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Click Here For Best Selection Of High Quality Polarizing Microscope

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The chemical formula of mineral Aldermanite is indicated by Mg5Al12(PO4)8(OH)22-32(H2O). Aldermanite is most commonly found at Moculata P deposits with fluellite. This mineral is usually found at its type of locality at Angaston, Australia. The mineral was named after Arthur Richard Alderman, a Mineralogists and petrologist, University of Adelaide, Australia. Aldermanite is known to crystallize in the orthorhombic system of crystal formation. In optical mineralogy, this orthorhombic crystal system comprises crystals having three mutually perpendicular axes, of which all are of different lengths.            Mineral Aldermanite is commonly found colorless in hand sample and can be also found showing interesting microscope images when viewed under petrographic polarizing microscopes used in optical mineralogy. They usually appear transparent when cut in thin section. The crystal habit of the mineral as described in the field of optical mineralogy usually includes fibrous formation or crystals made up of fibers. They are also sometimes found in flakes of flat, thin crystals or aggregates that can be found more fascinating when viewed with the aid of polarizing microscopes for mineralogists. The hardness measure of the mineral Aldermanite when it is evaluated using the Mohs scale method is usually found 2. Aldermanite is commonly found showing pearly luster when viewed in reflected light of polarized microscopes for mineralogists. The mineral is most commonly found leaving a white streak when rubbed on a white porcelain streak plate. This mineral is usually found showing biaxial figure when evaluated between crossed nicols of polarized microscopes used in the field of optical mineralogy. Aldermanite is a non-radioactive mineral as evaluated.



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Tuesday, March 30th, 2010 at 9:27 am
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Optical Mineralogy
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Click Here For Best Selection Of High Quality Polarizing Microscope