Astrophyllite Structure Data

Astrophyllite Structure Data
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Astrophyllite

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Astrophyllite_4
Formula: Fe6.282 Na.697 (Ti1.538 Nb.462) Si8 (K1.858 Rb.142) O30 F.5 H7
Name: Astrophyllite
Unit cell: 5.3627 11.851 11.668 113.04 94.523 103.093 , V=652.94
Space group: P-1 (2)

Piilonen P C , McDonald A M , Lalonde A E , The Canadian Mineralogist , 41 (2003) p.27-54, Insights into astrophyllite-group minerals II: Crystal chemistry, Note: sample US5, Locality: granitic pegmatite at Mount Rosa, Pikes Peak, Colorado, USA

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