Phase-X Structure Data

Phase-X Structure Data
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Phase-X

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Phase-X_2
Formula: Si2 Mg1.84 Al.06 Cr.02 K6 O7
Name: Phase-X
Unit cell: 5.028 5.028 13.216 90.0 90.0 120.0 , V=289.35
Space group: P63CM (185)

Mancini F , Harlow G E , Cahill C L , American Mineralogist , 87 (2002) p.302-306, The crystal structure and cation ordering of phase-X -, (K1-x-n)2(Mg1-n[Al,Cr]n)2Si2O7H2x: A potential K- and H-bearing, phase in the mantle

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