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Name: Preiswerkite
Pwk
IMA Chemistry: NaAlMg2(Si2Al2)O10(OH)2
Chemistry Elements: The mineral Preiswerkite contains elements:
Sodium (Na)
Aluminum (Al)
Magnesium (Mg)
Silicon (Si)
Oxygen (O)
Hydrogen (H)
Country of Type Locality: Switzerland
Year First Published: 1979
IMA Status: Approved
Status Notes: Keusen H R, Peters T (1980) Preiswerkite, an Al-rich trioctahedral sodium mica from the Geisspfad ultramafic complex (Penninic Alps), American Mineralogist 65, 1134-1137
Structural Group Name: Mica
Fleischer's Group Name: mica-true micas
Crystal Systems: monoclinic
Oldest Known Age: 982 Million Years Ago
More Info: Search Wikipedia: Preiswerkite (Wiki)
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Data appearing on this page is derived from the IMA Database of Mineral Properties. Not all properties are applicable to or available for all minerals.


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