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	staurolite.htm
		IRON COUNTY: Staurolite occurs as porphyroblasts in schist associated with kyanite, almandine, biotite, quartz and oligoclase in a roadcut along Hwy 182 west of Powell (SE SW sec.
		LANGLADE COUNTY: Staurolite occurs in schist near Kempster where it is associated with andalusite, muscovite, quartz, garnet, plagioclase and chlorite (Geiger and Guidotti, 1989).
		SHAWANO COUNTY: Staurolite mica schist was reported from the Menominee region in the northern part of the county by Irving (1883).
	www.uwrf.edu /~wc01/staurolite.htm (275 words)

	tScholars.com \| Staurolite (Site not responding. Last check: )
		Staurolite is a red brown to fl, mostly opaque, nesosilicate mineral with a white streak.
		A special property of staurolite is that it often occurs twinned in a characteristic cross-shape.
		Staurolite is a regional metamorphic mineral of intermediate to high grade.
	www.tscholars.com /encyclopedia/Staurolite (181 words)

	Staurolite - LoveToKnow 1911
		STAUROLITE, a mineral consisting of basic aluminium and ferrous iron silicate with the formula HFeA1 5 Si 2 O 13.
		Staurolite is a characteristic mineral of crystalline schists, and it is also a product of contact-metamorphism.
		Large twinned crystals with rough surfaces are found in mica-schist in Brittany and at several places in the United States, e.g.
	www.1911encyclopedia.org /Staurolite (241 words)

	Staurolite,Staurolite Minerals,Staurolite Information,Staurolite Uses
		Staurolite was the regional metamorphic mineral of Greek from intermediate to high grade.
		Staurolite is the official state mineral of Georgia.
		Staurolite is a common metamorphic mineral, being useful to geologists in determining the degree of metamorphism.
	www.mineralszone.com /minerals/staurolite.html (199 words)

	Titanium in staurolite
		Staurolite is well known for its yellow color and moderate pleochroism, which follows the scheme Z yellow, Y pale yellow, and X virtually colorless.
		The color intensity of the rim is indistinguishable from that of the {l10} sector of the primary staurolite.
		Applied to staurolite with Z = c, Y = a and X = b, it implies that the Fe-Ti vector has a large component parallel to c, a smaller component parallel to a, and a near zero component parallel to b.
	www.minsocam.org /msa/collectors_corner/arc/staurolite.htm (3441 words)

	Reference.com/Encyclopedia/Staurolite
		Staurolite is a red brown to fl, mostly opaque, nesosilicate mineral with a white streak.
		A special property of staurolite is that it often occurs twinned in a characteristic cross-shape.
		Staurolite is a regional metamorphic mineral of intermediate to high grade.
	www.reference.com /browse/wiki/Staurolite (189 words)

	Staurolite Crystals of Patrick County
		Staurolite crystals are a natural rock formation in the shape of a cross.
		Staurolite crystals are found in a hardness scale from 0 to 7-1/2 on the Moh scale.
		Staurolite crystals are formed in many stages of perfection, from a faint cross to a perfect cross and every stage in between.
	www.stonecrossmountain.com (493 words)

	Staurolite - One Unusual and Powerful Mineral - Jewelry Collecting
		Staurolite is a light tan to dark brownish-fl, and often reddish-brown colored mineral, born of the Earth, like all natural gemstones.
		Staurolite crystals were worn by Pocahontas who in turn gave one of her crystals to Captain John Smith to protect him from harm.
		Staurolite is abundant in North Carolina, Virginia, Georgia, and Tennessee.
	www.bellaonline.com /articles/art42829.asp (490 words)

	Staurolite
		Staurolite is a redbrown to fl mostly opaque silicate mineral with a white streak.
		The brackets mean that iron, magnesium and zinc atoms can occur in arbitrary mixing but they are always related to the other groups in the same way.
		A specialty of staurolite is that it occurs often twinned in a characteristic cross-shape.
	www.abacci.com /wikipedia/topic.aspx?cur_title=Staurolite (179 words)

	Structural and metamorphic characteristics of the Aston-Hospitalet domes
		Staurolite that is not a relic in andalusite is rimmed by large muscovite porphyroblasts that overgrow the main foliation (Figure 10e).
		In this sample, staurolite and andalusite porphyroblasts are anhedral and poikiloblastic with straight inclusion trails, that are oriented parallel to the main schistosity in andalusite, and obliquely oriented in the staurolite.
		Staurolite porphyroblasts are several millimetre in size, commonly rimmed by coarse new muscovite, cordierite forms large centimetre-sized porphyroblasts with abundant inclusions of ilmenite, and in places muscovite.
	www.virtualexplorer.com.au /journal/2005/19/mezger/aston.html (3805 words)

