標 本 名: | ジルコン (Zircon)
| 化学組成: | ZrSiO4 | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Gem gravels around Ratnapura, Ratnapura District, Sabaragamuwa Province , スリランカ (Sri Lanka) | Fine dark brown zircon crystal with double terminations. Both ends of fully intact only the prism side disclosing slightly some contact faces. The specimen is slightly radioactive but emits only two to three times of the normal radiation ( 0.5 - 0.6 Microsievert per hour ). You get a fine crystallized specimen.
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