Staurolite is a mineral that is known for its unique crystal shape and its association with metamorphic rocks. The name "staurolite" comes from the Greek words "stauros" meaning "cross" and "lithos" …

Staurolite. Named for its cross-shaped twinning it sometimes displays, Staurolite is named for the Greek word stauros, meaning "cross.". Staurolite is a common detrital mineral and also occurs in schists, gneisses, and argillaceous rocks that are amphibole-grade metamorphosed. It is a widespread mineral, but especially fine crystal ...

Georgia State Mineral Staurolite {(Fe,Mg) 2 Al 9 Si 4 O 23 (OH)} Adopted in 1976. In 1976, staurolite was named Georgia's official state mineral. Georgia has a wealth of minerals, among them staurolite crystals, popularly called "Fairy Crosses" or "Fairy Stones."Particularly abundant in north Georgia, the distinctively twinned, crossed …

Staurolite Franconia Iron Mine (Franconia Mine), Ore Hill, Sugar Hill, Grafton Co., New Hampshire, USA Thumbnail 9.3 x 5.8 x 3.1 cm. SOLD. Details. MD-150460 Staurolite Cook Road Staurolite locality, Windham, Cumberland Co., Maine, USA Small Cabinet 5.5 x 2.8 x 2.4 cm. SOLD. Details. MD-172283 Staurolite Fannin Co., …

Staurolite is a brittle, hard mineral that has a dull lustre. Its crystals are usually dark brown in colour and are often twinned in cruciform patterns (known as fairy crosses) that can be made into ornaments. The name is …

Staurolite Barn is a venue in Mineral Bluff, Georgia, hosting weddings and special events. The mineral vein of staurolite, considered a lucky stone, runs through this stunning 130-acre property, giving it a unique charm. Boasting a generous selection of indoor and outdoor event spaces, it is everything you need for a memorable day of festivities.

American Mineralogist, Volume 70, pages 1-15, 1985 Tourmaline as a petrogeneticindicator mineral: an examplefrom the staurolite-grademetapelitesof NW Maine Dnnnnn J. HeNnyr Lunar and Planetary Institute 3303 NASA Road l, Houston, Texas 77058 exo Cnenr-ns V. Guroorrr Department of Geological Sciences University of …

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 sericite, chlorite and limonite.

The mineral paragenesis of the metapelites (garnet, staurolite, chloritoid, chlorite, muscovite and quartz) reflects peak metamorphic P-T conditions of 580°C and~3-4 kbar, indicating forma-tion ...

Staurolite Group mineral data, information about Staurolite Group, its properties and worldwide locations.

Cristales prismáticos cortos con frecuentes formas {110}, {010}, {001}, y {101}. Presentan maclas en forma de cruz, son frecuentes de dos tipos: con plano de macla {031}, en el cual los dos individuos están cruzados a casi 90°; según {231}, en cuyo caso se cruzan a casi 60°.

La staurolite si ritrova più raramente in rocce eclogitiche con composizioni inusualmente ricche in Al, dove mostra una composizione magnesiaca. La staurolite è relativamente resistente all'alterazione e si può ritrovare come minerale detritico in rocce sedimentarie silicoclastiche, specialmente in depositi (placers) di minerali pesanti.

Advantages of Staurolite® and Starblast® include: Reduction of dust generation which increases visibility of blasting surface. A cleaner, faster, more efficient cleaning which lowers labor costs. Rounded to subangular grains result in less abrasive embedment. Electrically nonconductive. In using these blasting abrasives, it is always ...

La staurolite ou staurotide est une espèce minérale du groupe des silicates et du sous-groupe des nésosubsilicates, de formule (Fe,Mg,Zn,Co) 1,5-2 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 cristaux peuvent atteindre jusqu'à 12 cm 3 .

Since the staurolite to sillimanite reaction has a low Gibbs free energy difference and dissolution of staurolite is considered to be slow (Pattison & Spear, 2018), a modest overstepping of 8 ...

Description. Sharp brown staurolite in matrix from the classic (now-closed) Cook Road locality, Windham, Maine. The main crystal is in excellent condition, the end is contacted where it ended in the mica schist matrix. From the Pete Richards collection, personally-collected on August 3, 1986. Beautiful staurolite from Cook Road, Windham ...

Staurolite was designated the official state mineral of Georgia in 1976 (Georgia also recognizes an official state gem). Commonly called "fairy crosses" or "fairy stones," staurolite crystals are common in northern …

Located in the Mackay School of Mines building at the University of Nevada, Reno, the W.M. Keck Earth Science and Mineral Engineering Museum is open to the public Monday through Friday from …

Les vertus et propriétés de la pierre staurolite sur le plan mental. Dans le contexte de la lithothérapie, la pierre Staurolithe est la pierre de l'équilibre émotionnel. Elle aide à temporiser, et son lien avec le sol fertile nous fournit un sentiment de bien-être et de satiété.

