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About: Decrespignyite-(Y)     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : dbo:Mineral, within Data Space : dbpedia.org associated with source document(s)

Type: Thingdul:ChemicalObjectchemical substanceMineralmineral New Facet based on Instances of this Class

Decrespignyite-(Y) is a copper yttrium rare earth carbonate chloride hydrate; With a simple formula of; Cu(Y, REE)4(CO3)4(OH)5Cl · 2H2O Usually found as single pseudohexagonal platelets, often curved, and regularly measuring 10-50μm in size. It appears as royal blue to turquoise blue in colour, with a pale blue streak, and a pearly to vitreous lustre. Regarded as a supergene mineral which is believed to be formed through by mildly carbonated ground waters precipitating through the ore body. It is often associated with malachite, kamphaugite-(Y), donnayite-(Y) and caysichite-(Y)