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Topic: Pallasite

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	How to buy a specimen of the Brenham, Kansas pallasite meteorite
		Due to the giant pallasite's unique nature, we do not wish to remove any samples from it.
		However, in addition to the 1,400-lb pallasite, a few smaller masses have been recovered by Steve Arnold and his team.
		Sale material is not taken from the 1,400-lb pallasite, but from others pallasitse from the same fall, found in the same field, and at the same time as the World Record Meteorite.
	www.worldrecordmeteorite.com /sales.htm (161 words)

	Faceting_Pallasite_Peridot
		Pallasite is the unique combination of an iron-nickel alloy with olivine, a meteorite dotted with interplanetary peridot dated at 4.5 billion years old.
		Many of the olivines in pallasite are barely thick enough to facet, which is why pallasite is mostly seen as slabs that can be set in pendants, sometimes accented with diamonds.
		It is thought that pallasite sustained meltdowns in outer space while still in the asteroid stage, and this effect caused the iron-nickel cores to fuse with the olivine mantles.
	www.attawaygems.com /NMFG/Faceting_Pallasite_Peridot.html (885 words)

	pallasite
		A specimen of a pallasite that fell near Albin, Wyoming.
		Pallasites are igneous in nature and characterized by crystals of olivine, often peridots (clear, green olivine crystals of gem quality), embedded in a matrix of iron-nickel.
		Pallasites are believed to have come from the core/mantle boundary of differentiated asteroids that were broken apart by impact.
	www.daviddarling.info /encyclopedia/P/pallasite.html (237 words)

	PALLASITES: SPECIAL EDITION
		A pallasite was seen to fall on May 16, 1981, and a single 253.5 kg mass was located a short time thereafter along the Omolon River in the Magadan region of the USSR.
		These three pallasites have the highest Fa value and the highest Ni content of all other pallasites, and their chromium and oxygen isotope systematics suggest that a genetic relationship exists between the EST pallasites and the CV3 parent body.
		This pallasite is unusual for its Ir enrichment and moderate As and Au enrichment in metal.
	www.meteoritestudies.com /piatek.htm (1181 words)

	PSRD: Meteorite QUE 93148: Asteroid Mantle Material?
		Pallasites are stony iron meteorites that consist predominantly of large olivine crystals in a metal matrix (see the photo below.) They are generally thought to represent material from the core-mantle boundary of an asteroid.
		UE 93148 cannot be directly related to the pyroxene pallasites because of their different oxygen isotopic compositions, but its oxygen isotopes are similar to the main group pallasites (and the crustal HED meteorites).
		If the main group pallasites and the HED meteorites are indeed from the same parent body and if this parent body is in fact the asteroid 4 Vesta (two big unresolved 'ifs') then QUE 93148 might be our first sample from the mantle of this asteroid.
	www.psrd.hawaii.edu /Jan03/QUE93148.html (2494 words)

	Seymchan Pallasite Meteorite Specimens
		Pallasites are thought to be from the core of asteroids that were broken apart on impact.
		Pallasite meteorites are one of the most rare iron meteorites in the world.
		Two other pallasites are from Argentina (Esquel) and Chili (Imilac).The combination of nickel iron and transparent olivine or peridot gems sets these meteorites in a class of their own.
	www.towercrystals.com /meteorites/pallasite/seymchan/index.html (261 words)

	Snapshots from the 2006 Show: Stones at the Inn Suites
		Pallasites are a type of stony-iron meteorite, which is the rarest general type, The stony-irons are mixtures of nickel-iron and silicate minerals believed to originate within the mantle of a differentiated parent body.
		Pallasites are primarily composed of nickel-iron and olivine, mesosiderites of nickel-iron and eucrite/diogenite, and lodranites of nickel-iron, bronzite, feldspar, olivine and triolite.
		Pallasites are the most common type of stony-irons but are rare meteorites, with probably less than one percent of all meteorites being pallasites.
	www.rockhounds.com /tucsonshow/reports/tucson2006/p3.shtml (1520 words)

	K4ZRD Pallasite Definitions, All Rights Reserved, Created July 15, 2004
		Based on their origin and formation history, the pallasites are regarded as samples of core/mantle boundary material from differentiated asteroids, inferring that a close relationship exists to the iron meteorites.
		The main group also comprises the only three witnessed pallasite falls, one of which is the renowned and visually attractive Marjalahti, a meteorite that fell in the Karelian Republic, Russia, in 1902.
		Both pallasites contain minor clinopyroxenes, which occur as inclusions in the olivine crystals, as large grains in the nickel-iron matrix, and as grains bordering the olivines.
	www.k4zrd.com /Pallasite.html (1060 words)