	Staurolite Crystals - Fairy Crosses
		Staurolite almost always occurs in crystals--as orthorhombic prisms and commonly as twinned crystals.
		Staurolite can be found in many areas of Georgia, however, those found in Fannin County have an unusually high quality.
		A set of physical conditions must be met for staurolite to form, and they happen to be met in Fannin County.
	www.blueridge-georgia.com /fannin_county/history/staurolite_crystals.htm (321 words)

	Chapter5: Zanskar Metamorphism, the staurolite zone
		In the less pelitic horizons of this zone, staurolite is however absent and the mineral assemblage remains the same as for the garnet zone.
		Staurolite growth is thus either syn- or post-tectonic with respect to the burial of the HHCS below the TH.
		Garnet is frequently found as inclusions within the staurolite poikiloblasts which indicates that the rock from the staurolite zone first underwent garnet zone metamorphic conditions (Fig 5.14).
	comp1.geol.unibas.ch /~zanskar/CHAPITRE5/staurolite.html (291 words)

	Microstructures of prograde mineral growth in the Bushveld aureole
		A chloritoid pseudomorph, aligned NW-SE, is partly overgrown by staurolite and andalusite.
		Staurolite is partly enveloped by large andalusite, which could have nucleated at similar time to staurolite.
		The outline of the biotite and its pattern of quartz inclusions appear to be faithfully preserved by the staurolite.
	www.earth.ox.ac.uk /~davewa/research/kinetics/kin_wl02.html (1182 words)

	Let's Talk Gemstones
		With the presence of a trace of zinc, lighter colors occur in zincian staurolite, and some of its optical and physical properties differ slightly.
		Zincian staurolite might even be considered a color-change gem since it may appear yellow-green in daylight and red-brown in incandescent light.
		Kyanite accompanies the twinned staurolite recovered from the mica-schists of Monte Campione and Lake Ritone in Switzerland.
	www.attawaygems.com /NMFG/Lets_talk_gemstones_staurolite.htm (721 words)

	Olympus Microscopy Resource Center: Polarized Light Microscopy Gallery - Staurolite Quartzite
		Staurolite is a neosilicate mineral that is generally reddish-brown to fl in color.
		Common in metamorphic rocks, such as quartzite, staurolite often forms in such a way that its prismatic crystals are twinned, giving them the appearance of a cross.
		Due to this unusual manifestation, the mineral has been revered as a good luck charm since antiquity when it was referred to as lapis crucifer, or cross stone.
	www.olympusmicro.com /galleries/polarizedlight/pages/staurolitequartzitesmall.html (234 words)

	The AusIMM Online Publications
		Staurolite is one of the major contaminant minerals contained in the Tiwest Cooljarloo orebodies.
		Staurolite in heavy mineral concentrate is typically five per cent by weight and has no significant effect in the Dry Mill other than to occupy equipment space, reporting as a tailing, that requires transportation and disposal back to the mine site.
		Staurolite was tested against three other commercially available abrasives and compared very well with respect to surface profile, surface texture, coating adhesive strength and dust generation.
	www.shop.ausimm.com.au /paperdetails.php?PaperID=292 (289 words)

	Microstructures of Prograde Reaction: Practical demonstration 1 (Site not responding. Last check: )
		Staurolite and andalusite form large poikiloblasts, and fibrolitic sillimanite forms knots and small nodules.
		Staurolite poikiloblasts pseudomorph a pre-existing mica fabric, which is parallel to the external schistosity.
		Away from the poikiloblasts the mica grain size and distribution is quite similar to that of the fabric preserved in staurolite.
	www.earth.ox.ac.uk /~davewa/research/kinetics/ispet/ispet_case3.html (280 words)

	Staurolite spectra
		Staurolite is an example of a mineral containing Fe in a site of four-coordination.
		Consequently, the absorption from iron is in the near-infrared portion of the spectrum as is shown in the spectrum below.
		The color of staurolite is due primarily to the Fe - Ti intervalence charge transfer transition.
	minerals.gps.caltech.edu /FILES/Visible/staurolite/Index.htm (70 words)

	STAUROLITE - Online Information article about STAUROLITE
		early known as pierres de croix or lapis crucifer, and the name staurolite, given by J.
		plane is (032) and the two prisms intercross Twinned Crystals of Staurolite.
		Staurolite is a characteristic mineral of crystalline See also:
	encyclopedia.jrank.org /SOU_STE/STAUROLITE.html (415 words)

	Staurolite
		Staurolite is a metamorphic mineral common in medium grade micaceous schists and gneisses.
		Keys to identification are staurolite's yellow color and pleochrosim, and its occurrence in medium grade pelitic rocks.
		In PP light, the staurolite has low order interfernce colors (the view is nearly down an optic axis) while the muscovite shows upper order pastels of various hues.
	www.und.nodak.edu /instruct/mineral/320petrology/opticalmin/staurolite.htm (310 words)

