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The chemical composition of mineral Beaverite is indicated by the formula PbCu++(Fe+++,Al)2(SO4)2(OH)6. Mineral Beaverite is commonly found as a secondary mineral in the oxidized zone of Pb- Cu deposits. Mineral Beaverite is most commonly found at its type of locality at Horn Silver mine, Beaver County, Utah, USA. This mineral was named for the locality. Mineral Beaverite is known to crystallize in the trigonal system of crystal formation.

Mineral Beaverite is most commonly found colored yellow in hand sample when evaluated closely under petrographic polarizing light microscope. The specific gravity measure of mineral Beaverite is usually found 4.36 grams per cubic centimeters. Most crystals of mineral Beaverite are usually found transparent to translucent in appearance. The hardness measure of mineral Beaverite when it is evaluated using the Mohs scale method is usually found ranging from 3.5 to 4.5. Crystals of mineral Beaverite are found non- fluorescent in appearance. Mineral Beaverite is usually found showing vitreous to glassy luster when viewed closely under polarizing microscope used in the field of optical mineralogy. Mineral Beaverite is most commonly found leaving a light yellow streak when rubbed on a white porcelain streak plate. Mineral Beaverite is most commonly found showing uniaxial negative figure when evaluated between crossed nicols of polarizing microscope used in the field of optical mineralogy. Mineral Beaverite is also commonly found showing 0.0200 birefringence. Mineral Beaverite is a non-radioactive mineral as evaluated.



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Sunday, October 24th, 2010 at 3:13 am
Category:
Optical Mineralogy
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