Salto do Jacuí, Rio Grande do Sul, South Region, Brazil

Major source of agate in the form of geodes occurring in tholeiitic basaltic flows of the Lower Cretaceous Serra Geral Formation.
http://www.lapes.ufrgs.br/Laboratorios/producao_cientif/roberto.html
http://www.museumin.ufrgs.br/MINSaltodoJacui.htm

Mineral List:

	Calcite

	'Chalcedony'

	'var: Agate'

	'Chalcedony var: Onyx'

	Gypsum

	Quartz

	Quartz var: Amethyst

7 entries listed. 3 valid minerals.

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