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The chemical formula of mineral Alumotungstite is indicated by W0.9Al0.1O2.8(OH)0.2. Alumotungstite is originally reported as the aluminum analog for ferritungstite. Alumotungstite is usually found at its type of locality at Kramat Pulai mine, Kinta district, Perak, Malaysia. Mineral Alumotungstite was named for its composition. Mineral Alumotungstite is known to crystallize in the isometric system of crystal formation. In optical mineralogy, this isometric crystal system comprises crystals having three axes, all of which are perpendicular to one another and all are found equal in lengths.

            Alumotungstite is usually found greenish yellow in color and is most often found exhibiting nice and interesting microscope images when viewed with the aid of polarizing microscopes used in the field of optical mineralogy. The crystal habit of mineral Alumotungstite as described in the field of optical mineralogy usually include microscopic crystals that are only made visible when evaluated with the aid of petrographic polarizing light microscopes used in the field of optical mineralogy. Alumotungstite is most commonly found leaving a yellow streak when rubbed on a white porcelain streak plate. Alumotungstite is an isotropic mineral. It is also a non-radioactive mineral as evaluated.



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Sunday, May 30th, 2010 at 6:51 am
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Optical Mineralogy
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