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Archive for May, 2008

Witherite

Wednesday, May 28th, 2008

The chemical formula of mineral Witherite is indicated by BaCO3. Witherite is a Carbonate mineral. It is known to crystallize in the orthorhombic structure. In optical mineralogy, the orthorhombic crystal system comprises crystals having three mutually perpendicular axes, of which all are of different lengths. Mineral Witherite is known to have biaxial negative figure that […]

Strontianite

Wednesday, May 28th, 2008

The chemical formula of mineral Strontianite is indicated by SrCO3. Strontianite is a Carbonate mineral. It is known to crystallize in the orthorhombic system. In optical mineralogy, the orthorhombic crystal system comprises crystals having three mutually perpendicular axes, of which all are of different lengths. Strontianite is known to have biaxial negative figure that can […]

Spinel Series of Minerals

Wednesday, May 28th, 2008

The Spinel Series of minerals includes spinel, pleonaste, hercynite, picotite, gahnite, and galaxite. These minerals are known to crystallize in the isometric system. In optical mineralogy, the isometric system comprises crystals having three axes, all of which are perpendicular to one another and all are found equal in lengths. These members of the Spinel series […]

Siderite

Wednesday, May 28th, 2008

The chemical formula of Siderite is indicated by FeCO3. Siderite is a Carbonate mineral. It is known to crystallize in the hexagonal or trigonal crystal system. In optical mineralogy, the hexagonal system of crystallization comprises crystals having four axes. Three of which are positioned in a single plane with equal length and are symmetrically spaced. […]

Rhodochrosite

Wednesday, May 28th, 2008

The chemical formula of mineral Rhodochrosite is indicated by MnCO3. Rhodochrosite is a Carbonate mineral. It is known to crystallize in the hexagonal or trigonal system. In optical mineralogy, the hexagonal system of crystallization comprises crystals having four axes. Three of which are positioned in a single plane with equal length and are symmetrically spaced. […]

Perovskite

Wednesday, May 28th, 2008

The chemical formula of Perovskite is indicated by CaTiO3. This mineral is known to be pseudoisometric in structure. Sometimes monoclinic and sometimes orthorhombic in crystal system. Perovskite is an Oxide mineral. Perovskite is also an isotropic mineral. In optical mineralogy, isotropic minerals have no power to produce any illumination and they are singly refracting and […]

Magnesite

Wednesday, May 28th, 2008

The chemical formula of Magnesite is indicated by MgCO3. This Magnesite is a Carbonate mineral. It is known to crystallize in the hexagonal or trigonal crystal system. In optical mineralogy, the hexagonal system of crystallization comprises crystals having four axes. Three of which are positioned in a single plane with equal length and are symmetrically […]

Colemanite

Wednesday, May 28th, 2008

The chemical formula of mineral Colemanite is indicated by Ca2B6O11 5H2O. This Colemanite is a Borate mineral. Mineral Colemanite is known to crystallize in the monoclinic system. In optical mineralogy, the monoclinic system of crystal formation comprises crystals having three axes of unequal lengths. Two of which are usually found in a position that is […]

Celestite

Wednesday, May 28th, 2008

The chemical formula of Celestite is indicated by SrSO4. Celestite is a Sulfate mineral. This mineral is known to crystallize in the orthorhombic system. In optical mineralogy, the orthorhombic crystal system comprises crystals having three mutually perpendicular axes, of which all are of different lengths. When viewed under petrographic polarizing light microscope, mineral Celestite is […]

Barite

Wednesday, May 28th, 2008

The chemical formula of Barite is indicated by BaSO4. Barite is a Sulfate mineral. Barite is known to crystallize in the orthorhombic system. In optical mineralogy, the orthorhombic crystal system comprises crystals having three mutually perpendicular axes, of which all are of different lengths. When viewed with the aid of the petrographic polarizing light microscope, […]

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