Mineralogy Database

Portlandite Mineral Data

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General Portlandite Information

Help on Chemical  Formula: Chemical Formula: Ca(OH)2
Help on Composition: Composition: Molecular Weight = 74.09 gm
   Calcium   54.09 %  Ca   75.69 % CaO
   Hydrogen   2.72 %  H    24.31 % H2O
   Oxygen    43.19 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca(OH)2
Help on Environment: Environment: Larnite-spurrite contact rocks and volcanic fumaroles.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1933
Help on Locality: Locality: Scawt Hill, Antrim County, Northern Ireland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named because the material is a common product of hydration of portland cement.
Help on Name Pronunciation: Name Pronunciation: Portlandite + Pronunciation Say PORTLANDITE
Help on Synonym: Synonym: ICSD 15471
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