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 2+ 2 Al 9 O 6 (SiO 4 ) 4 (O,OH) 2 .
Staurolite: A metamorphic mineral famous for twinned crystals - Geology.com
Staurolite is a mineral that is commonly found in metamorphic rocks such as schist and gneiss. It forms when shale is strongly altered by regional metamorphism. It is often found in association with almandine garnet, muscovite, and kyanite - minerals that form under similar temperature and pressure conditions.
Staurolite: Mineral information, data and localities. - mindat.org
From Greek "stavros", cross, alluding to the cruciform twins it displays in some cases. Staurolite Group. Visit gemdat.org for gemological information about Staurolite. As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams. Please only use the official IMA–CNMNC symbol.
Staurolite: Meanings, Properties and Powers - The Complete …
2019年1月20日 · Staurolite gemstones are unique, beautiful, and striking because they create the shape of a cross right within the stone. They’re also known as the Fairy Cross because they possess an energy that will help and guide you in communicating with beings in your environment and from the natural world.
Staurolite Meanings and Crystal Properties
Staurolite, also known as Fairy Stone or Fairy Cross, is a nesosilicate mineral that naturally occurs in cross shapes (cruciform). The minerals usually cross at a 60 or 90 degree angle, with some specimens representing a perfect perpendicular cross. Staurolite’s genetic makeup is very complex, containing aluminum, zinc, magnesium and iron.
Staurolite: Ultimate Guide To Staurolite Crystals (Fairy Crosses)
2022年8月29日 · Staurolite is a red-to-black crystalline silicate mineral that forms in pairs of prismatic crystals with right angles. The name Fairy Cross seems apt, especially if you have a great example of the mineral.
Staurolites (Fairy Crosses) What Is It and Why Collect Them?
2023年8月21日 · Staurolites or Fairy Stones are composed of aluminum, iron, and silicate. Like many other minerals, Staurolite forms in regular crystals. Single crystals are hexagonal or six-sided; single stones often intersect at right angles, forming the Maltese or Roman shape.
Staurolite | Properties, Formation, Occurrence - Geology Science
2024年7月1日 · Staurolite is a metamorphic mineral that forms under high temperatures and pressures. It is known for its distinct cruciform or cross-shaped crystal habit. How does staurolite form? Staurolite forms during regional metamorphism, which occurs when rocks are subjected to high pressures and temperatures deep within the Earth’s crust.
The Mineral staurolite - The Mineral and Gemstone Kingdom
Staurolite is best known for its distinctive, cross-shaped penetration twins, where two rectangular crystals intersect each other to form a perfect cross.
The Legend of Fairy Crosses - Blue Ridge, GA
Fairy Cross is another name for staurolite crystals, minerals found in old rocks of the Eastern U.S., and they are especially abundant in Fannin County. What makes these natural crosses so appealing? The mystical qualities and the curious makeup of fairy crosses have appealed to the superstitious nature nature of people for centuries.
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