Blue Zircon from Ratanakiri, Cambodia
| Autor: | Bhuwadol Wanthanachaisaeng, Walter A. Balmer, Manuela Zeug, Lutz Nasdala, Manfred Wildner, Fernando Corfu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: | |
| ISSN: | 1355-4565 |
| Popis: | Zircon from Ratanakiri Province, north-eastern Cambodia, is well known in the gem trade for its vivid blue colour that results from heat treatment. The untreated brown material turns blue under reducing conditions at ~900–1,000°C. Ratanakiri zircon is characterised by remarkably low contents of trace elements. In particular, the actinides have low concentrations (e.g. approximately 120 ppm U and 95 ppm Th). Together with the very young age of the zircon ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|