Research Results For 'Gangue'

BARITE

Barite or baryte is major ore of barium. It has a high specific gravity for a light coloured mineral and is a common gangue mineral in hydrothermal veins or as a replacement mineral in veins of limestone and dolomite. It is associated with lead, silver and antimony sulphides. It has the formulae BaSO4 and a relative hardness of 3. It was the first mineral to be found to be luminescent when heated, and led to the discovery of the luminescence of minerals. It is used as an ore of barium, for refining sugar, in the paper industry and as a pigment.
Research Barite

CELESTITE

Celestite (also known as celestine) is a natural sulphate of strontium, so named from its occasional delicate blue colour. It occurs crystallized, also in compact massive and fibrous forms. Celestite is often found disseminated through limestone or sandstone, or lining cavities in such rocks. It is associated with calcite, dolomite, gypsum, sulphur, fluorite and is also found as a gangue mineral in lead veins. It is an important source of strontium and is used to prepare nitrate of strontium for fireworks and tracer bullets, and in the refining of beet sugar. It has the formulae SrSO4 and a relative hardness of 4.
Research Celestite

CHALYBITE

Chalybite, spathic iron ore or spathose iron is an iron carbonate, yellowish-grey to brown in colour. It is a common gangue mineral in metalliferous veins found in the coal measures of England, the Lias beds of Yorkshire, in the USA and in Germany and other places, providing an important ore of iron.
Research Chalybite

GANGUE

A gangue is a mineral substance surrounding a metallic ore in a vein.
Research Gangue

STRONTIANITE

Strontianite is a natural source of strontium, named after Strontian in Argyleshire where it was discivered in 1792 by Hope. Physically it is similar to cerussite and witherite. It is associated with barite, celestite, and calcite in veins in limestone. Occasionally it is found in igneous rocks and as a gangue mineral in sulphide veins. It has the formulae SrCO3 and a relative hardness of 4.
Research Strontianite

SYLVANITE

Sylvanite is a rare ore of gold, silver, and tellurium of a steel grey, silver white, or brass yellow colour, formed in low temperature hydrothermal veins. It often occurs in implanted crystals resembling written characters, and hence is called graphic tellurium. It is associated with calaverite and other tellurides - usually in quartz gangue. It has a relative hardness of 2.
Research Sylvanite

VEIN

In geology a vein is a narrow mass of rock intersecting other rocks, and filling inclined or vertical fissures not corresponding with the stratification. Such mineral ores have usually been deposited from solutions, and may be metallic or non-metallic; as a general rule, the two kinds are found in veins together. The non-valuable mineral deposit in a vein is known as the gangue. Veins are sources of many of the valuable metals, e.g. gold and silver, and vary in size from the almost invisible to several hundred feet in thickness.
Research Vein

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