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Mineralati

Minerals

Bannisterite

bannisterite

(Ca,K,Na)(Mn²⁺,Fe²⁺)10(Si,Al)16O38(OH)8 * nH2O

Bannisterite Mineral Specimen For Sale

Bannisterite Mineral Specimen For Sale — via www.dakotamatrix.com · Source

Overview

Bannisterite is a phyllosilicate mineral named in honor of mineralogist and x-ray crystallographer Dr. Frederick Allen Bannister (1901–1970). It is chemically similar to tamaite, a calcium-dominant member of the ganophyllite group. It was previously identified as ganophyllite in 1936, but it is more structurally related to the stilpnomelane group. It was approved by the IMA in 1967.

Identification characteristics

  • Mohs hardness 4

Scientific references

  1. Bannisterite — Wikidata. https://www.wikidata.org/wiki/Q424817 Link
  2. Bannisterite — Wikipedia. https://en.wikipedia.org/wiki/Bannisterite Link