Mineralogy Database

Pectolite Mineral Data

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General Pectolite Information

Help on Chemical  Formula: Chemical Formula: NaCa2Si3O8(OH)
Help on Composition: Composition: Molecular Weight = 332.40 gm
   Sodium     6.92 %  Na    9.32 % Na2O
   Calcium   24.11 %  Ca   33.74 % CaO
   Silicon   25.35 %  Si   54.23 % SiO2
   Hydrogen   0.30 %  H     2.71 % H2O
   Oxygen    43.32 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaCa2(Si3O8)(OH)
Help on Environment: Environment: Secondary mineral in basaltic rocks.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1828
Help on Locality: Locality: Prospect Park quarry, northern New Jersey. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek pektos - "compacted" and lithos - "stone."
Help on Name Pronunciation: Name Pronunciation: Pectolite + Pronunciation Say PECTOLITE
Help on Synonym: Synonym: ICSD 34945
  Larimar - blue
  PDF 33-1223