Amethyst SiO2::Fe+3 - 4.DA.05 (Strunz)(from Minas Gerais, Brasil) This is my collection of Amethys
Amethyst SiO2::Fe+3 - 4.DA.05 (Strunz)(from Minas Gerais, Brasil) This is my collection of Amethysts, which is a variety of quartz, known for its beautiful violet color due to iron inclusions. Before the conquest of America, the amethyst was a beautiful gem, fairly valued, until the deposits were discovered in southern Brazil. In the first picture, we have a Big Druze with a beautiful and solid color from Minas Gerais, in the picture 4, we have a little druze and in the 5th picture , we have a specimen weakly rutilated. The last photo is a gem with a cut oval shaped, very shinny. -- source link
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