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Mineralati

Minerals

Antigorite

antigorite

Mg3Si2O5(OH)4

Antigorite mineral - Stock Image - C008/4196 - Science Photo Library

Antigorite mineral - Stock Image - C008/4196 - Science Photo Library — via www.sciencephoto.com · Source

Overview

Antigorite is a lamellated, monoclinic mineral in the phyllosilicate serpentine subgroup with the ideal chemical formula of (Mg,Fe2+)3Si2O5(OH)4. It is the high-pressure polymorph of serpentine and is commonly found in metamorphosed serpentinites. Antigorite, and its serpentine polymorphs, play an important role in subduction zone dynamics due to their relative weakness and high weight percent of water (up to 13 weight % H2O). It is named after its type locality, the Geisspfad serpentinite, Valle Antigorio in the border region of Italy/Switzerland and is commonly used as a gemstone in jewelry and carvings.

Scientific references

  1. Antigorite — Wikidata. https://www.wikidata.org/wiki/Q2252850 Link
  2. Antigorite — Wikipedia. https://en.wikipedia.org/wiki/Antigorite Link