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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 Cuprite is indicated by Cu2O or Copper Oxide. Cuprite actually belongs to the Oxides and Hydroxides mineral class. Cuprite was first described in the year 1845. The name of the mineral species Cuprite is derived from the Latin word cuprum, which means copper. This is an allusion to its copper content in its chemical composition. Mineral Cuprite is also known as ruby copper by the old miners due to its distinctive red color that is splendidly exhibited under geological polarizing light microscopes. Mineral Cuprite is known to crystallize in the isometric system of crystal formation. In optical mineralogy, this isometric system comprises crystals having three axes, all of which are perpendicular to one another and all are found equal in lengths.


Cuprite is commonly considered as a major ore of copper. And as an ore mineral, Cuprite is commonly found exhibiting interesting microscope images under an ore polarizing light microscope for mineralogists. Cuprite is rarely fashioned for gemstone purposes. Copper ore mineral Cuprite is still mined in many areas around the world. Cuprite actually gives the greatest yield of copper per molecule of all the copper ores except of course for the native copper itself. This is because there is only one oxygen atom to every two copper atoms. And as an interesting mineral specimen, mineral Cuprite usually shows fine and well developed cubic crystal forms, which can be seen clearly visible when viewed with the aid of petrographic polarizing light microscopes used in optical mineralogy. The dark crystals of mineral Cuprite commonly shows internal reflections of the true deep red color inside the almost black crystal, which can be seen clearly visible under polarizing microscope for mineralogists. Other Cuprite varieties like Chalcotrichite often shows tufts of needle like crystals, which commonly display beautiful red color when evaluated under polarized light microscopes used in optical mineralogy. It also exhibits a special sparkle that made them a popular display in ones cabinet of specimens.


            Mineral Cuprite is commonly found showing red to deep red color that could almost appear black when evaluated with the aid of petrographic polarizing light microscope used in optical mineralogy. Mineral Cuprite is also commonly found showing high adamantine luster or submetallic to dull or earthy luster when it is viewed in reflected light of petrographic polarizing microscopes for mineralogists if found in massive form. Mineral Cuprite also shows fair cleavage in four directions forming octahedrons and this can be seen more clearly exhibited when the mineral is viewed with the aid if petrographic polarizing light microscope. Mineral Cuprite also exhibits conchoidal fracture when it is evaluated under several adjustments on the aperture diaphragm of polarizing microscopes used in optical mineralogy. The specific gravity measure of mineral Cuprite usually gives an approximate value of 6 grams per cubic centimeters, which is commonly considered very heavy for translucent minerals. The hardness measure of mineral Cuprite when it is evaluated using the Mohs scale method is commonly found ranging from 3.5 to 4.0. But despite this low hardness of Cuprite, it is still rarely used for gemstone purposes. Cuprite is most commonly found leaving a brick red streak when mineral is rubbed on a white porcelain streak plate.


            Most Cuprite mineral crystals are found transparent to translucent in appearance. The crystal habit of mineral Cuprite as described in optical mineralogy commonly includes cube, octahedron, dodecahedron and combinations of these forms, which usually form very interesting minerals shapes when viewed under polarizing microscopes for geologists. Some Cuprite minerals display faces of the obscure gyroid form that can be very interesting when evaluated under petrographic polarizing microscope used in optical mineralogy. Its common variety called Chalcotrichite forms a long neddle like crystals or fuzzy crusts. Cuprite mineral can be also found in massive form. Cuprite mineral crystals are also brittle a property that is commonly displayed by glasses and most nonmetallic minerals.


            Mineral Cuprite commonly forms a surface film with long exposure to strong light. Cuprite mineral crystals are sometimes altered or partially altered to malachite but rarely copper. Penetration twins can be seen when mineral Cuprite is evaluated on several stage rotation of geological polarizing light microscopes. Cuprite mineral is most often found showing its isotropic feature when viewed under polarized microscope used in optical mineralogy. This means that Cuprite mineral have no power to produce any illumination or they are actually singly refracting and are consequently dark between crossed nicols of petrographic polarizing microscopes for mineralogists. They remain in that condition during the complete rotation of the stage of polarizing microscopes. Since Cuprite is an isotropic mineral, it has no birefringence. There can some areas that may appear anisotropic but usually anomalous. Cuprite mineral is most commonly found exhibiting very high surface relief when it is closely evaluated with the aid if polarizing microscope used in optical mineralogy. The refractive index found for mineral Cuprite when it is evaluated in plane polarized light of polarized microscopes is usually 2.849. Mineral Cuprite also exhibits pleochroism under polarized light microscopes for mineralogists. There is no specific data on the toxicity and health dangers for mineral Cuprite. However, the specimens of this mineral species should be treated with great care and use of sensible precaution is advised upon handling them.


            Mineral Cuprite is commonly associated with other interesting minerals such as limonite, malachite, chrysocolla, copper and many other secondary copper minerals. The best field indicators of mineral Cuprite usually include softness, color and crystal form. Mineral Cuprite is commonly found as an oxidation product of copper sulfide deposits in the upper zones of hydrothermal veins. Mineral Cuprite is actually formed by the weathering of copper sulfide minerals. Mineral Cuprite is usually best developed in desert regions. Cuprite minerals notably occur at some famous mineral localities including Arizona in the United States, Chile, Africa, Australia and several other localities in Europe like Cornwall, England. It can be also found in Tsumeb, Namibia.

Thursday, January 29th, 2009 at 4:07 am
The Oxides and Hydroxides Mineral Class
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Click Here For Best Selection Of High Quality Polarizing Microscope