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Mineralati

Minerals

Bararite

bararite

(NH4)2SiF6

Bararite: Mineral information, data and localities.

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

Overview

Bararite is a natural form of ammonium fluorosilicate (also known as hexafluorosilicate or fluosilicate). It has chemical formula (NH4)2SiF6 and trigonal crystal structure. This mineral was once classified as part of cryptohalite. Bararite is named after the place where it was first described, Barari in Jharia Coal Field, Dhanbad, India. It is found at the fumaroles of volcanoes (Vesuvius, Italy), over burning coal seams (Barari, India), and in burning piles of anthracite (Pennsylvania, U.S.). It is a sublimation product that forms with cryptohalite, sal ammoniac, and native sulfur.

Scientific references

  1. Bararite — Wikidata. https://www.wikidata.org/wiki/Q3634520 Link
  2. Bararite — Wikipedia. https://en.wikipedia.org/wiki/Bararite Link