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The chemical formula of the mineral Amalgam is indicated by Ag2Hg3. Amalgam can be possibly found at base metal ore deposits with oxidisable mercury sulfides. It is most commonly found at its type of locality at Germany and Sweden. Amalgam was named for the medieval Latin word amalgama for a mercury-metal alloy, generally when the other metal is silver. Amalgam is known to crystallize in the isometric system of crystal formation. In optical mineralogy, this isometric crystal system comprises crystals having three axes, all of which are perpendicular to one another and all are found equal in lengths.            Mineral Amalgam is usually found showing indistinct cleavage when viewed with the aid of petrographic polarizing microscope used in the field of optical mineralogy. It is usually found colored white. The specific gravity measure of the mineral is usually found ranging from 13.75 to 14.1 grams per cubic centimeters giving an avergae of 13.92. Most crystals of mineral Amalgam are found opaque in appearance. Amalgam crystals are usually malleable and they deform ranther thatn breaking appart with a hammer. The crystal habit of the mineral usually includes massive forms which appear as uniformly indistinguishable crystals forming as large masses. The hardness measure of mineral Amalgam when it is evaluated using the Mohs scale method is usually ranging from 3 to 3.5. Amalgam is a non-fluorescent mineral. It is also known as a metallic mineral. Amalgam is also non-magnetic and usually found leaving a white streak when rubbed on a white porcelain streak plate. Amalgam is a non-radioactive mineral as evaluated.



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Sunday, May 30th, 2010 at 7:24 am
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Optical Mineralogy
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