Ametista do Sul, Alto Uruguai region, Rio Grande do Sul, South Region, Brazil

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"The world's amethyst capital".
The genesis of amethyst geodes in basalts (Serra Geral Formation) at Ametista do Sul, Brazil, is considered as a two-stage process with an early magmatic protogeode formation and a late, low temperature infill of the cavity.

References:
- Mineralium Deposita (2003) 38 (8), 1009-1025
- Mineralogical Record (2009) 40:121-125 [skunk calcite]

Map Reference: 27°21'39"S , 53°10'55"W

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Mineral List:

Anhydrite
Calcite
Celadonite

'Chalcedony
var: Agate'
Goethite
Gypsum

Lepidocrocite
Quartz
var: Amethyst

8 entries listed. 6 valid minerals.

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