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 …

Staurolite is best recognized as stubby, elongate, brownish crystals that are crossed (twinned). The upper two specimen show two kinds of crosses, while the lower specimen is uncrossed. Yellowish brown, reddish to brownish black; vitreous (glassy) luster; stubby, prismatic crystals with pseudo-hexagonal cross section; hardness 7-7.5; poor ...

Staurolite is best known for its distinctive, cross-shaped penetration twins, where two rectangular crystals intersect each other to form a perfect cross.

Staurolite. Windham, Cumberland Co., Maine, USA. Miniature, 5.2 x 4.0 2.0 cm. Ex. New York State Museum. $950.00. Order Now. Here is an old-time Staurolite cluster nicely set on, and in, a schist matrix from the classic Cook Road Staurolite locality in Maine. The sharp, lustrous, dark brown, monoclinic crystals are largely undamaged …

Staurolite is a common detrital mineral and also occurs in schists, gneisses, and argillaceous rocks that are amphibole-grade metamorphosed. It is a widespread mineral, but especially fine crystal …

Staurolite is a brittle, hard mineral that has a dull. Staurolite, silicate mineral [(Fe,Mg,Zn)3-4Al18Si8O48H2-4] produced by regional metamorphism in rocks such as mica schists, slates, and gneisses, …

Staurolite. 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 …

Staurolite's yellow color, pleochroism, relief and habit make it distinguishing. It is vitreous and has a grey streak. Staurolite's hand sample has characteristic penetration twinning and unique crystal habit. The crystals are brown, red or yellow in color. May resemble tourmaline in thin section, but tourmaline is uniaxial.

Weddings. Our Staurolite Barn wedding venue is the perfect place for your special day. When you have your wedding at our wedding venue, we'll make sure you have everything you need to create a perfect day. Come visit our gorgeous indoor and outdoor venue in Mineral Bluff, Georgia! Our rustic setting is beautifully incorporated into our event ...

The dominant metamorphic assemblage of the metapelites is garnet, staurolite, chloritoid, chlorite, muscovite and quartz, which grew mainly syntectonically during the later contact metamorphic event. Peak metamorphic conditions of this event took place at 580 °C and ~3–4 kbar, indicating that this event occurred under high …

staurolite. Image credit: James St. John. staurolite chemical formula: Fe 2 Al 9 Si 4 O 22 2 (interpreting mineral chemical formulas: atoms, molecules, elements) non-metallic. not electrically conductive. graphic image credit: Scott Brande. mineral image credit: James St. John. not magnetic. not reactive.

The distribution and textural features of staurolite–Al 2 SiO 5 mineral assemblages do not agree with predictions of current equilibrium phase diagrams. In contrast to abundant examples of Barrovian staurolite–kyanite–sillimanite sequences and Buchan-type staurolite–andalusite–sillimanite sequences, there are few examples of …

Staurolite is a mineral sand abrasive blasting media with moderate levels of durability and hardness. Most Staurolite comes from Florida and Western Australia as a byproduct of zircon mining. Tends to be very …

Staurolite. Comments: Cruciform twinned staurolite crystals without matrix. Location: Marble, Cherokee Co., North Carolina, USA. Scale: 3x2.5x1.5 cm. © John Betts - Fine Minerals

Georgia State Mineral. Staurolite became the official Georgia state mineral on March 18, 1976 when work was completed on and House Resolution No. 517-1385 was formally adopted. Because twin crystals are often found in cross shapes (from Greek, "cross stone"), staurolite crystals are often referred to as Fairy Crosses or Cross Rocks.

Staurolite. Sharp, twinned red-brown staurolite in matrix from the classic (now-closed) Cook Road locality, Windham, Maine. The main crystal is in excellent condition, a couple of chips. From the Pete Richards collection, personally-collected on August 3, 1986. Beautiful staurolite from Cook Road, Windham, Cumberland Co., Maine, USA.

La staurolite è un minerale, sub nesosilicato di alluminio e ferro. Si presenta spesso in cristalli a forma di croce greca se l'angolo tra le braccia è di 90° o di croce di Sant'Andrea se gli angoli sono di 60°/120°. La staurolite è frequente come minerale accessorio nei scisti cristallini con granati, cianite, tormalina.

General Staurolite Information : Chemical Formula: (Fe++,Mg)2Al9(Si,Al)4O20(O,OH)4 : Composition: Molecular Weight = 811.89 gm Lithium 0.09 % Li 0.18 % Li 2 O Magnesium 0.30 % Mg 0.50 % MgO Aluminum 28.91 % Al 54.63 % Al 2 O 3 Iron 9.63 % Fe 12.39 % FeO Silicon 13.49 % Si 28.86 % ...