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Aside from the overall shape not being traditional- they are very thick with a rough back
and the zoning or cloudiness seen here reflects changes in growth conditions as the crystal formed
A silvery Muscovite matrix is attached along one side
The crystals are translucent to opaque white with a soft pearly luster
Mined from: Ametista do Sul
Pyrite Cluster - Specimen natural barite pyrite Aside from the overall shapeMined from: Ampliacin a Victoria Mine, Navajn, La Rioja, Spain Description: This one of a kind Pyrite cluster mineral specimen from Ambas Aguas, La Rioja, Spain features a compact group of chunky, modified cubic Pyrite crystals with a bright brassy silver metallic finish. The larger crystals have broad flat faces, stepped edges, natural surface lines, and darker reflective side faces that give the piece good contrast. Smaller crystals are packed