Mineralogy Database

Antigorite Mineral Data

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General Antigorite Information

Help on Chemical  Formula: Chemical Formula: (Mg,Fe++)3Si2O5(OH)4
Help on Composition: Composition: Molecular Weight = 300.77 gm
   Magnesium  18.18 %  Mg   30.15 % MgO
   Iron       13.93 %  Fe   17.92 % FeO
   Silicon    18.68 %  Si   39.95 % SiO2
   Hydrogen    1.34 %  H    11.98 % H2O
   Oxygen     47.88 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg2.25Fe2+0.75(Si2O5)(OH)4
Help on Environment: Environment: Common in regional and contact metamorphosed serpentinites
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1840
Help on Locality: Locality: Antigorio, Italy Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality. From the Latin, serpens - "snake."
Help on Name Pronunciation: Name Pronunciation: Antigorite + Pronunciation Say ANTIGORITE
Help on Synonym: Synonym: Bowenite
  Jenkinsite
  Picrosmine
  Protoantigorite
  Williamsite