標 本 名: | 青金石 / 金雲母 / 方解石 (Lazurite / Phlogopite Calcite)
| 化学組成: | (Na,Ca)8 [(S,SO4,Cl2 )|Al6Si6O24 ] / KMg3(Si3Al)O10(F,OH)2 / CaCO3 | サ イ ズ: | 68,0 x 59,4 x 41,3
クリスタル: 21,5 x 21,0 mm | 重量: | | 透明: | | 数量: | | 産地: | Sar-e-Sang District, Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, アフガニスタン (Afghanistan) | Fine lazurite cabinet with at least eight fully undamaged crystals in matrix. The crystals disclosing partly very fine deep blue coloration and translucency beneath the surface. The matrix consists hundreds of small white, partly blue diopside crystals. Beautiful well sized specimen from Afghanistan.
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