Transparent gemstones and the most recent supercontinent cycle

Autor: John M. Saul
Rok vydání: 2017
Předmět:
Zdroj: International Geology Review. 60:889-910
ISSN: 1938-2839
0020-6814
Popis: Certain hard and normally opaque minerals, both rare and common, occasionally crystallize as transparent or partly transparent ‘gem’ crystals. Such stones, designated ‘crystalline coloured ...
Databáze: OpenAIRE