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Mineralati

Minerals

Bettertonite

bettertonite

Al6(AsO4)3(OH)9·16H2O

Bettertonite: Mineral information, data and localities.

Bettertonite: Mineral information, data and localities. — via www.mindat.org · Source

Overview

Bettertonite is a mineral of the arsenate category, named after John Betterton. He is 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 °C).

Scientific references

  1. Bettertonite — Wikidata. https://www.wikidata.org/wiki/Q19862339 Link
  2. Bettertonite — Wikipedia. https://en.wikipedia.org/wiki/Bettertonite Link