Mineralogy Database

Hastingsite Mineral Data

Search Webmineral :
  

General Hastingsite Information

Help on Chemical Formula: Chemical Formula: NaCa2(Fe++4Fe+++)Si6Al2O22(OH)2
Help on Composition: Composition: Molecular Weight = 990.86 gm
   Sodium     2.32 %  Na    3.13 % Na2O
   Calcium    8.09 %  Ca   11.32 % CaO
   Aluminum   5.45 %  Al   10.29 % Al2O3
   Iron      28.18 %  Fe   29.00 % FeO /  8.06 % Fe2O3
   Silicon   17.01 %  Si   36.38 % SiO2
   Hydrogen   0.20 %  H     1.82 % H2O
   Oxygen    38.75 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaCa2Fe2+4Fe3+(Si6Al2O22)(OH)2
Help on Environment: Environment: Nepheline-syenite rocks.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1896
Help on Locality: Locality: Dungannon, Hastings Co., Ontario, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Name Pronunciation: Name Pronunciation: Hastingsite + Pronunciation Say HASTINGSITE
Help on Synonym: Synonym: ICSD 200114
  PDF 20-378