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The chemical formula of mineral Shattuckite is indicated by Cu5(SiO3)4(OH)2 or Copper Silicate Hydroxide. Shattuckite is actually a Silicate mineral. Shattuckite is considered as a very minor ore of copper and it is also used as an ornamental stone. Shattuckite specimens can be more interesting when viewed with the aid of petrographic polarizing light microscopes used in the field of optical mineralogy. Shattuckite is actually a relatively rare copper silicate mineral. It was actually first discovered in the copper mine called Shattuck Mine at Bisbee, Arizona. The mineral was actually named after the said locality. The beautiful blue color of Shattuckite is its best asset of Shattuckite and it appears more splendidly exhibited when viewed with the aid of polarized microscopes. Shattuckite can actually take a good polished and makes nice cabochons, carvings or simple polished stones. Shattuckite can be also found as attractive aggregates as spherules or sprays of deep blue acicular radial crystal clusters that are more interesting when viewed with the aid of polarized microscope used in optical mineralogy.

             Mineral Shattuckite is most commonly found unique deep blue in color which can be more interesting when viewed with the aid of petrographic polarizing microscopes for mineralogists. Shattuckite is also usually found showing dull to vitreous luster when viewed in reflected light of polarized microscopes used in optical mineralogy. Most specimens of mineral Shattuckite are found translucent to opaque in appearance. Shattuckite is known to crystallize in the orthorhombic system of crystal formation. In optical mineralogy, this orthorhombic crystal system comprises crystals having three mutually perpendicular axes, of which all are of different lengths. The crystal habit of the mineral as described in the field of optical mineralogy usually include acicular to thin prismatic crystals often found as spherules or sprays of acicular radial crystal clusters that could appear more interesting when viewed under polarized microscope. It can be also found massive, compact and fibrous in form. It is also found as pseudomorphs of other secondary minerals such as malachite. 

            Shattuckite is usually found showing perfect cleavage in two directions. It also shows uneven fracture when evaluated under polarized microscopes used in the field of optical mineralogy. Shattuckite is most commonly found leaving a blue streak when specimen is rubbed on a white porcelain streak plate. The specific gravity measure of the mineral is approximately 4.1 grams per cubic centimeters, which is rather heavy for a non-metallic mineral. The best field indicators of mineral Shattuckite usually include associations, color, density, crystal habit and locality. Shattuckite is most commonly found associated with quartz, azurite, limonite, gold, malachite, and many other secondary copper minerals. Shattuckite is a secondary mineral that forms from the alteration of other secondary minerals. It is usually found as a secondary mineral that forms from the alteration of other secondary minerals. It actually forms pseudomorph after malachite ant the Shattuck Mine. In the field of optical mineralogy, a pseudomorph is an atom by atom replacement of a crystal structure by another crystal structure, but with little alteration of the outward shape of the original crystal. Shattuckite has limited occurrence at its type of locality at Shattuck Mine, Bisbee, Arizona, USA and it can be also found at few other secondary copper deposits.

 



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Thursday, July 30th, 2009 at 9:13 am
Category:
The Silicates Mineral Class
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