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Topic: Epidote

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	epidote.htm
		IRON COUNTY: Epidote occurs as a secondary mineral in the hornblende-rich schists and gneisses along the west branch of the Montreal River (Van Hise and Irving, 1892).
		MARINETTE COUNTY: Epidote occurs in the groundmass and in amygdules of metamorphosed pillow lavas of the Quinnesec Formation quarried at Kremlin.
		POLK COUNTY: Epidote is abundant in numerous outcrops of Keweenawan metabasalts throughout the county.
	www.uwrf.edu /~wc01/epidote.htm (991 words)

	Epidote - Definition, explanation
		A rock composed of quartz and epidote is known as epidosite.
		Belonging to the same isomorphous group with epidote are the species piemontite and allanite, which may be described as manganese and cerium epidotes respectively.
		In external appearance it differs widely from epidote, being fl or dark brown in color, pitchy in lustre, and opaque in the mass; further, there is little or no cleavage, and well-developed crystals are rare.
	www.calsky.com /lexikon/en/txt/e/ep/epidote.php (555 words)

	Epidote - LoveToKnow 1911
		The name epidote is one of R. Haiiy's crystallographic names, and is derived from i r150cns, "increase," because the base of the primitive prism has one side longer than the other.
		A rock composed of quartz and epidote is known as epidosite.
		Belonging to the same isomorphous group with epidote are the species piedmontite and allanite, which may be described as manganese and cerium epidotes respectively.
	www.1911encyclopedia.org /Epidote (588 words)

	Thaigem.com \| Info Center \| Gemstone Discovery \| Epidote
		Epidote is best known among mineral collectors for its unique green color described as "pistachio", which is quite striking in well-colored specimens.
		Despite its hardness and deep color, Epidote is not commonly cut and polished as a precious stone because the crystals rarely are clear or large enough to facet.
		Epidote is one of the birthstones for those born under the sign of Gemini.
	www.thaigem.com /dis_epidote.asp (292 words)

	Epidote: Knappenwand, Untersulzbachtal, Salzburg, Austria - Connoisseur's Choice Rocks & Minerals - Find Articles (Site not responding. Last check: 2007-10-20)
		Epidote occurs as interesting aggregates in miarolitic cavities in granitic batholiths and occasionally is seen as an important mineral in pegmatites.
		Epidote crystals to 5 cm have been found in the emery mines of Chester and from near Norwich, Hampshire County, Massachusetts; various other Massachusetts epidote specimen localities are given in the older literature as Worthington, Hawley, Warwick, Huntington, Woburn, and Deerfield.
		Exceptional specimens of anomalously tabular epidote in jackstrawlike aggregates, twinned reticulated groups, and single crystals to 12 cm in length and occurring with well-crystallized albite were produced from a pocket-beating "vein" on the former Clarence Wilson farm near Bakersville, Mitchell County, North Carolina.
	www.findarticles.com /p/articles/mi_m0GDX/is_5_77/ai_90983546 (968 words)

	Granite Countertops and Vanity Tops at All Granite And Marble Corp
		Belonging to the same isomorphous group with epidote are the species piemontite and allanite, which may be described as manganese and cerium epidotes respectively.
		In external appearance it differs widely from epidote, being fl or dark brown in color, pitchy in lustre, and opaque in the mass; further, there is little or no cleavage, and well-developed crystals are rare.
		The crystallographic and optical characters are similar to those of epidote; the pleochroism is strong with reddish-, yellowish-, and greenish-brown colors.
	www.marble.com /countertops/encyclopedia/79/epidote.html (518 words)

	Epidote information
		Epidote forms in metamorphic rocks and metamorphosed limestones, altered igneous rocks, pegmatites, and in traprocks with zeolites.
		Epidote is often found on shrinkage seams in granite, formed from the last gases or solutions to escape.
		Epidote is commonly crystallized, including long, somewhat prismatic or tabular crystals or in long, slender, grooved prisms, which are actually stretched out along a horizontal direction and give the impression that the side faces are slanting.
	www.minerals-n-more.com /Epidote_Info.html (419 words)

	[Ganoksin] - Lets Talk Gemstones - Uncommon Sorosilicate Gemstones - The Epidote group
		Epidote is the iron-rich end member of a solid solution series with aluminum-rich clinozoisite.
		Epidote usually occurs in high-pressure, low-temperature calcium-bearing metamorphic rocks and as precipitates from magmatic fluids in igneous formations.
		The granite composed of greenish epidote and pink feldspar found in Zimbabwe and in extensive deposits in the United States is called unakite.
	www.ganoksin.com /borisat/nenam/Sorosilicate.htm (1878 words)

