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catalogue of western australian meteorite collections

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"Preface<br />

The Meteorite Collection <strong>of</strong> the Western Australian Museum is a small<br />

one but, because it has been made from a part <strong>of</strong> the earth's surface which has<br />

not _been extensively collected, it is <strong>of</strong> great scientific' interest. Accordingly,<br />

this Catalogue by Dr. McCall and Mr. de Laeter is very welcome, particularly<br />

since no list <strong>of</strong> <strong>meteorite</strong>s in the Western Australian Museum has been published<br />

since those in Bernard Woodward's Guides to the Museum in 1900 and 1912.<br />

Knowledge <strong>of</strong> <strong>meteorite</strong>s in Western Australia stems from the discovery<br />

<strong>of</strong> several large lumps <strong>of</strong> meteoritic iron in the 1880's and 1890's when agriculture<br />

was pushing out into the fringes <strong>of</strong> the original York settlement towards<br />

the East. These, <strong>of</strong> which the first appears to have been brought in during<br />

1884, were call~d the "Yo~ndegin Meteorites" after a police post which was<br />

the last out-post <strong>of</strong> civilization at the time; they w~re actually collected near<br />

Pikaring Rock in what is now the well-populated Quairading area. It may be<br />

safely assumed that these were the first <strong>meteorite</strong>s to come into the collection.<br />

They are octahedrites, chiefly interesting because <strong>of</strong> the unusual abundance <strong>of</strong><br />

the rare mineral cohenite.<br />

This was the first milestone in the history <strong>of</strong> these <strong>collections</strong>. Others<br />

that may be mentioned were the discovery <strong>of</strong> the Ballil100 <strong>meteorite</strong> in 1892,<br />

important because it was found to be an octahedrite <strong>of</strong> extreme rarity displaying<br />

a very fine etch pattern; the discovery in 1916 <strong>of</strong> another <strong>meteorite</strong> <strong>of</strong> the same<br />

rare type at Mount Magnet; the discovery <strong>of</strong> the unique Bencubbin stony-iron<br />

<strong>meteorite</strong> in 1930, which was followed by a second find in 1959-no other<br />

<strong>meteorite</strong>s <strong>of</strong> this type, or anything approaching this type, have been recorded<br />

in any part <strong>of</strong> the world. Another event <strong>of</strong> recent years was the fall <strong>of</strong> a stony<br />

<strong>meteorite</strong> at W oolgorong Station on the Murchison in 1960, Both because the<br />

recovery <strong>of</strong> this stone allowed a most interesting study <strong>of</strong> atmospheric ablation<br />

producing orientation characteristics, and also because this fall revived interest<br />

in <strong>meteorite</strong>s in Western Australia. The most recent, and by no means least<br />

significant, increment to our knowledge occurred as late as 1963 when the<br />

Mount Egerton <strong>meteorite</strong>, originally found in 1941 and recorded as a stone <strong>of</strong><br />

very unusual type, was rediscovered after more than a year's fruitless search.<br />

It was found tb be a stony-iron <strong>meteorite</strong> <strong>of</strong> a type hitherto unknown-again<br />

a unique find.<br />

The discoveries <strong>of</strong> probable <strong>meteorite</strong> craters must also be significant, for<br />

only a handful <strong>of</strong> occurrences <strong>of</strong> such craters <strong>of</strong> any dimensions are known<br />

throughout the world and two have been discovered in Western Australia.<br />

The Dalgaranga crater was recorded by E. S. Simpson in 1938 but relatively<br />

little was known <strong>of</strong> it until H. H. Nininger and G. 1. Huss introduced the details<br />

<strong>of</strong> this occurrence to the scientific world. The much larger Wolf Creek crater,<br />

comparable with the world-famous Arizona crater and the lesser-known, analogous<br />

craters <strong>of</strong> Quebec and Algeria, eluded discovery until 1947. In spite <strong>of</strong> gen~ral<br />

accounts by F. Reeves & R. o. Chalmers and by D. J. Guppy & R. S. Matheson<br />

and further discussions by W. Cassidy, L. LaPaz and G. J. H. McCall it remains<br />

a regrettable fact that, as in the case <strong>of</strong> the smaller Dalgaraqga crater, the problems<br />

posed by this enigmatic crater must be considered as yet largely untouched<br />

because <strong>of</strong> lack <strong>of</strong> funds.<br />

The fact that we have such a collection <strong>of</strong> <strong>meteorite</strong>s <strong>of</strong> world-wide significance<br />

must be largely attributed to the interest and continuing scientific<br />

work <strong>of</strong> a very high standard by the late Government Mineralogist, Dr. E. S.<br />

9

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