital ...

Katanga Province Katanga was one of the four large provinces created in the Belgian Congo in 1914. It was one of the eleven provinces of the Democratic Republic of the Congo between 1966 and 2015, when it was split into the Tanganyika Province, Tanganyika, Hau ...

in the Democratic Republic of the Congo and was first described in 1949 by Johannes F. Vaes and Paul F. Kerr, the mineral was named after Edgar Sengier (1879–1963), a former director of the Union Minière du Haut Katanga.

References

Bibliography

* Palache, P.; Berman H.; Frondel, C. (1960). "''Dana's System of Mineralogy, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. (Seventh Edition)"'' John Wiley and Sons, Inc., New York, pp. 1047–1048. copper(II) minerals phosphate minerals uranium(VI) minerals {{phosphate-mineral-stub