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	Prehnite - LoveToKnow 1911
		Prehnite is sometimes classed with the zeolites, since it occurs under the same conditions as these minerals and often in association with them: the small amount of water (4-4%) is, however, expelled only at a red heat and is therefore not water of crystallization.
		Prehnite occurs as a mineral of secondary origin in the amygdaloidal cavities of basic igneous rocks, such as basalt and diabase, and less often, in veins in granite and gneiss.
		Prehnite is sometimes cut and polished for small ornaments; it then somewhat resembles chrysoprase in appearance.
	www.1911encyclopedia.org /Prehnite (315 words)

	Prehnite
		Prehnite is found in faintly yellowish-white coarse lamellar to platy aggregates, some of the plates being in fan-shaped groups.
		The early analyses gave quite unsatisfactory ratios for prehnite until it was discovered that the mineral was mixed with pectolite, but after correction for the presence of enough of that mineral to account for the alkalies found, both gave fairly satisfactory ratios.
		After it was learned that pectolite is fluorescent under the iron-arc spark, whereas prehnite is not, some of the material from which analysis 2 was made was again separated, first in a heavy solution and finally under the spark, and thus a sample almost free from pectolite was obtained.
	franklin-sterlinghill.com /palache/prehnite.stm (496 words)

	PREHNITE - crystal mineral Rocks & Minerals - Find Articles (Site not responding. Last check: 2007-11-03)
		Prehnite is best known in shades of green that vary from pale to very dark.
		Prehnite is one of a relatively large number of calcium aluminum silicates and has the ideal formula [Ca.sub.2][Al.sub.2][Si.sub.3][O.sub.10][(OH).sub.2].
		Prehnite specimens to 1.8 meters across were once collected from a road cut along Route 80 in Passaic County, New Jersey.
	www.findarticles.com /p/articles/mi_m0GDX/is_3_74/ai_58915107 (786 words)

	Prehnite - Wikipedia, the free encyclopedia
		Prehnite was the first mineral to be named after a person.
		Prehnite nodule showing cleavage planes where it has separated from a cluster, 5.5cm diameter, 134 grams.
		Sliced Prehnite fragment with calcite core, 9.0 cm diameter.
	en.wikipedia.org /wiki/Prehnite (264 words)

	Prehnite from the Kalahari manganese field and its implications on ore genesis (Site not responding. Last check: 2007-11-03)
		The existence of prehnite in the Kalahari manganese field provides evidence in support of low-temperature (150-250°C) formation of the mineral and possible metamorphism in the north-westernmost portion of the field, but its importance in terms of processes involving metal upgrading in the Kalahari manganese ores is uncertain.
		Prehnite is normally green in hand specimen and is commonly associated with hydroxyapophyllite and zeolites such as natrolite, chabazite and stilbite.
		Prehnite is a common secondary mineral hosted in mafic lavas, and the Triassic dolerites of New Jersey in North America are well-known for cavities containing spectacular prehnite.
	www.irocks.com /prehn.htm (2647 words)

	Prehnite
		Prehnite is a typical hydrothermal mineral, produced at the expense of basic plagioclases in gabbroic rocks and amphibolites (Kostov, 1968).
		Prehnite is pale to medium green, pinkish tan to tan, pale yellow, gray and white.
		Prehnite can be confused with lawsonite, pumpellyite, epidote and datolite; prehnite has a higher birefringence than all of these minerals.
	www.und.edu /instruct/mineral/geol318/webpage/salinas (398 words)

	PREHNITE Chapter 18. Phyllosilicates - layer silicates
		Prehnite was first reported from Franklin by Palache (1935); it had been studied at the end of the last century by C. Warren when the minerals from the Parker Dump were first encountered and a number of new species described.
		The main assemblage for Franklin prehnite is from the Parker Mine and consists of large massive specimens composed mostly of prehnite, pectolite, margarosanite, manganaxinite, franklinite, and andradite, with minor amounts of willemite, mica, hancockite, xonotlite, and clinohedrite.
		A less abundant occurrence of Franklin prehnite is one consisting of spherules, up to 4 cm in diameter, of radiating prismatic crystals.
	franklin-sterlinghill.com /dunn/ch18/prehnite.stm (375 words)

	PREHNITE (Calcium Aluminum Silicate Hydroxide)
		Prehnite was named after its discoverer; Colonel Hendrik von Prehn and is an attractive collection mineral that is occassionally used for ornamental stone purposes.
		Prehnite is often found with zeolites and is sometimes thought of as a zeolite.
		Prehnite is harder than all of these and lacks smithsonite's unusual luster.
	mineral.galleries.com /minerals/silicate/prehnite/prehnite.htm (384 words)

	Astrology & Gemstones, Birthstones: Prehnite Gemstone - Gems shop online
		Prehnite is a hydrous, calcium-aluminum-silicate mineral, which is commonly found in cavities and "pillows".
		Prehnite is an attractive mineral that can have a very good luster.
		Prehnite was the first mineral to be named after a person, the Dutch minerologist Colonel Hendrik von Prehn, who discovered the mineral in Jurassic (Karoo) dolerite in the Cradock district of the Eastern Cape Province in the early 18th Century.
	www.findyourfate.com /gemology/gemstones/Prehnite.html (166 words)

