Rio Grande do Sul, Brazil

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


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