標 本 名: | 緑 柱石, セシウム・"ベリル"（Cesium Beryl）(Vorobyevite)
| 化学組成: | Be3Al2Si6O18 (approx. 3.68 wt% Cs2O / approx. 1,3 wt% Na2O) | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | mines around Khetchel (Khat Che) village, Molo quarter, Momeik Township, ビルマ(ミャンマー) Burma (Myanmar) | This is a very rare cesium bearing cesium beryl. The crystal is doubly terminated only tiny fracture planes visible at one site. Except this no damages are present and you can see multiple twinning. Those specimens are very hard to find, this crystal is from old stock.
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