標 本 名: | ショール (鉄エルバイト(トルマリン)) / フッ素燐灰石 / 白雲母 / ガーネット(ざくろ石), スペッサルティン / 長石(グループ, 斜長石, 曹長石 | 化学組成: | NaFe3+2Al6(BO3)3[Si6O18](OH)3(OH) / Ca5(PO4)3F / KAlSi3O8 / KAl2(Si3Al)O10(OH,F)2 / Mn2+3Al2[SiO4]3 / NaAlSi3O8KAl2(Si3Al)O10(OH,F)2 / | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Shigar Valley, Skardu District, Baltistan, Northern Areas, パキスタン (Pakistan) | Here you get a nice paragenesis: advantage schorl crystal, cleavelandite, apatite, muscovite and tiny spessartine crystals. The cleavelandite shows a fissure, this is evidence for pre-tectonic growth, the schorl crystal healed again while the cleavelandite kept a small gap. The pinkish apatite shows no damage at all and is hosting two tiny spessartine crystals at both ends. The termination of the schorl crystal is composed out of thousands of tiny needle-like crystals and gives the crystal head a velvet like appearance. very fine paragenesis from the Shigar Valley!

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