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The chemical formula of mineral Bonattite is indicated by CuSO4•3(H2O). Bonattite is a known to be a secondary mineral in a pyrite deposit. Bonattite is usually found at its type of locality at [Cantiere Macei,] Capo Calamita, Elba, Italy. This mineral was named for Stefano Bonatti (1902-1968), Italian petrologist, University of Pisa, Pisa, Italy. Mineral Bonattite 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.

            Bonattite is most commonly found colored blue in hand sample which can be more fascinating when viewed closely under polarizing microscopes for mineralogists. The specific gravity measure of mineral Bonattite is usually found 2.68 grams per cubic centimeters. Bonattite is most commonly found leaving a blue white streak when rubbed on a white porcelain streak plate. Mineral Bonattite is commonly found showing biaxial figure when evaluated between crossed nicols of petrographic polarizing microscopes used in the field of optical mineralogy. It is also commonly found showing 0.0640 birefringence. Bonattite is known to be a non-radioactive mineral as evaluated.



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Saturday, February 19th, 2011 at 7:55 am
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Optical Mineralogy
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Click Here For Best Selection Of High Quality Polarizing Microscope