標 本 名: | フッ素燐灰石 (Fluorapatite) / 雲母, 白雲母 (Mica, Variety: Muscovite)
| 化学組成: | Ca5(PO4)3F / KAl2(Si3Al)O10(OH,F)2 | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Laghman (Lagman; Nuristan) Province, アフガニスタン (Afghanistan) | Here you get dozens of violet colored apatite crystals in the feldspar, muscovite matrix. Beside very few tiny damages at the periphery of the specimen none of the crystals is damaged and all disclosing fine luster and typical the basal pinacoid face. This piece has been found five years ago.
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