標 本 名: | トパーズ (Topaz)
| 化学組成: | Al2SiO4(F,OH)2 | サ イ ズ: | | 重量: | | 透明: | | 数量 : | | 産地: | Sakangyi area, west of Mogok, Shan State, ビルマ(ミャンマー) Burma (Myanmar) | This is a fairly unusual Topaz crystal with three very unusual pyramidal- like shaped terminated heads. This specimen is totally doubly terminated. It looks like a mountain range. The topaz shows a lot of interesting growing marks at the surface.
A fine and rare example for the irregular growth of a topaz crystal.
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