Fluorite & Sphalerite - Unionpedia, the concept map

Baryte

Baryte, barite or barytes is a mineral consisting of barium sulfate (BaSO4).

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Calcite

Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3).

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Cubic crystal system

In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube.

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Cumbria

Cumbria is a ceremonial county in North West England.

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England

England is a country that is part of the United Kingdom.

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Galena

Galena, also called lead glance, is the natural mineral form of lead(II) sulfide (PbS).

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Hermann–Mauguin notation

In geometry, Hermann–Mauguin notation is used to represent the symmetry elements in point groups, plane groups and space groups.

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List of minerals

This is a list of minerals which have Wikipedia articles.

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Mohs scale

The Mohs scale of mineral hardness is a qualitative ordinal scale, from 1 to 10, characterizing scratch resistance of minerals through the ability of harder material to scratch softer material.

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Nanometre

molecular scale. The nanometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: nm), or nanometer (American spelling), is a unit of length in the International System of Units (SI), equal to one billionth (short scale) of a meter (0.000000001 m) and to 1000 picometres.

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Optical relief

Optical relief (usually noted as simply relief) is a visually observable property in optical mineralogy used to identify minerals based on their refractive index.

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Quartz

Quartz is a hard, crystalline mineral composed of silica (silicon dioxide).

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Refractive index

In optics, the refractive index (or refraction index) of an optical medium is a dimensionless number that gives the indication of the light bending ability of that medium.

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Russia

Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia.

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Spain

Spain, formally the Kingdom of Spain, is a country located in Southwestern Europe, with parts of its territory in the Atlantic Ocean, the Mediterranean Sea and Africa.

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Triboluminescence

Triboluminescence is a phenomenon in which light is generated when a material is mechanically pulled apart, ripped, scratched, crushed, or rubbed (see tribology).

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