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Click Here For Best Selection Of High Quality Polarizing Microscope

Click Here For Best Selection Of High Quality Polarizing Microscope

The chemical formula of mineral Biehlite is indicated by (Sb,As)2MoO6. Biehlite is most commonly found associated with angelsite and wulfenite on a fine-grained Cu ore in the oxidation zone of the deposit. Biehlite is also most commonly found at its type of locality at Tsumeb, Namibia. Biehlite was named for Friedrich Karl Bielh (1887-?), who was the first to do scientific work on the mineralization of the Tsumeb deposit. Mineral Biehlite is most commonly found crystallizing in the monoclinic system of crystal formation. In optical mineralogy, the monoclinic system of crystal formation comprises crystals having three axes of unequal lengths. Two of which are usually found in a position that is oblique or not perpendicular to one another. However, both of which are commonly found perpendicular to the third axis.

            Biehlite is most commonly found white in hand sample. Most crystals of this mineral are found translucent in appearance. Most crystals are also found flexible like flexible fragments. The crystal habit of the mineral when it ie evaluated closely under polarized microscope used in the field of optical mineralogy usually includes fibrous crystals made up of fibers. The hardness measure of mineral Biehlite is usually found ranging from 1 to 1.5 when evaluated using the Mohs scale method. Biehlite is most commonly found showing vitreous to silky luster when viewed in reflected light of polarizing microscopes for mineralogists. It is also most commonly found leaving a white streak when rubbed on white porcelain streak plate. This mineral is also commonly found showing biaxial figure when viewed closely between crossed nicols of polarizing microscope used in the field of optical mineralogy. Biehlite is a non-radioactive mineral as evaluated.



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Friday, November 26th, 2010 at 3:49 pm
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Optical Mineralogy
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Click Here For Best Selection Of High Quality Polarizing Microscope