Gemmological Characteristics of Copal from Sumatra, Indonesia, Resembling 'Root Amber'.
| Autor: | Xueli Tang1, Yan Li1 yanli@cug.edu.cn, Yilei Feng1 |
|---|---|
| Zdroj: | Journal of Gemmology. 2024, Vol. 39 Issue 2, p120-122. 3p. |
| Databáze: | Academic Search Ultimate |
| Externí odkaz: |
|