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Click Here For Best Selection Of High Quality Polarizing Microscope

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The chemical formula of mineral Aleksite is indicated by PbBi2Te2S2. Aleksite is usually of hydrothermal origin. It is most commonly found at its type of locality in the Alekseev mine, Sutemskii region, Stanovoi Range Russia. The mineral was named after its locality. Aleksite is known to crystallize in the trigonal-hexagonal system of crystal formation. In optical mineralogy, the hexagonal system of crystallization comprises crystals having four axes. Three of which are positioned in a single plane with equal length and are symmetrically spaced. The fourth axis is found to be perpendicular to the other three axes.

            Mineral Aleksite is usually found showing perfect cleavage in one direction when viewed most closely with the aid of petrographic polarizing microscope used in the field of optical mineralogy. Mineral Aleksite is usually found coloreedsteel gray in hand sample. It exhibits very interesting microscope appearance under polarized microscope for mineralogists. Most crystals of Aleksite however are found opaque in appearance. The crystal habit of the mineral as described in the field of optical mineralogy is usually found granular in form. They generally occur as anhedral to subhedral crystal matrix. The hardness measure of the mineral Aleksite when it is evaluated using the Mohs scale method is usually found 2.5. Aleksite is most commonly found exhibiting metallic luster in reflected light of polarized microscope used in optical mineralogy. Aleksite is commonly found showing weak anisotrophism. Its interference color shown is usually light pale gray with slight greenish tint. Mineral Aleksite is a non-radioactive mineral as evaluated.



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Tuesday, March 30th, 2010 at 9:29 am
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Optical Mineralogy
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Click Here For Best Selection Of High Quality Polarizing Microscope