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  2. Baryte - Wikipedia

    en.wikipedia.org/wiki/Baryte

    Baryte, barite or barytes (/ ˈ b ær aɪ t, ˈ b ɛər-/ BARR-eyet, BAIR-[7] or / b ə ˈ r aɪ t iː z / bə-RYTE-eez [8]) is a mineral consisting of barium sulfate (BaS O 4). [3] Baryte is generally white or colorless , and is the main source of the element barium .

  3. Crystal habit - Wikipedia

    en.wikipedia.org/wiki/Crystal_habit

    In mineralogy, crystal habit is the characteristic external shape of an individual crystal or aggregate of crystals. The habit of a crystal is dependent on its crystallographic form and growth conditions, which generally creates irregularities due to limited space in the crystallizing medium (commonly in rocks ).

  4. Desert rose (crystal) - Wikipedia

    en.wikipedia.org/wiki/Desert_rose_(crystal)

    A desert rose is an intricate rose-like formation of crystal clusters of gypsum or baryte, which include abundant sand grains. [1] The "petals" are crystals flattened on the c axis, fanning open in radiating clusters. The rosette crystal habit tends to occur when the crystals form in arid sandy conditions, [1] such as the evaporation of a ...

  5. Selenite (mineral) - Wikipedia

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

    Selenite, satin spar, desert rose, and gypsum flower are crystal habit varieties of the mineral gypsum.. All varieties of gypsum, including selenite and alabaster, are composed of calcium sulfate dihydrate (meaning that it has two molecules of water), with the chemical formula CaSO 4 ·2H 2 O. Selenite contains no selenium, the similar names both derive from Greek selḗnē (σελήνη 'Moon').

  6. Category:Mineral habits - Wikipedia

    en.wikipedia.org/wiki/Category:Mineral_habits

    In mineralogy a mineral habit is the characteristic external form or appearance of a mineral. Several examples of mineral habits are: prismatic , dentric, bladed, acicular, massive, and reniform. Pages in category "Mineral habits"

  7. Sphalerite - Wikipedia

    en.wikipedia.org/wiki/Sphalerite

    Sphalerite has been found as a pseudomorph, taking the crystal structure of galena, tetrahedrite, barite and calcite. [ 13 ] [ 15 ] Sphalerite can have Spinel Law twins, where the twin axis is [111]. The chemical formula of sphalerite is (Zn,Fe)S ; the iron content generally increases with increasing formation temperature and can reach up to 40 ...

  8. Siderite - Wikipedia

    en.wikipedia.org/wiki/Siderite

    Siderite is commonly found in hydrothermal veins, and is associated with barite, fluorite, galena, and others. It is also a common diagenetic mineral in shales and sandstones, where it sometimes forms concretions, which can encase three-dimensionally preserved fossils. [6]

  9. Gottlobite - Wikipedia

    en.wikipedia.org/wiki/Gottlobite

    In the mine at this location, Gottlobite is found in hydrothermal veins of barite that are cutting through conglomerate. The crystals of gottlobite can be found embedded in these barite veins or as stand-alone crystals on surrounding minerals. The associated minerals in the area are hausmannite, barite, vanadian adelite, and muscovite. [4]