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Feldspar Quartz

Feldspar-rich quartzitic rock metamorphosed arkose aust-agder, norwayidth of sample 19 cmegmatite with graphic granite intergrown quartz and alkali feldspar and plagioclasevje, norwaylkali feldspar in pegmatite nyelv, finnmark, norwayidth of view 50 cmleavelandite is a lamellar variety of almost pure albite.

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