The chemical formula of mineral Romanechite is indicated by Ba(Mn+2, Mn+4)5O10 – H2O or Hydrated Barium Manganese Oxide. Romanechite actually belongs to the Oxides and Hydroxides mineral class. Mineral Romanechite is also considered as an ore of manganese and it is also most commonly used as mineral specimen for it usually exhibits nice and interesting […]

Mineral Psilomelane has no fixed formula but sometimes it is defined as Ba(Mn+2)(Mn+4)8O16(OH)4 or Barium Manganese Oxide Hydroxide. Psilomelane actually belongs to the Oxides and Hydroxides mineral class. It is most commonly used as an ore of manganese. Mineral Psilomelane is also most commonly used as mineral specimen and it can be seen showing splendid […]

The chemical formula of mineral Valentinite is indicated by Sb2O3 or Antimony Oxide. This Valenitinte actually belongs to the Oxides and Hydroxides mineral class. Valentinite is considered as a minor ore of antimony and it is also most commonly used as mineral specimen. When it is evaluated under petrographic polarizing microscope, Valentinite is most often […]

The chemical formula of mineral Pyrolusite is indicated by MnO2 or Manganese Oxide. This Pyrolusite actually belongs to the Oxides and Hydroxides mineral class. It is considered as a major ore of manganese. It is also most commonly used as mineral specimen and is most often found exhibiting splendid microscope images when viewed under polarized […]

The chemical formula of mineral Pyrochlore is indicated by (Ca, Na)2Nb2O6(O,OH,F) or Calcium Sodium Niobium Oxide Hydroxide Fluoride. Pyrochlore actually belongs to the Oxides and Hydroxides mineral class. Pyrochlore is considered as a very minor ore of niobium and rare earth metals and as mineral specimens. Mineral Pyrochlore is actually one of the tantalum/niobium oxides […]

The chemical formula of mineral Pseudobrookite is indicated by Fe2TiO5 or Iron Titanium Oxide. Mineral Pseudobrookite actually belongs to the Oxides and Hydroxides minerals class. It is also considered as a very minor ore of titanium. It is also most commonly used as mineral specimen and it is most often found exhibiting nice and splendid […]

The chemical formula of mineral Plattnerite is indicated by PbO2 or Lead Oxide. Plattnerite actually belongs to Oxides and Hydroxides mineral class. Plattnerite is also most commonly used as mineral specimen and could actually be seen more fascinatingly exhibited when viewed with the aid of polarizing light microscopes used in the field of optical mineralogy. […]

The chemical formula of mineral Ramsdellite is indicated by MnO2 or Manganese Oxide. This mineral Ramsdellite actually belongs to the Oxides and Hydroxides mineral class. Mineral Ramsdellite is also considered as a minor ore of manganese and it is most commonly found exhibiting interesting microscope images when viewed with the aid of an […]

The chemical formula of mineral Microlite is indicated by (Ca,Na)2Ta2O6(O,OH,F) or Calcium Sodium Tantalum Oxide Hydroxide Fluoride. Microlite belongs to the Oxides and Hydroxides mineral class. It is also a member of the Pyrochlore Group of minerals. Microlite is considered as a very minor ore of tantalum. It is also most commonly used […]

The chemical formula of mineral Alexandrite is indicated by BeAl2O4 or Beryllium Aluminum Oxide. Alexandrite is actually an Oxide mineral. Alexandrite 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. […]