	Thaigem.com \| Info Center \| A-Z Gemstones \| From Gemology To Mythology Learn More About Epidote At Our A-Z Gemstones
		Epidote is best known among mineral collectors for its unique “pistachio” green color, which is quite striking in well-colored specimens.
		Despite its hardness and deep color, Epidote is not commonly cut and polished as a precious gem because the crystals rarely are clear or large enough to facet.
		Epidote is noted by spiritual healers for its ability to enhance perception and intuition, increasing spirituality and spiritual growth.
	www.thaigem.com /a-z_gemstones/dis_epidote.asp (232 words)

	Epidote
		Epidote is a complex mineral that has both single and double silica tetrahedrons.
		Epidote is formed in hydrothermal fluids and and metamorphic rocks at cooler temperatures and pressures.
		Epidote is used to strengthen overall health, the heart, well being, energy, courage and stamina.
	www.und.edu /instruct/mineral/geol318/webpage/schmidt (423 words)

	Mineral Description (Site not responding. Last check: 2007-10-20)
		This description is for epidote, however note that there exist several varieties of epidote, e.g., zoisite, clionzoisite, each of which have different optical properties and may all be present in the same thin section.
		Equigranular epidote, with actinolite and hornblende within a metamorphosed mafic lithology.
		epidote is distinguished from clinozoisite by optic sign, birefringence, and colour.
	www.brocku.ca /earthsciences/people/gfinn/minerals/epidote.htm (186 words)

	Epidote (Site not responding. Last check: 2007-10-20)
		The color of epidote can vary from colorless gray streaks to yellowish green and brownish fl;.
		the epidote the has formed in granit pigmarites with calcite.
		Epidote is from the Greek word epi "over" and didonai which means to give.
	www.capecodrocks.com /epodite.htm (40 words)

	Epidote Group Spectra (Site not responding. Last check: 2007-10-20)
		The common members of the epidote group minerals consist of allanite, clinozoisite, epidote, piemontite and zoisite.
		The color of clinozoisite and epidote is due to their Fe content and commonly varies from amber to brown.
		RDS 72 epidote spectrum, 6K; 1.0 mm thick olive-green crystal also from Pakistan with 8.84 wt% Fe described in Shannon and Rossman (1992) Phys Chem Min.
	minerals.gps.caltech.edu /FILES/Visible/epidote/index.htm (184 words)

	untitled (Site not responding. Last check: 2007-10-20)
		The Epidote crystal groups are up to 3.2 cm long and the Quartz crystals are up to 3.5 cm long, size 5 x 4.5 x 2.1 cm.
		Epidote fans smothered with double terminated Quartz on all sides.
		The Epidote crystal groups are up to 3.6 cm long, size 5 x 4 x 2.8 cm.
	www.marinmineral.com /epidote.html (259 words)

	Epidote Page. Quartz 'N' All - High Quality Crystals, Minerals and Fossils
		Epidote associated with garnet, diopside, idocrase and calcite in impure limestone in contact aureoles.
		Pumpellyite is a widely distributed, hydrous Epidote like mineral and is found in low grade metamorphosed tufts, and also in the vesicles of ancient lavas.
		Epidote is a widespread mineral and is common in medium or low grade metamorphic rocks which have formed wither from calcareous, or basic rocks.
	www.quartznall.co.uk /learnepidote.htm (336 words)

	Astrology & Gemstones, Birthstones: Epidote Gem for Gemini, Virgo - Gems shop online
		Epidote is not commonly cut and polished as a precious stone because the crystals rarely are clear or large enough to facet.
		Epidote is noted for its ability of enhancing perception and intuition, supplementing personal power, and increasing spirituality and spiritual growth.The epidote is a medicating influence, and may be carried on or about the person to ensure protection against confliciting circumstances.
		Epidote also works to heal intestinal blockages due to nervous disorders affecting the stomach.
	www.findyourfate.com /gemology/gemstones/Epidote.html (233 words)

	Epidote, rock, crystal, mineral, gem stone, birth stones - mineralgallery (Site not responding. Last check: 2007-10-20)
		A calcium aluminosilicate, epidote forms pistachio-green to dark-green elongated crystals (monoclinic system), disseminated grains, or fibrous or granular masses that have perfect cleavage in one direction.
		Epidote is a structurally complex mineral having both single silicate tetrahedrons, SiO4, and double silicate tetrahedrons, Si2O7.
		The two aluminums represent the parallel chains of AlO6 and AlO4(OH)2 octahedra that are the heart of the epidote structure.
	www.mineralgallery.co.za /epidote.htm (198 words)

	Botryoidal Prehnite Cluster with Epidote For Sale
		This is a Botryoidal Prehnite Cluster with Epidote.
		Epidote is able to enhance our focus of power and has come to be known as the Stone of Personal Power.
		Epidote offers also offers a greater focus of power to the crystal in which it resides.
	www.crystalascension.com /crystals/x3573.html (145 words)