	Staurolite (Site not responding. Last check: )
		Staurolite, also know as the 'Fairy Stone' or 'Fairy Cross', is a good-luck talisman.
		Staurolite is a useful grounding and protecting stone, is helpful in combating stress and depression, and in addressing obsessive personality characteristics.
		In healing, Staurolite may be used in the treatment of fevers, malaria, and depression.
	www.brightnewdawn.com /private/crystals/x_staurolite.htm (82 words)

	Bedrock Geology Bath 100K Report - Metamorphism and Migmatization - Maine Geological Survey
		Within the staurolite + andalusite zone of metamorphism at the western edge of the map sheet (Figure 51) the typical mineral assemblage in pelitic rocks is muscovite-biotite-quartz- oligoclase-staurolite-andalusite.
		Where sillimanite occurs in the quartz veins, it can usually be found in minute amounts within biotite grains in the host schist, indicating that the grade of metamorphism is actually slightly higher than is suggested by megascopic occurrences of the critical indicator minerals in hand specimen.
		In places, fresh staurolite forms large (1 to 2 cm long) twinned porphyroblasts, and andalusite occurs as large poikiloblasts up to 4 cm in diameter, engulfing all other phases.
	www.state.me.us /doc/nrimc/mgs/explore/bedrock/b42/meta.htm (770 words)

	Metamorphic Reactions
		Because it would be called the Staurolite isograd for one group of rocks, but the Biotite isograd for another, and because Staurolite would occur in some rocks below the isograd and in other rocks only above the isograd, it would soon become very confusing.
		In this case, with increasing temperature, Staurolite becomes unstable and reacts to produce Garnet, Biotite and Kyanite.
		Note that for this reaction the disappearance of staurolite also coincides with the appearance of Kyanite in rocks of composition x and y.
	www.tulane.edu /~sanelson/eens212/metamorphreact.htm (2781 words)

	Wilson Standardbred Frams
		Staurolite is the lightly raced daughter of Master Willie, out of the Royal Prestige mare Period Gem.
		Staurolite raced only a few times and trotted around the local county fair circuit, owned by John Knifely.
		Staurolite's first foal--a bay filly by Band's Gold Chip--was born on March 21, 2005.
	www.timwilsonfarm.com /resources/BroodmareSauroliteFilly05.html (60 words)

	The natural weathering of staurolite: crystal-surface textures, relative stability, and the rate-determining step
		Etch pits on naturally weathered staurolites are disk-shaped, extensive parallel to (010), and thin perpendicular to (010).
		Staurolite weathers very slowly relative to most other silicate minerals; this may be due to presence of stable kyanite-like "ribbons" in the staurolite structure or to the low site-energy of the Fe-site in the staurolite structure (compared to other orthosilicates).
		The capacity of staurolite to form protective surface layers around itself in most weathering environments is apparently limited by its slow weathering, which prevents the release of product-forming elements (especially Ai) at rates sufficient to produce local supersaturation with respect to secondary minerals.
	www.srs.fs.usda.gov /pubs/25409 (508 words)

	Thaigem.com \| Info Center \| A-Z Gemstones \| From Gemology To Mythology Learn More About Staurolite At Our A-Z Gemstones
		Often known as “Fairy Stones” or “Fairy Crosses”, Staurolite intrigues collectors because it naturally occurs in the shape of a cross.
		Staurolite is reddish-brown, brown and fl in color, and it is found in Brazil, UK, France, Switzerland and U.S.A. While, genuine specimens are rare (copies are common due the popularity of their crystals), real Staurolite can be determine by its ability to scratch glass.
		Faceted Staurolites are extremely rare because it is unusual to find crystals that are both light colored and large enough to be faceted.
	www.thaigem.com /a-z_gemstones/dis_Staurolite.asp (275 words)

	Staurolite (Site not responding. Last check: )
		The most distinctive feature of staurolite is its shape.
		Staurolite either forms long, prismatic crystals with the distinctive cross-section shown below or a pair of crystals ('twinned') that form a cross either as an X or a +.
		The end-view of the staurolite on top shows their typical cross-section.
	www.pitt.edu /~cejones/GeoImages/1Minerals/3MetamorphicMineralz/Staurolite.html (102 words)

	DRAM, FGS, Staurolite
		Staurolite resembles rutile under the microscope, but has a dull luster, In Florida, staurolite occurs as rounded sand-size particles.
		Use: The principal use of staurolite is in the production of Portland cement, where it substitutes for clay in supplying the necessary alumina and part of the iron as required by the cement formula.
		Staurolite is also used as a sand blasting material.
	www.floridadep.org /geology/geologictopics/rocks/staurolite.htm (123 words)

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