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About: Bettertonite     Goto   Sponge   NotDistinct   Permalink

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

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

Bettertonite is a mineral of the arsenate category, named after John Betterton. He was a museum geologist and mineralogist at Haslemere Educational Museum in Surrey, England. Bettertonite is a white arsenate mineral with a formula of [Al6(AsO4)3(OH)9(H2O)5]・11H2O. Bettertonite is in the monoclinic system and has a heteropolyhedral layered structure type. It is a natural forming polyoxometalate. Bettertonite forms in clusters of radiating rectangular laths. Laths are thin and usually < 20 μm laterally. Laths are flat on {010}. Bettertonite is similar to penberthycroftyite and it transforms into penberthycroftyite at low temperatures (67-97 ℃).