Mineralogy Database

Yoshiokaite Mineral Data

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General Yoshiokaite Information

Help on Chemical  Formula: Chemical Formula: (Ca8-(x/2)[ ](x/2)Al16-xSixO32)
Help on Composition: Composition: Molecular Weight = 1,245.37 gm
   Calcium   24.14 %  Ca   33.77 % CaO
   Aluminum  32.50 %  Al   61.40 % Al2O3
   Silicon    2.26 %  Si    4.82 % SiO2
   Oxygen    41.11 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca7.5Al15SiO32
Help on Environment: Environment: A metastable phase, as shocked crystal fragments and in devitrified glasses in a regolith breccia. The glass may have resulted from shock melting of alkali anorthite on the ancient lunar highlands.
Help on IMA Status: IMA Status: Approved IMA 1990
Help on Locality: Locality: On the Moon, near the Apollo 14 landing site. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for T. Yoshioka (1935-1983), who studied the synthetic phase.
Help on Name Pronunciation: Name Pronunciation: Yoshiokaite + Pronunciation Say YOSHIOKAITE
Help on Synonym: Synonym: ICSD 69380
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