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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 Eakerite is indicated by the formula Ca2SnAl2Si6O18(OH)2•2(H2O). Eakerite mineral was named in honor of Mr. Jack Eaker who was a mining engineer at the Foote lithium Company spodumene mine at King’s Mountain, NC. This mineral is known to crystallize in the monoclinic system of crystal formation. Eakerite has no cleavage display even if it is evaluated closely with the aid of petrographic polarizing microscopes used in the field of optical mineralogy. Most Eakerite are found colorless or white in appearance. It is commonly found fascinating when viewed in reflected light of polarizing microscopes. The specific gravity measure of mineral Eakerite is usually found 2.93 grams per cubic centimeters. Most crystals of mineral Eakerite are found transparent in appearance. Most Eakerite crystals are commonly found exhibiting conchoidal fracture. This fracture is most commonly developed in brittle materials characterized by smoothly curving surfaces just like quartz. The hardness measure of mineral Eakerite is usually found 5.5 when specimen is evaluated using the Mohs scale method. Eakerite is usually found exhibiting vitreous or glassy luster when viewed in reflected light of polarizing microscopes. Eakerite is commonly found leaving white streak when rubbed on white porcelain streak plate. Mineral Eakerite is most commonly found exhibiting biaxial positive figure when evaluated between crossed nicols of polarizing microscopes. It is commonly found exhibiting 0.0160 birefringence. Eakerite is most commonly found non-radioactive after chemical evaluations.



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Monday, January 31st, 2011 at 7:50 am
Category:
Optical Mineralogy
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Click Here For Best Selection Of High Quality Polarizing Microscope