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  2. Mineral dust - Wikipedia

    en.wikipedia.org/wiki/Mineral_dust

    Mineral dust is mainly constituted of the oxides (SiO 2, Al 2 O 3, FeO, Fe 2 O 3, CaO, and others) and carbonates (CaCO 3, MgCO 3) that constitute the Earth's crust.The composition of mineral dust, usually named in atmospheric sciences as mineralogy composition, is relevant for different physical and chemical processes in the atmosphere, for example, oxides with iron have an effect in the ...

  3. Prismatine - Wikipedia

    en.wikipedia.org/wiki/Prismatine

    [2] [3] [4] Prismatine is an orthorhombic-dipyramidal mineral containing aluminium, boron, fluorine, hydrogen, iron, magnesium, oxygen, and silicon. It forms a solid solution series with kornerupine .

  4. Ametrine - Wikipedia

    en.wikipedia.org/wiki/Ametrine

    Ametrine, also known as trystine or by its trade name as bolivianite, is a naturally occurring variety of quartz.It is a mixture of amethyst and citrine with zones of purple and yellow or orange.

  5. Minium (mineral) - Wikipedia

    en.wikipedia.org/wiki/Minium_(mineral)

    Minium is the naturally occurring form of lead tetroxide, Pb 2+ 2 Pb 4+ O 4 also known as red lead. Minium is a light-to-vivid red and may have brown-to-yellow tints. It typically occurs in scaly-to-earthy masses. It crystallizes in the tetragonal crystal system. [2]

  6. Pristine - Wikipedia

    en.wikipedia.org/wiki/Pristine

    Pristine, meaning unsullied, or unmodified from a natural state, may also refer to: Pristine (band), Norwegian blues rock band; Pristine (company), software company;

  7. Pristane - Wikipedia

    en.wikipedia.org/wiki/Pristane

    Pristane is a natural saturated terpenoid alkane obtained primarily from shark liver oil, from which its name is derived (Latin pristis, "shark").It is also found in the stomach oil of birds in the order Procellariiformes and in mineral oil and some foods. [2]

  8. Grasberg mine - Wikipedia

    en.wikipedia.org/wiki/Grasberg_mine

    The workings include a large open pit mine 2.4 kilometres (1.5 mi) wide at the surface completed in 2019, three operating underground mines (Grasberg Block Cave, Deep Mill Level Zone and Big Gossan) and four concentrators. The mine is a high-volume, low-cost underground mining operation, producing and milling more than 72 million tonnes of ore ...

  9. Grand Prismatic Spring - Wikipedia

    en.wikipedia.org/wiki/Grand_Prismatic_Spring

    The first records of the spring are from early European explorers and surveyors. In 1839, a group of four trappers from the American Fur Company crossed the Midway Geyser Basin and made note of a "boiling lake", most likely the Grand Prismatic Spring, [5] with a diameter of 300 feet (90 m).

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