	Mystery of the Lost Port Orford Meteorite @ Re-QUEST dot Net (tm) \|\|\| Lakeside Meteorite
		It wasn't until 1859 that the sample was actually analyzed by Dr. Charles Jackson, a Boston chemist, who determined that the sample was that of a rare pallasite meteorite made up of translucent crystals of olivine (the semi-precious gemstone "Peridot") that are suspended in a iron-nickel matrix.
		So rare is pallasite that only about 1% of all meteorites found to have landed on Earth are of this kind.
		Pallasite originated in the mantle-core boundary of a large planetary body that broke apart when it collided with an asteroid belt between Mars and Jupiter over 4 billion years ago.
	www.re-quest.net /mystery/meteorite/index.htm (884 words)

	Astronomy - More meteorites from "Oz" - Michael Bakich
		Pallasites are a class of stony-iron meteorite, a fusion of metal and mineral.
		This pallasite slice is from Brahin, Minsk, Gomel Province, Belarus.
		Pallasites have olivine or pyroxene crystals distributed throughout a nickel-iron matrix and are considered the most beautiful of meteorites.
	www.astronomy.com /asy/default.aspx?c=a&id=4592&r=rss (463 words)

	Untitled (Site not responding. Last check: )
		The first pallasite was described in 1772 by Pyotr Pallas.
		Pallasite is also known in quantity from Kiowa County, Kansas, from the Imilac pallasite that fell in desert of Chile and the Salta pallasite of Argentina.
		Then the pallasite "ore" would have to be recovered by interplanetary "hard-rock" mining.
	www.uwrf.edu /~wc01/PeridotAst.html (652 words)

	Pallasite Meteorite Pendant Jewelry (Site not responding. Last check: )
		Pallasites are the most beautiful form of meteorite jewelry.
		The name "pallasite" comes from the name of the German naturalist Peter Simon Pallas who first took interest in pallasites and described it in his writings, in 1772.
		The olivine (peridot gem variety) in pallasites is magnesium-rich and shows signs of "shock" and impact, which occurred in outer space.
	www.sciencemall-usa.com /pamepeje.html (296 words)

	World Record Meteorite, 1,400 Brenham pallasite found in Kansas by Steve Arnold meteorite hunter
		Excavated from its resting place seven-and-a-half feet underground, it is the largest pallasite ever recovered in the United States, and the largest oriented pallasite in history.
		Pallasites are an extremely rare class, accounting for only about 1% of all known meteorites.
		Pallasites are packed with beautiful translucent crystals of olivine (the semi-precious gemstone peridot) suspended in a nickel-iron matrix, and are thought to have formed at the core/mantle boundary of an ancient celestial body.
	www.worldrecordmeteorite.com (0 words)

	Brenham, Kansas Meteorite, Pallasite, Siderite, Brenham Meteorite Company, Steve Arnold Oriented Pallasite
		Brenham, Kansas Meteorite, Pallasite, Siderite, Brenham Meteorite Company, Steve Arnold Oriented Pallasite
		These slices are from a mass found by Steve Arnold and Dr. Denton Ebel (AMNH, New York) during 2006.
		They are from the same fall as the 1,430-lb world record pallasite found by Steve and currently on display at the "Exploration Place" science museum in Wichita.
	www.aerolite.org /brenham.htm (0 words)

	[No title] (Site not responding. Last check: )
		The Brenham pallasite was found in Brenham, Kiowa County, Kansas U.S.A. in 1882.
		Due to the highly fractured nature of the olivine crystals, prepared slices should be a minimum of 5-6mm thick.
		Any prepared surface should be thoroughly flushed and stabilized to reduce oxides from developing under the crystals.
	www.meteorlab.com /METEORLAB2001dev/brenham.htm (71 words)

	World's Largest Pallasite Meteorite
		One of the most inclusive descriptions is as follows: Half iron and half stone, the Pallasite Meteorite (Space Wanderer) on display in the Celestial Museum at the Big Well in Greensburg, is the largest meteorite of its kind yet discovered.
		In 1949, H.O. Stockwell, with the aid of a modern metal detector and equipment rigged at the Peck farm, uncovered the largest pallasite found to date,The Space Wanderer, weighing 1000 pounds.
		The pallasite was placed in the Greensburg Big Well Museum in 1949, where it has been on display and is seen by many thousands of tourists each year.
	www.worldslargestthings.com /kansas/pallasitemeteorite.htm (570 words)

