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TOPIC: Meteorites


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RE: Meteorites
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Meteorite hunters scouring North America for pieces of rock from outer space are confirming something Illinois residents already know: Meteorites are a hot commodity.
A meteorite fall over south suburban  Park Forest and Olympia Fields left a number of impacts through homes and within days meteorites were being analysed by local geological labs.

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Experts say rock-like meteor fragments are rarely round but rather have highly irregular shapes. A fragment that fell recently will have a paper-thin black coat from when it superheated while speeding through the atmosphere. A simple test is to scratch it against the unglazed side of a ceramic tile. A meteorite will not leave a streak.
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Deserts are ideal to find meteorites

It may be one of the world's most inhospitable environments for man, but conditions in the scorching deserts of southern Abu Dhabi are ideal for preserving the fragments of rock and metal that plummet to the Earth's surface from space.
With little rainfall to corrode them, and scant change to the landscape, meteorites can lie undisturbed in deserts for millennia. Thousands have been found in the Empty Quarter in Oman and the deserts of Libya, but until last year there had been no official survey in the UAE.

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Check your house for dust from a meteorite

Using a few materials from around the house you can check to see if space dust has made it into your backyard.

Materials
* Jar
* Magnet
* White piece of paper

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A previous column about meteors and meteorites prompted one reader to wonder why, if there is such a steady stream of them hitting the Earth, they arent lying all over the place.
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Amateur astronomer and author Anthony Whyte says that the exploration of space begins in our own backyard. It's an epic mystery that can fill in the missing pieces of our past and tell how the landscape was, and is, forever changed by each impact.
His new book, The Meteorites of Alberta, is a journey that delves into the history of this province and the explorers who are still peeling away the legends to find the facts.

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The Antarctic meteorite hunters' season from a Meteorite's perspective The ANSMET meteorite hunters 2009-10 season is over; 1010 meteorites were individually sealed in bags, locked in boxes, and kept frozen for their trip from Antarctica to Johnson Space Centre where their secrets will be revealed.
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Imilac Meteorites
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Imilac is a stony-iron that meteoriticists group as a Pallasite. Pallasites are meteorites that are mixtures of metal and silicates, usually olivine grains. Imilac is also a "PMG," which refers to a Pallasite belonging to the main chemical group. Searchers have turned up roughly 900 kilograms of Imilac meteorites over the years. The largest known specimen recovered to date, 198 kilograms, is in the British Museum. A second large Imilac - 95 kg - is in Copiapo, Chile, a mining town and the capital of the Atacama region. Imilac material ranks third in mass among Pallasite meteorites recovered, after Brenham and Huckitta. Imilac is a stable meteorite, having spent most of its "life" in a dry desert environment.
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Around 8:30 PM on April 14, 1968, Mr. Joseph W. Kowalski from Glenville was watching television and heard a strange sound from his roof, according to published sources. It sounded like a firecracker going off in his attic, according to Kowalski. When he went out and took a look he noticed some damage to the roof and found the cause a piece of meteorite that slammed into his house.
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If a meteorite falls on your property, you can lay claim to ownership.

"If it's on your personal property it is yours except in the province of Quebec and there it's a free-for-all for everyone" - Telus World of Science spokesman Frank Florian.

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