Rubens batista
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4TONS- Curiosidades, Ilustrações e Links para palestras - Pr. Marcelo Augusto de Carvalho

Curiosidades, Ilustrações e Links para palestras - Pr. Marcelo Augusto de Carvalho

Iridescent Chalcopyrite with Dolomite - Sweetwater Mine, Missouri

Normalmente vemos gemas e pedras preciosas no contexto de jóias. E, enquanto elas de fato são incríveis como brincos, anéis e colares, há algo ainda mais bonito sobre eles em sua forma verdadeira e…

Aquamarine specimen from Mount Baldwin Specimen provided by Dave Bunk Photograph provided by Jeff Scovil  The aquamarine was adopted as the official state gemstone on April 30, 1971, by an act of the General Assembly.  Citation: House Bill 1104, 1971; Colorado Revised Statute 24-80-912.

Aquamarine specimen from Mount Baldwin Specimen provided by Dave Bunk Photograph provided by Jeff Scovil The aquamarine was adopted as the official state gemstone on April 30, 1971, by an act of the General Assembly. Citation: House Bill 1104, 1971; Colorado Revised Statute 24-80-912.