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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 formula of mineral Zircon is indicated by ZrSiO4 or Zirconium Silicate. Zircon is actually a Silicate mineral. It is most commonly used as gemstone and mineral specimen. Zircon is usually found exhibiting nice and splendid microscope appearance when viewed with the aid of polarizing light microscope used in optical mineralogy. Zircon has been used as diamond stimulant for it resembles diamond in luster and fire. Colorless zircons have been mistaken for diamonds by experienced jewelers. Zircon can actually make a very attractive and affordable gemstone. It is usually found in browns and greens but can be heat treated to beautiful blue and golden colors that appear more splendid under polarized microscope used in the field of optical mineralogy. As mineral specimen, Zircon is quite uncommon in most rock shops because attractive specimens are rare. But fine specimens of well shaped zircons are available and are in demand.

             Zircon is usually found brown, red, yellow, green, blue, black and colorless which can be more fascinating when viewed with the aid of polarizing microscope used in the field of optical mineralogy. Zircon is usually found exhibiting adamantine luster when viewed in reflected light of polarizing microscope used in optical mineralogy. Zircon crystals are usually found transparent to translucent in appearance. Zircon is also known to crystallize in the tetragonal system of crystal formation. In optical mineralogy, this tetragonal system comprises crystals having three axes, which are all in a position perpendicular to one another. Two axes are usually found having the same or equal length. The crystal habit of the mineral is usually found dipyramidal and prismatic as described in the field of optical mineralogy. Zircon is usually found showing indistinct cleavage in two directions when viewed closely with the aid of petrographic polarizing microscope for mineralogists. Zircon also shows uneven fracture when viewed under petrographic polarizing microscope used in optical mineralogy. The hardness measure of mineral Zircon when it is evaluated using the Mohs scale method is usually 7.5. The specific gravity measure of the mineral is usually 4.6 to 4.7 grams per cubic centimeters. Zircon is most commonly found leaving a white streak when rubbed on a white porcelain streak plate. Zircon is most commonly associated with biotite, albite, monazite, garnets and xenotime. Zircon is sometimes found fluorescent and is usually form darker crystals that may become radioactive due to impurities of rare earth elements. The index of refraction of mineral Zircon is usually ranging from 1.92 to 2.01. The best field indicators of mineral Zircon usually include density, crystal habit, luster and hardness. Zircon notably occurs at several localities including Russia, Pakistan, Norway, Canada and some areas in USA.



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Tuesday, December 15th, 2009 at 2:55 pm
Category:
The Silicates Mineral Class
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