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The chemical formula of the mineral Carbocernaite is indicated by (Ca, Na)(Sr, Ce, Ba)(CO3)2 or Calcium Sodium Strontium Cerium Barium Carbonate. Carbocernaite is actually a Carbonate mineral. Mineral Carbocernaite was actually firs discovered in the year 1961 at Kola Peninsula in Russia. This mineral species was named Carbocernaite reflecting the carbonate (carbo), cerium (cer) and sodium (Na) in its chemical composition. Mineral Carbocernaite is known to crystallize in the orthorhombic system. This crystal system comprises crystals having three mutually perpendicular axes, of which all are of different lengths. Mineral Carbocernaite is most commonly used as a mineral specimen for it exhibits wonderful microscope appearance when viewed under petrographic polarizing light microscope. Mineral Carbocernaite is also considered as a possible source of cerium. This mineral species is a rare mineral that possesses an unusual chemistry. It was actually named relative to its unusual chemistry.

 

Cerium is just one of the several rare earth metals that is considered very important to industry. Burbankite is another closely related mineral to Carbocernaite. The two minerals are actually considered important in the development of the minerals that contain rare earth metal. These minerals are most commonly formed in carbonatite rocks and they are actually being studied for the rare earth metal content. Some pseudomorphs of Carbocernaite and Burbankite are made using some rare earth minerals. Some mineralogists have done this as a testament of how these minerals play a significant role in the development of rare earth minerals. But despite the fact that both minerals contain some rare earth metals in their chemical composition, neither of them is considered as a viable source of these important metals because of their not common enough occurrence in nature.

 

Mineral Carbocernaite is most commonly found in pale yellow color, white, rose, or maybe brown and it commonly exhibits wonderful images when viewed with the aid of the petrographic polarizing light microscopes. Carbocernaite mineral can be also found colorless in thin sections. Carbocernaite commonly exhibits vitreous to greasy luster when evaluated in reflected light of polarizing microscopes for mineralogists. Carbocernaite commonly shows poor cleavage in several directions when it is evaluated under some minor adjustments on the aperture diaphragm of the polarized light microscope but then it is usually not seen. The specific gravity measure of the mineral is commonly found ranging from 3.5 grams per cubic centimeters to 3.6 grams per cubic centimeters, which are considered above average.  The hardness measure of the mineral Carbocernaite when it is evaluated using the Mohs scale method is usually 3. Carbocernaite usually leave a white streak when rubbed on a white porcelain streak plate.

 

            The crystal habit of mineral Carbocernaite commonly includes small subhedral grains that are usually found exhibiting nice and wonderful microscope images when viewed under petrographic polarizing microscope used in optical mineralogy. Carbocernaite is most commonly found exhibiting a high surface relief when it is closely evaluated under several adjustments on the aperture diaphragm of polarized microscopes used in optical mineralogy. Mineral Carbocernaite is commonly found exhibiting a biaxial negative figure when evaluated between crossed nicols of petrographic polarizing microscopes. The maximum birefringence exhibited by the mineral in plane light of geological polarizing microscope is commonly 0.139. The refractive indices of Carbocernaite are usually found ranging from 1.569 to 1.708 when the specimen is evaluated in plane-polarized light of polarizing microscopes for mineralogists. It also exhibits a medium dispersion in transmitted light of polarizing microscopes for geologists. There is no specific data found on the toxicity and health dangers for mineral Carbocernaite. However, the specimens of this mineral species should be treated with great care and use of sensible precautions is advised upon handling them.

 

            Mineral Carbocernaite is commonly associated with several other interesting minerals such as albite, bastnasite, calcite, burbankite, cordylite, ankerite, ancylite-Ce, monazite, parisite, sphene, rhabdophane, cerite pyrophanite, donnayite and synchysite-Ce. The best field indicators of this Carbocernaite mineral usually include locality, crystal habit, luster and color. Mineral Carbocernaite is actually formed to some degree in hydrothermal deposits and nepheline syenites. But they are most commonly found in carbonatite rocks. Carbonatite rocks are actually considered as unusual igneous rock that is composed mostly of the carbonate minerals. Mineral Carbocernaite has limited occurrence at the Weishan Deposit near Jinan City at Shandong Province in China. It can be also found at some other famous mineral localities like the Mont Saint-Hilaire in Quebec, Canada and the type of locality in Vourijarvi in Kola Peninsula, Russia.



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Thursday, August 28th, 2008 at 3:20 am
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The Carbonates and Borates Mineral Class
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