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  2. List of minerals - Wikipedia

    en.wikipedia.org/wiki/List_of_minerals

    This is a list of minerals which have Wikipedia articles. ... Rock crystal (quartz) Rose quartz (pink variety of quartz) Roumanite (amber) Ruby (red gem corundum) S

  3. List of rock types - Wikipedia

    en.wikipedia.org/wiki/List_of_rock_types

    Phosphorite – Sedimentary rock containing large amounts of phosphate minerals – A non-detrital sedimentary rock that contains high amounts of phosphate minerals; Sandstone – Type of sedimentary rock; Shale – Fine-grained, clastic sedimentary rock; Siltstone – Sedimentary rock which has a grain size in the silt range

  4. Mineral - Wikipedia

    en.wikipedia.org/wiki/Mineral

    In rocks, some mineral species and groups are much more abundant than others; these are termed the rock-forming minerals. The major examples of these are quartz, the feldspars, the micas, the amphiboles, the pyroxenes, the olivines, and calcite; except for the last one, all of these minerals are silicates. [39]

  5. List of minerals recognized by the International ...

    en.wikipedia.org/wiki/List_of_minerals...

    Use of old mineral names is also discontinued, for example when a name is no longer considered valid. Therefore, a list of recognised mineral species is never complete. Minerals are distinguished by various chemical and physical properties. Differences in chemical composition and crystal structure distinguish the various species.

  6. Rock (geology) - Wikipedia

    en.wikipedia.org/wiki/Rock_(geology)

    Most rocks contain silicate minerals, compounds that include silica tetrahedra in their crystal lattice, and account for about one-third of all known mineral species and about 95% of the earth's crust. [6] The proportion of silica in rocks and minerals is a major factor in determining their names and properties. [7]

  7. Primary mineral - Wikipedia

    en.wikipedia.org/wiki/Primary_mineral

    Minerals in soils are found in two types; primary and secondary. [5] "A primary mineral has not been altered chemically since its crystallization from a cooling magma." [5] Additionally, a primary mineral is defined as a mineral that is found in soil but not formed in soil, whereas secondary minerals are formed during weathering of

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