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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
Chemical Formula: Al₂SiO₅
Pure anatase is clear or white but is more often found similar to this specimen
Weight: 3
Blue Topaz is deceiving rare
Anatase - Brazil Chemical Formula: Al₂SiO₅Anatase is a form of titanium dioxide. Pure anatase is clear or white but is more often found similar to this specimen, dark in color due to impurities found in the crystals. This mineral is always found in sharp, tetragonal systems. The crystal's structure is known as octahedral, but anatase crystals have a longer vertical axis. Anatase is formed synthetically to be used as a semiconductor. Chemical Formula: TiO2 Location: Cuiaba District, Minas
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