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  2. Limescale - Wikipedia

    en.wikipedia.org/wiki/Limescale

    The type found deposited on the heating elements of water heaters consists mainly of calcium carbonate (CaCO 3). Hard water contains calcium (and often magnesium ) bicarbonate or similar ions. Calcium, magnesium, and carbonate ions dissolve from rocks through which rainwater percolates before collection.

  3. Hydrothermal mineral deposit - Wikipedia

    en.wikipedia.org/wiki/Hydrothermal_mineral_deposit

    Mineral commodities can be classified as metals or non-metals. [2] Metals refer to elements of the periodic table which include base, ferrous, minor fissionable and precious metals. On the other hand, non-metals refer to industrial minerals such as gypsum, diamonds, oil, coal and aggregate. Hydrothermal deposits of economically valuable and ...

  4. Fluid inclusion - Wikipedia

    en.wikipedia.org/wiki/Fluid_inclusion

    The methods of using fluid inclusions to identify mineral deposits include assessing the abundance of a specific inclusion type, looking into variations in the inclusions' temperatures of phase changes during heating and cooling, [2] and variations in other properties such as decrepitation behavior, and inclusions chemistry. [1]

  5. Hot water storage tank - Wikipedia

    en.wikipedia.org/wiki/Hot_water_storage_tank

    Hot water tanks may have a built-in gas or oil burner system, electric immersion heaters. Some types use an external heat exchanger such as a central heating system, or heated water from another energy source. The most typical, in the domestic context, is a fossil-fuel burner, electric immersion elements, or a district heating scheme. [2]

  6. Oilfield scale inhibition - Wikipedia

    en.wikipedia.org/wiki/Oilfield_scale_inhibition

    Oilfield scale inhibition is the process of preventing the formation of scale from blocking or hindering fluid flow through pipelines, valves, and pumps used in oil production and processing. Scale inhibitors (SIs) are a class of specialty chemicals that are used to slow or prevent scaling in water systems.

  7. Factbox-Greenland's rich but largely untapped mineral resources

    www.aol.com/news/factbox-greenlands-rich-largely...

    A 2023 survey showed that 25 of 34 minerals deemed "critical raw materials" by the European Commission were found in Greenland. The extraction of oil and natural gas is banned in Greenland for ...

  8. Hard water - Wikipedia

    en.wikipedia.org/wiki/Hard_water

    A bathtub faucet with built-up calcification from hard water in Southern Arizona. Hard water is water that has a high mineral content (in contrast with "soft water"). Hard water is formed when water percolates through deposits of limestone, chalk or gypsum, [1] which are largely made up of calcium and magnesium carbonates, bicarbonates and sulfates.

  9. How to remove hard water deposits from your faucets and shower

    www.aol.com/remove-hard-water-deposits-faucets...

    Hard water refers to water that contains a high amount of minerals. Water picks up impurities very easily as it moves through the rock and soil. Calcium and magnesium are the main culprits when it ...