	Prehnite from Wave Hill, Northern Territory is the finest prehnite in the world. Amethyst, agate, smoky quartz, beta ...
		Prehnite is regarded as a rare precious gem and Australia has about 90% of the world's resource of this beautiful gemstone.
		As well as prehnite, a number of other minerals are also found at Wave Hill such as agate, amethyst, amethyst geodes, beta quartz, calcite, chalcedony, chalcedony pseudomorphs after calcite and other minerals, hematite, iceland spar, natrolite, quartz, smoky quartz, scolecite and, possibly, other zeolites.
		Prehnite any be in solid nodules completely free from basalt, but, when polished the true beauty and clarity may be revealed.
	www.openallday.au.com /Wave_Hill_Prehnite.html (1495 words)

	Prehnite
		Prehnite Nuggets measuring 10.2x13.4x7.7 to 14.5x21.2x10.15 mm, 17 pcs., 233.56 carats, 10" strand.
		Gem Prehnite in a faceted rondelle shape that graduates from 5.90x5.1 to 10.95x8.5 mm, 213 carats, 16" strand.
		These are Prehnite 'Onions' which are basically facetd rounds with a pointy drilled end.
	www.migem.com /Categories/Prehnite/prehnite.htm (711 words)

	PREHNITE - Online Information article about PREHNITE
		Prehnite is sometimes classed with the See also:
		Prehnite occurs as a mineral of secondary origin in the amygdaloidal cavities of basic igneous rocks, such as See also:
		Prehnite is sometimes cut and polished for small ornaments; it then somewhat resembles See also:
	encyclopedia.jrank.org /POL_PRE/PREHNITE.html (460 words)

	prehnite.htm (Site not responding. Last check: 2007-11-03)
		Description: Prehnite is most often found as a vein or amygdule mineral in basaltic volcanic rock subjected to low grade burial metamorphism or hydrothermal activity.
		BAYFIELD COUNTY: Prehnite is found in pits and shafts in amygdaloidal basalts at the old Montrose copper prospect near Upper Eau Claire Lake in the NW NW sec.
		- Prehnite is found with quartz, chlorite, K spar, calcite and native copper in amygduloidal porphyritic basalts along the south side of the Moose River in the NW sec.
	www.uwrf.edu /~wc01/Prehnite.htm (505 words)

	prehnite rock specimen
		In metaphysical terms Prehnite is thought to be a protective stone and strengthen the life force and aid in regeneration whilst stimulating energy flow and information.
		This is a delightful piece of almost pure prehnite which is free of matrix but has a little white calcite that contrasts with the delicate green color of this prehnite mineral specimen.
		This Prehnite would be excellent for meditation, healing or as a dream stone.
	www.metastones.com /prehnite.htm (245 words)

	Chinese Minerals; Babingtonite with Prehnite (Site not responding. Last check: 2007-11-03)
		A pale green crystallized prehnite matrix measuring 5.2 x 4.7 x 4.3 cm in size is hosting excellent lustrous fl babingtonite crystals to 16 mm in size.
		A crystallized quartz and prehnite matrix measuring 12.2 x 8.4 x 3.7 cm in size, the top liberally coated by lustrous fl blocky crystals of babingtonite to 1 cm in size.
		The back of the matrix is actually a very fine prehnite specimen, coated by crystallized water clear quartz and scattered with pale green crystallized spheres of prehnite to 13 mm in diameter.
	www.danweinrich.com /manganbabingtonite.htm (725 words)

	Jade and Prehnite Jewelry at The Artful Soul
		PREHNITE is a pale celery-to-mint green in translucent formation, that has been a rare find until Australian deposits were found.
		Necklace includes 5 large prehnite pieces, and 5 smaller oval apple green peridot, with 2 rectangular RIVER PEARLS of irregular surfaces to gleam pastel mother-of-pearl colors.
		A large cabochon of pale green PREHNITE is mostly clear with a bit of cloudiness on one corner, the stone glows nicely.
	www.artfulsoul.com /store/pagejade.html (1566 words)

	[No title]
		The photos above illustrate typical prehnite occurrences, in veins in low grade metamorphic rocks.
		On the left, in plane polarized light, is a thin vein with pumpellyite and clear, elongate crystals of prehnite.
		On the right, under crossed polarizers, prehnite birefringence is displayed.
	sorrel.humboldt.edu /~jdl1/web.page.images/prehnite1.html (98 words)

	Multicolour.com > Gem Library > Gemstones Varieties > Prehnite
		Prehnite is an orthorhombic mineral which is rarely found as distinct crystals.
		Prehnite is rarely clean enough for faceting but some is cut en cabochon and may also display a cat's eye in some cases.
		Prehnite(s) are organized in the following categories: Single, gemstones.
	www.multicolour.com /gemstones/prehnite.html (304 words)

