Petrography and chemistry of SiO2 filling phases in the amethyst geodes from the Serra Geral Formation deposit, Rio Grande do Sul, Brazil
- 1 April 2010
- journal article
- Published by Elsevier BV in Journal of South American Earth Sciences
- Vol. 29 (3), 751-760
- https://doi.org/10.1016/j.jsames.2009.10.002
Abstract
No abstract availableKeywords
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