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  2. List of mineral symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_mineral_symbols

    Mineral symbols (text abbreviations) are used to abbreviate mineral groups, subgroups, and species, just as lettered symbols are used for the chemical elements. The first set of commonly used mineral symbols was published in 1983 and covered the common rock-forming minerals using 192 two- or three-lettered symbols. [ 1 ]

  3. Ore - Wikipedia

    en.wikipedia.org/wiki/Ore

    Iron ore (banded iron formation) Manganese ore – psilomelane (size: 6.7 × 5.8 × 5.1 cm) Lead ore – galena and anglesite (size: 4.8 × 4.0 × 3.0 cm). Ore is natural rock or sediment that contains one or more valuable minerals, typically including metals, concentrated above background levels, and that is economically viable to mine and process.

  4. Siderite - Wikipedia

    en.wikipedia.org/wiki/Siderite

    Siderite is a mineral composed of iron(II) carbonate (FeCO 3).Its name comes from the Ancient Greek word σίδηρος (sídēros), meaning "iron".A valuable iron ore, it consists of 48% iron and lacks sulfur and phosphorus.

  5. Galena - Wikipedia

    en.wikipedia.org/wiki/Galena

    Galena is the main ore of lead, used since ancient times, [6] since lead can be smelted from galena in an ordinary wood fire. [7] Galena typically is found in hydrothermal veins in association with sphalerite, marcasite, chalcopyrite, cerussite, anglesite, dolomite, calcite, quartz, barite, and fluorite.

  6. Glossary of chemistry terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemistry_terms

    Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...

  7. Pyromorphite - Wikipedia

    en.wikipedia.org/wiki/Pyromorphite

    Pyromorphite is a mineral species composed of lead chlorophosphate: Pb 5 (P O 4) 3 Cl, sometimes occurring in sufficient abundance to be mined as an ore of lead. [5] Crystals are common, and have the form of a hexagonal prism terminated by the basal planes, sometimes combined with narrow faces of a hexagonal pyramid. [6]

  8. Clarke number - Wikipedia

    en.wikipedia.org/wiki/Clarke_number

    A related term "clarke of concentration" or "concentration clarke", synonym: "concentration factor (mineralogy)", is a measure to see how rich a particular ore is. That is, the ratio between the concentrations of a chemical element in the ore, and its concentration in the whole Earth's crust (i.e. "clarke") [M 1]: 42 [x 8]: 43 .

  9. Scheelite - Wikipedia

    en.wikipedia.org/wiki/Scheelite

    Scheelite is a calcium tungstate mineral with the chemical formula Ca W O 4.It is an important ore of tungsten (wolfram). Scheelite is originally named after Swedish chemist Carl Wilhelm Scheele (1742–1786).