	R.A.S. Proceedings -- Three New Chilian Meteorites (c) 1998 Rochester Academy of Science
		In this it differs from pallasites of the Imilac and the Krasnojarsk group, where the cells have almost uniformly rounded walls, conformed to the rounded, instead of angular olivine crystals.
		In Plate 23 one of the patches of olivine is visible on the surface at left hand of the upper mass; and two of them show in the lower mass.
		By careful separation of the olivine from the iron particles in 200 grams of the matter, as it fell from the machine in the rutting, we found the former to be 70 grams and the latter 130 grams; a ratio of 54 per cent.
	www.rasny.org /V4P225-3.HTM (2611 words)

	[No title] (Site not responding. Last check: )
		Located less then three miles from the Algerian border, this strewn field is a closed (and mined) military zone.
		This is one of only three known Moroccan Pallasite meteorites...compared to thousands and thousands of chondrites.
		Many of the olivine crystals in the non-shale version of this pallasite have a “schiller effect” to them.
	www.meteoritearticles.com /colalmahbas.html (216 words)

	[No title]
		Sophisticated metal detectors initially detected what had been thought to be the largest pallasite meteorite ever discovered, but ground penetrating radar showed the object to be a steel cable.
		Pallasite meteorites are known for their crystals embedded in iron.
		The team still uncovered a sizable pallasite buried four feet under the ground and located a quarter-mile from where a pair of meteorite hunters found the world's largest pallasite meteorite a year ago.
	www.wbir.com /printfullstory.aspx?storyid=38766 (132 words)

	The Hambleton Pallasite Meteorite
		Hambleton is a main group pallasite, but with some interesting and very unusual anomalies.
		Sulphides are abnormally abundant for a pallasite and some regions <5 cm across are composed almost exclusively of troilite, enclosing minor fragmented olivines.
		The outer 1 cm of the mass is terrestrially weathered, with veins of Fe oxides and patches of a blue phosphate mineral.
	fernlea.tripod.com /hambleton.html (423 words)

	Answers.com: Say What?: pallasite (Site not responding. Last check: )
		Scientists are excited about the recent discovery of an underground pallasite meteorite in Kansas because they believe they can use the same technology to find meteorites or water buried on Mars.
		However, the fact that pallasite meteorites contain iron caused a bit of confusion at first:
		"Fewer than 1 percent of the meteorites discovered on earth are pallasite meteorites, known for their crystals embedded in iron, Mani said.
	answers.blogs.com /say_what/2006/10/pallasite.html (158 words)

	Meteorite Stony Iron
		This "napoleonic" pallasite is coarser in texture than Esquel and Imilac and it has greenish to amber-colour olivine crystals.
		The main mass was found in 1937 - with its 1411.5kg the largest single specimen of a pallasite, surrounded by 900kg of iron shale.
		This one here is a stone half with a polished cut surface, on which one can discern the former pallasitic structure very clearly.
	www.meteorite-martin.de /english/stoneiron_en.html (568 words)

	NEW METEORITE ACQUISITIONS
		The Springwater Pallasite was first found in 1931, and consisted of three masses of 85 pounds, 41 pounds, and 23 pounds.
		While there is a fair amount of the Springwater Pallasite in several of the well known institutional collections, there is not a lot of this Pallasite in the hands of private collectors.
		Many large examples of this large Pallasite were found, after the initial discovery of a 12 to 15 lb.
	www.minresco.com /meteor/meteor2.htm (826 words)

	World's Largest Hand-dug Well, Greensburg, Kansas (Site not responding. Last check: )
		In Kansas, the Big Well and the World's Largest Pallasite Meteorite are two such strange bedfellows -- a hole in the ground and an astral hole-maker.
		The well had a small part in the race between the Sante Fe and Rock Island railroad lines, which were frantically building west in the late 19th century.
		Dubbed the "Space Wanderer" when discovered in 1949, the 1,000 pound Pallasite boulder was promptly placed in the Big Well "Museum." There it sits today.
	www.roadsideamerica.com /attract/KSGREwell.html (530 words)

	Unusual Meteorite Features (Al Mahbas Pallasite) - Meteorites Australia
		This specimen was retrieved by Mike Farmer on expedition into the area from November 27th - December 3rd, 2004.
		Al Mahbas is a Pallasite meteorite composing olivine crystals in a matrix of metallic iron/nickel and has a Total Known Weight around 3 kilograms.
		In the case of Al Mahbas the metal has weathered into a 'shale' form while the majority of the olivine crystals are still relatively unweathered.
	www.meteorites.com.au /features/almahbas.html (385 words)

	Another Pallasite meteorite found in Greensburg, KS
		Another Pallasite meteorite found in Greensburg, KS Technocrat
		Another Pallasite meteorite found in Greensburg, KS wowbagger
		The Brenham field is well known to be rich in meteorites - 15,000 pounds (6800 kg) so far, and the owner of the property has an agreement to split the proceeds from finds with meteorite hunters.
	technocrat.net /d/2006/10/17/9210 (825 words)

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