標 本 名: | 電気石, ショール (鉄電気石) (Tourmaline, Variety: Schorl) / 長石（グループ, 斜長石, 曹長石 )
| 化学組成: | NaFe3+2Al6(BO3)3[Si6O18](OH)3(OH) / NaAlSi3O8 | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Chamachhu, Haramosh Mts., Skardu District, Baltistan, Northern Areas, パキスタン (Pakistan) | Here you get 8 undamaged schorl crystals hosted in a beautiful albite matrix. The albite matrix shows perfect clear albite crystal twinned and with luster and striation. 3 Schorl crystals are broken just where they got out of the matrix all others are undamaged and disclosing a termination.
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