標 本 名: | 苦土かんらん石 (Forsterite)
| 化学組成: | Mg2[SiO4] | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Dattaw Mine, north of Mogok, ビルマ(ミャンマー) Burma (Myanmar) | Here you get a pretty big slightly green forsterite crystal disclosing a sharp lustrous crystal faces at least at three sides. The mineral has a naturally occurring brittleness; therefore also bigger cut pieces have been quite rare. On the small calcite part a black spinel octahedron is attached. Interesting paragenesis from the Dattaw mine
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