Rio Grande do Sul, Brazil

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Amethyst crystals up to 10 cm long are found in cavities in basalt rock. The material is lighter in tone than other Brazilian samples, sometimes has brown tinges. - GIA 2019

Gemstone List

Gem list contains entries from all listed localities in region.

Opal var: Fire Opal

Quartz var: Agate

Quartz var: Amethyst

Quartz var: Chalcedony

Localities in this Region

Brazil Rio Grande do Sul Ametista do Sul Erechim Palmeira das Missões Passo Fundo Bela Vista Planalto Salto do Jacuí