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Arfvedsonite, Quartz, Microcline

Arfvedsonite : [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2, Quartz : SiO2, Microcline : KAlSi3O8
minID: KL1-AHT

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Terminated arfvedsonite polycrystal from quartz core of the pegmatite. This arfvedsonite have in the center pseudomorfic agregate after some unidentified precusor mineral and some small solid "inclusions" of microcline and quartz. Collected in August 2003. Size 75*50mm. Jindřich Kynický collection and photo.

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Photo added: 8th Aug 2007

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