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2011 December | Optical Mineralogy
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Archive for December, 2011. Laquo; Previous Entries. Thursday, December 29th, 2011. The chemical formula of mineral Jurbanite is indicated by Al(SO4)(OH) 5(H2O). this mineral is usually found occurring at secondary crusts in humid tunnels in oxidized portions of sulfide deposits in aluminous rocks. This is apparently deposited directly from mine water at about 27 deg C and 100% humidity. Mineral Jurbanite is commonly found from its type […]. Thursday, December 29th, 2011. Thursday, December 29th, 2011.
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The Sulfides Mineral Class | Optical Mineralogy
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Archive for the 'The Sulfides Mineral Class' Category. Laquo; Previous Entries. Friday, January 15th, 2010. The chemical formula of mineral Bournonite is indicated by CuPbSbS3 or Copper Lead Antimony Sulfide. Bournonite actually belongs to the Sulfides mineral class. Bournonite was first discovered in the year 1805 at the Wheal Boys in the parish of Endellion in Cornwall, England. But before this, Philip Rashleigh first mentioned Bournonite as an ore of […]. The Sulfides Mineral Class. The chemical formu...
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The Halides Mineral Class | Optical Mineralogy
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Archive for the 'The Halides Mineral Class' Category. Laquo; Previous Entries. Wednesday, September 30th, 2009. The chemical formula of mineral Villiaumite is indicated by NaF or Sodium Fluoride. Villiaumite is actually a Halide mineral. It is also rarely cut as gemstone and could actually be found exhibiting nice and interesting microscope appearance when it is viewed with the aid of petrographic polarizing light microscopes used in the field of optical […]. The Halides Mineral Class. The chemical formu...
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Characters Of Minerals In Polarized Light | Optical Mineralogy
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Archive for the 'Characters of Minerals in Polarized Light' Category. The Twinkling Character of Minerals under Polarized Light. Wednesday, February 13th, 2008. Characters of Minerals in Polarized Light. The Pleochroism Character of Minerals under Polarized Light. Wednesday, February 13th, 2008. Characters of Minerals in Polarized Light. The Found Pleochroic Haloes of Minerals under Polarized Light. Wednesday, February 13th, 2008. Certain minerals, otherwise colorless in thin section, show curious circul...
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The Silicates Mineral Class | Optical Mineralogy
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Archive for the 'The Silicates Mineral Class' Category. Laquo; Previous Entries. Friday, January 15th, 2010. The chemical formula of mineral Bytownite is indicated by CaNa(Al,Si)AlSi2O8 or Calcium Sodium Aluminum Silicate. Bytownite is actually a Silicate mineral. Bytownite derived its name from its famous locality, the Bytown, which is now called Ottawa, Ontario, Canada. The name was actually given by T. Thomson in the year 1835. Afterwards, the name Bytownite was […]. The Silicates Mineral Class. The c...
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Minerals Characteristics In Ordinary Transmitted Light | Optical Mineralogy
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Archive for the 'Minerals Characteristics in Ordinary Transmitted Light' Category. The Form Character of Minerals in Ordinary Transmitted Light. Wednesday, February 13th, 2008. Minerals Characteristics in Ordinary Transmitted Light. The Zoning Character of Minerals in Ordinary Transmitted Light. Wednesday, February 13th, 2008. Minerals Characteristics in Ordinary Transmitted Light. The Refractive Index Character of Minerals in Ordinary Transmitted Light. Wednesday, February 13th, 2008. For a full account...
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The Carbonates And Borates Mineral Class | Optical Mineralogy
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Archive for the 'The Carbonates and Borates Mineral Class' Category. Laquo; Previous Entries. Friday, January 15th, 2010. The Carbonates and Borates Mineral Class. Friday, January 15th, 2010. The Carbonates and Borates Mineral Class. Friday, January 15th, 2010. The chemical formula of mineral Borax is indicated by Na2B4O7-10H2O or Hydrated Sodium Borate. Borax is actually a Carbonate mineral. The name of the mineral species Borax is traceable to the Medieval Latin word borax, which comes from the...The c...
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The Native Elements Mineral Class | Optical Mineralogy
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Archive for the 'The Native Elements Mineral Class' Category. Laquo; Previous Entries. Friday, January 15th, 2010. The formula of mineral Bismuth is indicated by Bi or the Elemental Bismuth. Bismuth has an atomic number 83 in the periodic table of elements. Bismuth actually belongs to the Native Elements mineral class. The Native Element mineral class comprises over one hundred known minerals. Bismuth has been known since the ancient times. It was […]. The Native Elements Mineral Class. The chemical form...
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2012 January | Optical Mineralogy
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Archive for January, 2012. Laquo; Previous Entries. Tuesday, January 31st, 2012. The chemical formula of mineral Denningite is indicated by (Mn,Zn)Te2O5. Mineral Denningite is also commonly found occurring at Hydrothermal Au-Te deposit. It can be also found from its type of locality at Moctezuma (Bambolla) mine, 12 km south of Moctezuma, Sonora, Mexico. Mineral Denningite was named for Reynolds McConnell Denning (1916-1967), Professor of Mineralogy, University […]. Tuesday, January 31st, 2012. The chemic...
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2011 September | Optical Mineralogy
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Archive for September, 2011. Laquo; Previous Entries. Friday, September 30th, 2011. The chemical formula of mineral Jeppeite is indicated by (K,Ba)2(Ti,Fe )6O13. Jeppeite is usually found from a large, weathered lamproite plug. This mineral is most commonly found at its type of locality at Wolgidee Hills, West Kimberley district, Western Australia. Jeppeite was named for John Frederick Biccard Jeppe (1920-), geologist of Nedlands, Western Australia, discoverer of […]. Friday, September 30th, 2011. The ch...
