Accueil >  Term: chloritoid
chloritoid

A monoclinic or triclinic mineral, (Fe,Mg,Mn)2Al4Si2O10(OH)4; dull green to grayblack; occurs in masses of brittle folia in metamorphosed argillaceous sedimentary rocks. It is related to the brittle micas.

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  • ed.young
  • (Milwaukee, United States)

  •  (V.I.P) 21084 points
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