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Click Here For Best Selection Of High Quality Polarizing Microscope

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The chemical formula of mineral Zoisite is indicated by Ca2Al3(SiO4)3(OH) or Calcium Aluminum Silicate Hydroxide. Zoisite is actually a Silicate mineral. It is most commonly used as mineral specimen and gemstone as well as ornamental stone. Zoisite is most commonly found showing nice and interested microscope appearance when viewed with the aid of polarized microscope used in the field of optical mineralogy. just like all epidote minerals, Zoisite is a structurally complex mineral having bothe single silicate tetrahedrons and double silicate tetrahedrons. The formula of mineral Zoisite could be expressed in such a way as to reflect this organization.

             Mineral Zoisite is most commonly found in variable color but is usually found green, blue to violet and pink to reddish in color that appear more fascinating when viewed under polarizing microscopes used in the field of optical mineralogy. It is also most commonly found grey, white or brown. Zoisite is also usually found exhibiting vitreous luster when viewed in reflected light of polarized microscope for mineralogists. Zoisite crystals are usually found transparent to translucent in appearance. Zoisite 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 mineral Zoisite as described in the field of optical mineralogy usually include long, somewhat prismatic or tabular crystals with a typically dominant pinacoid that the crystal is often flattened against. It can be found more clearly visible under polarized microscope used in optical mineralogy that the terminations are usually poorly developed. It is also commonly found massive or granular in form when evaluated under petrographic polarizing microscopes used in optical mineralogy. Zoisite is most commonly found showing good cleavage in one direction lengthwise when viewed under petrographic polarizing microscope used in optical mineralogy. Zoisite is also usually found having uneven to conchoidal fracture when viewed under polarized microscope for mineralogists. the hardness measure of the mineral when it is evaluated using the Mohs scale method is usually ranging from 6 to 7. The specific gravity measure of the mineral is approximately 3.3 grams per cubic centimeters. Zoisite is most commonly found leaving a white streak when rubbed on a white porcelain streak plate. Zoisite is commonly found having striated crystals, lengthwise when viewed under polarizing microscope used in optical mineralogy. It is also usually found strongly pleochroic with an index of refraction of 1.68 to 1.72. Zoisite is moste commonly found associated with other interesting minerals including calcite, quartz, andradite, hornblende, biotite, corundum, andradite garnets and other metamorphic minerals. Zoisite notably occurs at several localities including Tanzania, India, Switzerland, Austria and Tennessee, USA.



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Tuesday, December 15th, 2009 at 2:56 pm
Category:
The Silicates Mineral Class
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