	Epidote Group Information
		Silicates are the most abundant class of minerals comprising 75% of all known minerals and 40% of all common minerals.
		Epidote Group minerals could be classified as nesosilicates but the higher organization of the Si groups places them in the sorosilicate subclass.
		The epidote group is composed of a number of members.
	www.minerals-n-more.com /Info_Epidote_Family.html (231 words)

	Alan Guisewite's Mineral Collection Images: Systematic Sorosilicates Page
		Sharp dark green epidote crystals with smoky quartz on albite from the Santa Teresa Mountains, Graham County, Arizona.
		Glossy green euhedral crystals of epidote on peach microcline comprise this small cabinet specimen from the famous Calumet Iron Mine, near Salida, Chaffee County, Colorado.
		A miniature of sharp equant deep-green epidote crystals from the Calumet Mine, Turret District, Chaffee County, Salida, Colorado.
	www.cs.cmu.edu /People/adg/adg-psssimages.html (3494 words)

	Piemontite-Epidote-Quartz Specimen Photos
		This specimen is from a quartz epidote pod exhibiting en echelon fracture.
		The red of the piemontite forms a nice contrast with the green of the epidote.
		Piemontite is the relatively rare manganese bearing member of the epidote family.
	www.gamineral.org /hp-wfcf-specimen-photo-peq.htm (49 words)

	Epidote,Epidote Mineral,Epidote Information,Epidote Uses
		Epidote is a structurally complex mineral having both single silicate tetrahedrons, SiO
		octahedra that are the heart of the epidote structure.
		Epidote, while not general known for exceptional crystals can produce some magnificent specimens.
	www.mineralszone.com /minerals/epidote.html (126 words)

	Epidote
		Pakistani epidote has a great color and is an interesting faceting rough to cut.
		One of the things that make it interesting is the fact that it has 2 different colors on the a-b axis it is a tan on one axis and green on the other, especially under fluorescent lighting.
		This epidote rough is ranging in size from a small of 1+cts up to 11+cts.
	www.gemstonesandrough.com /html/epidote.html (193 words)

	American Mineralogist
		Fully one-half of the minerals of Providence county are found within the limits of this township.
		Quartz, epidote and hematite are common while fluorite and galena are more or less abundant.
		Rhombs, in green schist with epidote and quartz.
	www.minsocam.org /msa/collectors_corner/arc/rimin1.htm (448 words)

	Clinozoisite and Epidote from Pakistan - Brief Article Rocks & Minerals - Find Articles (Site not responding. Last check: 2007-10-20)
		Epidotes tend to be quite dark, often nearly fl, whereas clinozoisites tend to be light in color, even colorless at times, and often quite transparent, as in the illustration.
		The darker crystals, which are epidote, appear to have come from the southwest side of the Haramosh Range, somewhere near the Tormiq River along the road from Skardu to Shengus to Gilgit, and also from the Shuut Nala, about 3 kilo-meters above and east of Hunachal on the Gilgit-Skardu Road.
		It is probably safe to conclude that if the crystals are light in color and quite transparent, and the given locality is on the northeast side of the Shigar River above the villages of Hashupa and Alchuri, the crystals are clinozoisite.
	www.findarticles.com /p/articles/mi_m0GDX/is_5_76/ai_78166778 (637 words)

	Epidote Structures (Site not responding. Last check: 2007-10-20)
		The Epidote group is composed of minerals of the general formula Ca
		Zoisite is orthorhombic with Z = 4 whereas clinozoisite and epidote are isostructuiral monoclinic and have Z = 2.
		Epidote is the name give to the green variety that contains Fe in substitution for AL in one of three octhedral sites.
	ruby.colorado.edu /~smyth/min/epidote.html (167 words)

	Geothermal Reservoir System I Posters - Nonlinear Geophysics [NG]
		The Fe(III)-mol fraction of epidote at depths between 0.5 to 1 km ranges from 0.24 to 0.38, between 1 to 2 km depth the range is 0.17 to 0.48 and between 2-3 km it is 0.17 to 0.30.
		Using epidote and prehnite compositions and thermodynamic analysis of this assemblage, the calculated P$_{CO2}$ of the fluid that formed Fe(III)-rich cores from 1 to 2 km depth was between ~0.2 and 1.0 bar, while the Al-rich rims formed from calculated fluid P$_{CO2}$ levels of between 1.0 and 6.5 bars.
		The Fe(III)-rich epidote between 0.5 and 1 km indicates a paragenesis with P$_{CO2}$ levels of between 0.008 and ~2.0 bars while Al-rich epidote between 2 and 3 km depth intimate fluid P$_{CO2}$ levels of between 3.5 and 10.0 bars.
	www.agu.org /meetings/fm06/fm06-sessions/fm06_NG43A.html (3358 words)

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