К минералам

RRUFF #947

Arsenocrandallite

Элементы:CaAlAsOH
Valence:CaAlAs^5+OH

Химия

IMA chemistry:
CaAl3(AsO4)(AsO3OH)(OH)6
Valence chemistry:
CaAl3(As5+O4)(As5+O3OH)(OH)6

Классификация

Crystal systems:
hexagonal
Space groups:
R3m
Structural group:
Alunite-Crandallite
IMA status:
Approved

Происхождение

Country:
Germany
Published:
1980
Oldest age Ma:
387
Paragenetic modes:
Abiotic, Biotic, Primary, Secondary, Stage 4b: Highly evolved igneous rocks, PM34 - Complex granite pegmatites, Stage 7: Great Oxidation Event, PM47 - Low-T subaerial oxidative hydration/weathering

Примечания

Walenta K (1981) Mineralien der Beudantit-Crandallitgruppe aus dem Schwarzwald: Arsenocrandallit und sulfatfreier Weilerit. Schweizerische Mineralogische und Petrographische Mitteilungen 61, 23-35