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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 composition of mineral Clairite is indicated by the formula (NH4)2Fe+++3(SO4)4(OH)3•3(H2O). Clairite is usually found forming from the reaction of the oxidation products of pyrite with ammonia produced by the decay of organic matter. This mineral was named for Claire Martini (1936-), South African, wife of the describer of the species, Jacques Edouard Martini. Clairite is also known to crystallize in the triclinic systeemof crystal formation. In optical mineralogy, this triclinic crystal system commonly comprises crystals having three axes, of which all are unequal in length and are positioned oblique to one another. Clairite is usually found with perfect cleavage when evaluated closely with the aid of petrographic polarizing microscopes used in the field of optical mineralogy. Mineral Clairite is usually found yellow in hand sample. The density measure of mineral Clairite is usually found 2.31 grams per cubic centimeters. Most crystals of mineral Clairite are found transparent in appearance. The hardness measure of mineral Clairite is usually found 2 when evaluated using the Mohs scale method. Mineral Clairite is usually found showing biaxial figure with 0.0120 birefringence when evaluated between crossed nicols of polarized microscopes. Mineral Clairite is also found pleochroic showing pale yellow or dark yellow color. Mineral Clairite is also found not radioactive.



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Friday, July 29th, 2011 at 8:55 am
Category:
Optical Mineralogy
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Click Here For Best Selection Of High Quality Polarizing Microscope