Geology and mineralogy of gemming terrains of Sri Lanka
Gemming in Sri Lanka is carried out in river valleys and on hill slopes underlain by high grade Precambrian metasedimentary rock suites. The principal gem mineral, corundum, is mined from assemblages rich in garnet, spinel, topaz, tourmaline and zircon occurring as residual, eluvial or alluvial depo...
Guardat en:
| Autors principals: | , |
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| Format: | Artigo |
| Idioma: | Inglês |
| Publicat: |
Geological Society of Finland
1985-12-01
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| Col·lecció: | Bulletin of the Geological Society of Finland |
| Matèries: | |
| Accés en línia: | http://www.geologinenseura.fi/bulletin/Volume57/sgs_bt_057_pages_139_149.pdf |
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