標 本 名: | 長石（グループ）, 正長石 (Feldspar, Variety: Orthoclase)
| 化学組成: | KAlSi3O8 | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Alchuri (Alchori; Aschudi), Shigar Valley, Skardu District, Baltistan, Northern Areas, パキスタン (Pakistan) | Great orthoclase crystal disclosing Manebach twinning! The crystal has a amazing size and shows partly fine luster and sharp edges. No damages apart from the base. You also could call it a phantom orthoclase, because some unidentified green mineral inclusion shows the former size in the transparent interior. Great collector’s item!
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