標 本 名: | ガーネット（ざくろ石） (Garnet), Andradite, Variety: デマントイド (Demantoid)
| 化学組成: | Ca3Fe23+[SiO4]3 | サ イ ズ : | | 重量: | | 透明: | | 数量 : | | 産地: | Panjsher (Panjshir) Valley, Hessa-e-Say District, Panjshir (Panjsheer) Province, Afghanistan | This piece is almost completed terminated a tiny spot at one side discloses just a 2 mm area of crystalline fracture planes, apart from that the surface shows 結晶 crystal striation or cubic growing marks. These specimens are colored by chromium, this one has a fine luster and a green to light green color with a distinctive red viewed under the Chelsea- filter. A great specimen from Afghanistan !
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