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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 Alacranite is indicated by AS8S9. Alacranite most commonly occurs in the Uson caldera, USSR. It has been found from the Alacran deposit at Pampa Larga, Chile. Alacranite was named for its first occurrence in the Alacran deposit, Chile. Alacranite is known to crystallize 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.             Mineral Alacranite is usually found showing indistinct cleavage when evaluated with the aid of petrographic polarizing light microscope used in the field of polarized microscopes for mineralogists. Alacranite is most commonly found colored red or orange yellow in hand sample. It is usually found exhibiting very interesting images when viewed under polarizing microscopes used in optical mineralogy. The specific gravity measure of the mineral is usually found ranging from 3.4 to 3.46 grams per cubic centimeters. Alacranite usually appear transparent in thin section. The crystal habits of the mineral Alacranite usually include equant grains and euhedral crystals. Euhedral crystals usually occur as well-formed crystals showing good external form that appears more fascinating when viewed under polaized microscopes for mineralogists. The hardness measure of the mineral Alacranite when it is evaluated using the Mohs scale method is usually found 1.5. Alacranite is usually found showing adamantine to greasy luster when evaluated in reflected light of petrographic polarizing microscope used in optical mineralogy. Alacranite is most commonly found leaving an orange streak when specimen is rubbed on a white porcelain streak plate. Alacranite is commonly found showing biaxial positive figure when evaluated between crossed nicols of polarized microscope used in optical mineralogy. Alacranite is pleochroic in orange yellow color. The interference color reflected by Alacranite when it is viewed under polarizing microscope usually includes light gray with rose-yellow internal reflections. Mineral Alacranite is a non-radioactive mineral as evaluated.



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Tuesday, March 30th, 2010 at 9:21 am
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Optical Mineralogy
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Click Here For Best Selection Of High Quality Polarizing Microscope