Geographic Minerals

Microlite: Properties and Occurrences

Microlite: Properties and Occurrences

Microlite is one of the tantalum/niobium oxides that are generally difficult to distinguish. It is a pale-yellow, reddish-brown, or black isometric mineral composed of sodium-calcium tantalum oxide with a small amount of fluorine (Na, Ca)2Ta2O6(O, OH, F). Today it is a name of a group of oxide m.....

Read More »

Pig Iron

Pig Iron

Pig iron, also known as crude iron, is the result of a high-carbon fuel smelting iron ore (also ilmenite) and a reductant such as coke, typically as a flux with limestone. Pig iron, along with silica, manganese, sulphur, phosphorus, titanium, and other dross elements, has a very high carbon conte.....

Read More »

Microcline: Properties and Occurrences

Microcline: Properties and Occurrences

Microcline (KAlSi3O8) is polymorphous with Orthoclase and Sanidine. It is an important igneous rock-forming tectosilicate mineral. It is the form of potassium feldspar that is stable at the lowest temperatures. It is a potassium-rich alkali feldspar. Microcline typically contains minor amounts of.....

Read More »

Iron ore

Iron ore

Iron ores are minerals and rocks from which it is possible to extract metallic iron and their deposits are contained in sedimentary rocks. The ores are typically rich in iron oxides and range from dark grey, bright yellow, or deep purple to rusty red in color. In these deposits, iron oxides are t.....

Read More »

Miargyrite: properties and Occurrences

Miargyrite: properties and Occurrences

Miargyrite is a mineral, a sulfide of silver and antimony with the formula AgSbS2. It is an uncommon silver sulfosalt. It is a dimorph of cuboargyrite. Originally discovered in the Freiberg district of Germany in 1824, it has subsequently been found in many places where silver is mined.  It is a.....

Read More »

Meyerhofferite: Properties and Occurrences

Meyerhofferite: Properties and Occurrences

Meyerhofferite is a mineral [Ca2B6O11.7H2O] consisting of a hydrous calcium borate. It is a hydrated borate mineral of calcium, with the chemical formula Ca2B6O6(OH)10·2H2O, CaB3O3(OH)5·H2O, or Ca2(H3B3O7)2·4H2O. It is a rare mineral that occurs as a minor component in lacustrine borate depo.....

Read More »

Epsomite

Epsomite

Epsomite is most commonly formed by the deposition of material by saline springs as efflorescence on cave walls. It is a mineral of hydrous magnesium sulfate with the MgSO4•7H2O formula. In the orthorhombic system, epsomite crystallizes as rarely discovered acicular or fibrous crystals; the usu.....

Read More »

Polyhalite

Polyhalite

Polyhalite, a mineral sulfate found in deposits of evaporite (K2Ca2Mg(SO4)4•2H2O) that also occurs with anhydrite and halite. It crystallizes in the triclinic system although it is very rare in crystals. Standard habit is fibrous to huge. It is typically colorless, white to gray, although it.....

Read More »

Metazeunerite: Properties and Occurrences

Metazeunerite: Properties and Occurrences

Metazeunerite is an arsenate mineral with a chemical formula of Cu(UO2)2(AsO4)2·8H2O. It is a mineral consisting of a hydrous arsenate of copper and uranium with less water than zeunerite. The origin of this mineral is almost always from the natural dehydration process of zeunerite. It fluoresce.....

Read More »

Halite (Mineral)

Halite (Mineral)

Halite (/ˈhælaɪt/ or /ˈheɪlaɪt/) is a very common and well-known mineral, commonly known as rock salt; its chemical name is sodium chloride (Na Cl). It is present in solid masses, and in the oceans and salt lakes, as a dissolved solution. The mineral is usually colorless or white but can al.....

Read More »

Kieserite

Kieserite

Kieserite (MgSO4·H2O) is the mineral for magnesium sulfate and found in deposits of evaporite. Named for Dietrich Georg Kieser (August 24, 1779, Harburg / Elbe-October 11, 1862, Jena), a German physicist and professor at Jena University. He also worked as a physician at the Heilbad Berka / Ilm t.....

Read More »

Metatorbernite: Properties and Occurrences

Metatorbernite: Properties and Occurrences

Metatorbernite is a mineral Cu(UO2)2(PO4)2.8H2O consisting of a hydrous phosphate of copper and uranium containing less water than torbernite. It is a radioactive phosphate mineral and is a dehydration pseudomorph of torbernite. is a dehydration product of its close cousin, torbernite, hence the .....

Read More »