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    Image result for Staurolite. Size: 202 x 200. Source: www.etsy.com
    Wikipedia
    https://en.wikipedia.org/wiki/Staurolite

    Staurolite - Wikipedia

    • Staurolite is a reddish brown to black, mostly opaque, nesosilicate mineral with a white streak. It crystallizes in the monoclinic crystal system, has a Mohs hardness of 7 to 7.5 and the chemical formula: Fe 2Al9O6(SiO4)4(O,OH)2. Magnesium, zinc and manganese substitute in the iron site and trivalent iron can substitute for aluminium. … See more

    CategoryNesosilicate
    Formula (repeating unit)Fe²⁺₂Al₉O₆(SiO₄)₄(O,OH)₂
    IMA symbolSt
    Strunz classification9.AF.30
    Properties

    Staurolite often occurs twinned in a characteristic cross-shape, called cruciform penetration twinning. In handsamples, macroscopically visible staurolite crystals are of prismatic shape. The mineral often forms … See more

    Name

    The name is derived from the Greek, stauros for cross and lithos for stone in reference to the common twinning. See more

    Occurrence

    Staurolite is a regional metamorphic mineral of intermediate to high grade. It occurs with almandine garnet, micas, kyanite; as well as albite, biotite, and sillimanite in gneiss and schist of regional metamorphic rocks.
    It is the … See more

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  1. Geology.com
    https://geology.com/minerals/staurolite.shtml

    Staurolite: A metamorphic mineral famous for twinned crystals

  2. Images of Staurolite

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    thecrystalcouncil.com
    Staurolite Meanings and Crystal Properties - The Crystal Council
    thecrystalcouncil.com
    Staurolite Meanings and Crystal Properties - The Crystal Council
    thecrystalcouncil.com
    Staurolite Meanings and Crystal Properties - The Crystal Council
    thecrystalcouncil.com
    Staurolite Meanings and Crystal Properties - The Crystal Council
    mcdougallminerals.com
    Staurolite - Windham, Maine | McDougall Minerals
    sacredore.com
    Staurolite Crystals Meanings and Properties - Sacredore
    mcdougallminerals.com
    Staurolite - Windham, Maine | McDougall Minerals
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  3. The Crystal Council
    https://thecrystalcouncil.com/crystals/sta…

    Staurolite Meanings and Crystal Properties

    Staurolite is a cross-shaped mineral that activates and aligns the third eye, heart and root chakras. It is a talisman for good luck and protection, and a symbol of fairy stones. Learn about its history, origin, science, and how to spot …

  4. Geology Science
    https://geologyscience.com/.../staurolite

    Staurolite | Properties, Formation, Occurrence

    Jul 1, 2024 · Staurolite is a cross-shaped mineral that forms in metamorphic rocks under high temperatures and pressures. Learn about its physical, chemical, and optical properties, its geological significance, and its practical …

  5. Mindat.org
    https://www.mindat.org/min-3753.html

    Staurolite: Mineral information, data and localities. - mindat.org

  6. The Mineral and Gemstone Kingdom
    https://www.minerals.net/mineral/staurolite.aspx

    The Mineral staurolite - The Mineral and Gemstone Kingdom

  7. ALEX STREKEISEN
    https://www.alexstrekeisen.it/.../meta/sta…

    Staurolite - ALEX STREKEISEN

    Staurolite is a regional metamorphic mineral that forms cross-shaped twins with kyanite. Learn about its chemical composition, optical properties, microscopic intergrowths, and how to identify it in rocks and gemstones.

  8. Britannica
    https://www.britannica.com/science/st…

    Staurolite | Fairy Crosses, Metamorphic Rock, Twinned …

    Staurolite is a silicate mineral produced by regional metamorphism in rocks such as mica schists, slates, and gneisses. It has a dull lustre, dark brown colour, and cruciform patterns that can be made into ornaments.

  9. Mineralogy Database
    http://webmineral.com/data/Staurolite.s…

    Staurolite Mineral Data

    Learn about staurolite, a monoclinic nesosilicate mineral with cruciform twins and various colors. Find its chemical formula, crystal structure, physical and optical properties, and more.

  10. Rockhounding Maps
    https://rockhoundingmaps.com/staurolit…

    Staurolites (Fairy Crosses) What Is It and Why Collect …

    Aug 21, 2023 · Learn about staurolites, also known as fairy crosses, a rare mineral that forms cross-shaped crystals in metamorphic rocks. Find out how to locate, clean and collect them in the Blue Ridge Mountains and New Mexico.