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Staurolite: Formula: Fe 2 2+ Al 9 Si 4 O 23 (OH) Confirmation: Validity: Believed Valid: References: References: Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92: Data: Mineral Data: Click here to view Staurolite data: Locality Data: Click here to view Ball Ground, Ball Ground Mining District, Cherokee Co., Georgia, USA: Photo Gallery : View Gallery (4 photos
Properties Staurolite often occurs twinned in a characteristic crossshape, called cruciform penetration twinning. 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 official state mineral of the state of
Staurolite is a gentle grounding and shielding crystal, and because of its cruciform shape, was traditionally used for protection and good luck. It is considered to be
STAUROLITE See photos of this mineral / Voyez des photos History / Historique. Authors/Auteurs (inventeurs): DELAMETHERIE; Discovery date/Date de découverte: 1792; Etymology/Etymologie: Du grec "STAUROS" = croix en allusion à la macle en croisette de Bretagne très courante. Chemical properties / Propriétés chimiques. Chemical Class/Classe chimique: NESOSUBSILICATES
Description: Staurolite forms during the metamorphism of aluminous rocks at intermediate temperatures and pressures. It can form large euhedral crystals in schist, associated with muscovite, biotite, almandine and kyanite. Some crystals show distinctive cross or Xshaped twins.
Staurolite stones are quite unique in that they naturally form a cross within the stone. They are also known as fairy stones or as the fairy cross because they embody an energy that will help you to make contact with beings from the natural world.
Staurolite is a metamorphic mineral that is found almost exclusively in mediumgrade schists. In general, it has an isolated tetredral structure related to that of kyanite. The name comes from the Greek for cross, in allusion to its common cruciform twins.
Staurolite is a common metamorphic mineral that is useful to geologists to determine the degree of metamorphism. Staurolite is famous for its twinnedcrystals that form into the shape of a cross. Its name comes from the greek for cross. The twin is a classic penetration twin where it appears as if two crystals grew into and out of each other.
Staurolite is a regional metamorphic mineral of intermediate to high grade. It occurs with almandine garnet, micas, kyanite and other metamorphic minerals. It is the official state mineral of Georgia. Staurolite is one of the index minerals that are used to estimate the temperature, depth, and pressure at which a rock undergoes metamorphism.
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. Staurolite is quite resistant to weathering but may alter to
Properties of Staurolite Staurolite is a silicate mineral with a generalized chemical composition of (Fe Mg) 2 Al 9 Si 4 O 23 (OH) It is usually brown or black in color with a resinous to vitreous luster It ranges from transparent to opaque in diaphaneity
Staurolite is a typical mineral of highalumina metamorphic rocks. It is stable to weathering, it can be accumulated at placers. In Russia, it is found in significant volume on the Kola Penin., in micaceous schists of the Keivy Range, in the region of Semiostrovje and Shuururta Mt., where the size of separate crystals reached 20 cm.
Staurolite (Fe2+;Mg)2Al9(Si;Al)4O20(O;OH)4 °c 2001 Mineral Data Publishing, version Crystal Data: Monoclinic, pseudoorthorhombic. Point Group: 2=m: Commonly in prismatic crystals exhibiting f110g, f010g, f001g, and f101g, typically rough, to 12 cm. Twinning: Commonly as 60± twins with f231g as twin plane, may be cyclic; less commonly as 90± cruciform twins with f031g as twin plane
· staurolite mineral group: Named after: cross (Ancient Greek, σταυρóς "stauros") Authority control Q413380 GND ID: . Reasonator; PetScan; Scholia; Statistics; Search depicted (Fe 2+,Mg) 2 Al 9 (Si,Al) 4 O 20 (O,OH) 4. Media in category "Staurolite" The following 78 files are in this category, out of 78 total. 263 2,046 × 1,275; . 600 Coray Micaschiste à
technological properties, occurrences, production, reserves [Heavy minerals of economic importance] Abstract: Usually, heavy minerals are not the first thing on the mind of working geologists in Germany. However, on a global scale, they are of crucial economic importance as nonmetallic and metallic raw materials alike. Economic heavy mineral
Staurolite definition, a mineral, basic iron aluminum silicate, Fe2Al2O7(SiO4)4(OH), occurring in brown to black prismatic crystals, which are often twinned in the form of a cross. See more.
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.
La staurolite ou staurotide est une espèce minérale du groupe des silicates et du sousgroupe des nésosubsilicates, de formule (Fe,Mg,Zn,Co) 1,52 Al 9 (SiO 4) 4 O 6 (O,OH) 2 avec des traces de Ti, Cr, Mn, Co et Li. Elle cristallise dans le système cristallin monoclinique. Les
Named as the magnesiumdominant analog of staurolite. Synonym: IMA European Journal of Mineralogy, 15 (2003), Magnesiostaurolite and zincostaurolite: mineral description with a petrogenetic, and crystalchemical update : Physical Properties of Magnesiostaurolite : Color: Colorless. Diaphaneity: Transparent : Habit: Inclusions Generally found as inclusions in other
A classic Staurolite locality is Pizzo Forno, Ticino, Switzerland, where elongated crystals were found in matrix associated with Kyanite. Staurolite floater crystals, sometimes with good translucency, come from the alluvial s of Brittany, France, at Baud and Finistère.
Hornblende is a inosilicate amphibole minerals, which are two type hornblende minerals. They are ferrohornblende and magnesiohornblende. They are an isomorphous mixture of three molecules; a calciumironmagnesium silicate, an aluminiumironmagnesium silicate, and an ironmagnesium name hornblende is applied to a group of minerals that can be distinguished from each
In hand sample, staurolite frequently occurs as twinned prismatic crystals known as " fairy stones " or "fairy crosses." In thin section, it displays a poikiloblastic texture which people often liken to vomit spatter—gross, but effective. Staurolite in Hand Sample
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 and the chemical formula: Fe 2+2 Al 9 O 6 (SiO 4) 4 (O,OH) 2. Magnesium, zinc and manganese substitute in the iron site and trivalent iron can substitute for aluminium.
Staurolite Mineral Data Search Webmineral : Home: Crystal: jmol: jPOWD: Chem: X Ray: Dana: Strunz: Properties: A to Z: Images: Share : News: Help: About: Advertisment [Newest Minerals] [Mineral Auctions] [Mineral Gallery] The Mineral Gallery''s Exceptional Specimens and Mineral Hall of Fame Visa, PayPal, and Mastercard are Welcomed General Staurolite Information : Chemical Formula: (Fe++,Mg
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