	Etsy :: Red aventurine flowers and prehnite beads post earrings
		There is one carved red aventurine flower centered between with pale green prehnite 4mm round beads.
		Some people believe that red aventurine is considered beneficial for shyness and persons who worry too much and it is also thought to help quiet critical self-talk.
		Prehnite is thought to help improve endurance and perhaps prophecy.
	www.etsy.com /view_item.php?listing_id=39506 (206 words)

	RealMagick Article: Prehnite by Rhiana Moonstar
		Because it can carry one into both the sub-conscious and the earth's astral it has become known as the "Prediction Stone", and as such is much in demand by channelers.
		Before you go contacting entities make sure you have some understanding how to let them go, how to ascertain that you are truly in touch with the same energy (entity), and that you have some knowledge in limiting the vital life force any discarnate entity can absorb from you.
		Prehnite is par excellence for visualizations of any kind.
	realmagick.com /articles/62/262.html (348 words)

	Trinity Mineral Co - The Munich 2000 Show
		7.3 x 5.5 cm specimen of light olive green prehnite with small crystals of acicular clinozoisite.
		7.5 x 4.2 cm specimen of light olive green prehnite with small crystals of acicular clinozoisite.
		9.6 x 7.5 cm specimen of light olive green prehnite with small crystals of acicular clinozoisite to 0.8 cm in length.
	www.trinityminerals.com /ms2000/prehnite.shtml (99 words)

	Prehnite (Site not responding. Last check: 2007-11-03)
		GENESIS : prehnite is deposited mainly as secondary or hydrothermal mineral in hollows inside basic igneous rocks (often in association with zeolites)
		HISTORY: it takes the name from Dutch colonel H. Von Prehn (1733-1785) that found this mineral in South Africa; the declaration of the discovery was made, subsequently his death in 1788 by Werner
		COMMENT : observing color, habits and association is nearly impossible not to diagnose the prehnite, a mineral that a indelebile memory in who does not leave observes it, but that in the long run he turns out an pleasant champion to hold in collection
	www.minerali.it /minerali2/p/prehniteenglish.htm (194 words)

	Tres Rose ~Going Ga-Ga For Green~ Prehnite and Freshwater Pearl Bracelet - b-green (Site not responding. Last check: 2007-11-03)
		Gorgeous light green prehnite stones have been cut into rondells and facetted for extra sparkle.
		The prehnite has metaphysical properties to helps one awaken and attune to the higher frequency impulses of their divine potential and assists the integration of that potential into present reality.
		The spring green freshwater pearls are top drilled and dance along with the prehnite stones.
	www.rubylane.com /shops/dublinrosedesigns/item/b-green (226 words)

	Prehnite Gallery
		Prehnite Hill, Litell Rocks, North Victoria Land, Antarctica
		Cabinet with 2 dozen finger of prehnite, not very lustrous and color is a pale green, not corresponding with brandberg or India.
		Pale green Prehnite with micro Pyrite on coarse grained Dolerite.
	www.mindat.org /gallery.php?min=3277 (221 words)

	The Arkenstone: Fine Mineral Specimens
		A gorgeous, 3-dimensional, arborescent cluster of prehnite stalks!
		A beautiful 3 cm ball of translucent prehnite on a natural pedestal of epidote!
		A complete-all-around ball of translucent prehnite, perched on a doubly-terminated epidote crystal!
	www.irocks.com /denver05prehnites.html (425 words)

	Prehnite Silver Jewelry Faceted Earrings, Necklace, Bracelet
		Gem-grade Prehnite is a rare, transluscent to transparent, semi-precious gemstone, usually either green, clear or yellow in color.
		Considered a feminine stone with masculine properties and wearing Prehnite Jewelry is thought to improve endurance rather than strength.
		This gemstone is considered so strong in this regard, that Obsidian is recommended in conjunction with Prehnite to ground the spirit.
	www.luckygemstones.com /prehnite-jewelry.htm (547 words)

	Prehnite & Epidote
		I think the epidotes with prehnite are very unique.
		PE3 Epidote and Prehnite $75 Size: 3.9 x 2.3 x 2 Single terminated epidote.
		PE5 Epidote and Prehnite $65 Size: 4.5 x 3.3 x 2 Single terminated epidote.
	www.kcminerals.com /prehnite.htm (283 words)

	Prehnite Jewelry
		This sterling silver pendant was handcrafted with open back settings and set at the top with a 26x18mm oval shaped cabochon gem of natural prehnite with beautiful light greenish yellow natural color.
		This large sterling silver pendant was handcrafted with open back settings and set at the top with a 36x26mm oval shaped cabochon gem of natural prehnite with very beautiful light greenish yellow natural color.
		We do have a limited inventory of natural prehnite items in stock, so be sure to let us know if you have any genuine prehnite jewelry special requests.
	www.mineralminers.com /html/prejlry.stm (447 words)

	Prehnite
		Prehnite is a complex silicate often found in the lining in the cavities of volcanic rocks.
		They range in color from white, gray, yellow to chartreuse green and can take globular, prismatic & tabular crystal forms.
		Permission is required for reproduction of any part of this work.
	www.satyacenter.com /store/crystal/prehnite (118 words)

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