Andyrobertsite is a rare, complex arsenate mineral with a blue color. It is found in the Tsumeb mine in Namibia and named after Andrew C. Roberts (b. 1950), mineralogist with the Geological Survey of Canada.

Electric blue; greenish blue in transmitted light. Named in honor of Andrew (Andy) Clifford Roberts (1950-), mineralogist with the Geological Survey of Canada, specialist in documentation of new mineral species, in particular from low-temperature secondary parageneses. ⓘ Tsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia.

F.C. Hawthorne (2000) Highly undersaturated anions in the crystal structure of andyrobertsite – calcio-andyrobertsite, a doubly acid arsenate of the form K(Cd,Ca)[Cu2+ 5(AsO4)4{As(OH)2O2}](H2O)2. Can. Mineral., 38(4), 817-830.

Single specimen found at the mine. Forms a series with calcioandyrobertsite. Tsumeb Mine, Tsumeb, Namibia. Link to MinDat.org Location Data. Named after Andrew C. Roberts (1950-), mineralogist with the Geological Survey of Canada, specialist in documentation of new mineral species, in particular from low-temperature seco ndary parageneses.

Andyrobertsite is a mineral with formula of KCd 2+ Cu 2+ 5 (As 5+ O 4) 4 [As 5+ (OH) 2 O 2]·2H 2 O or KCdCu 5 (AsO 4) 4 [As(OH) 2 O 2]·2H 2 O. The corresponding IMA (International Mineralogical Association) number is IMA1997-022. The IMA symbol is Arb.

2000年8月1日 · Variation in the occupancy of this site gives rise to the two related species andyrobertsite (Cd dominant) and calcio-andyrobertsite (Ca dominant). There is one distinct K site occupied by K and coordinated by four O atoms, two (OH) groups and two (H 2 O) groups in a distorted-cube arrangement.

Highly undersaturated anions in the crystal structure of andyrobertsite - calcio-andyrobertsite, a doubly acid arsenate of the form K(Cd,Ca)[Cu5(AsO4)4{As(OH)2O2}](H2O)2 Authors of publication Cooper, M. A.; Hawthorne, F. C.

1999年5月1日 · Andyrobertsite, ideally KCdCu5 (AsO4)4 [As (OH)2O2] (H2O)2, and calcioandyrobertsite, ideally KCaCu5 (AsO4)4 [As (OH)2O2] (H2O)2, are two new minerals from the Tsumeb mine, Namibia. Both minerals...

The color on this single crystal ranges from a spectacular royal blue (Andyrobertsite) to a beautiful and intense green (Calcio-andyrobertsite), with a superb luster to match. Both are valid species in a series.

Andyrobertsite (Andyrobertsite). 安迪羅伯特斯礦是一種稀有且複雜的銅砷礦石，具有藍色。 在納米比亞的楚梅布礦中發現，並以加拿大地質調查局的礦物學家安德魯·C·羅伯茨（生於1950年）命名。