Meteorites.html

625 101 METEORITES & TEKTITES

This site is associated with Practical 1 of the 625 101 Global Environment Course. The suggested answer to which can be found here (you will need a Pdf reader for this). There are three main sets of specimens associated with this practical, these are:

Meteorites

Impact Structures

Tektites

Specimens illustrated with permission of the Museum of Victoria

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METEORITES
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Henbury Iron Meteorite E4974

Found in in Henbury, NT.

Click the red box to see thumb shaped ablation features

(Specimen length = 32cm)

Stony Iron Meteorite E14141

This is the Esquel Stony Iron Pallasite

Found in Esquel, Chubut Argentina in 1951. The green mineral is olivine, the metallic matrix is an FeNi alloy.

(Specimen length = 9cm)

Stony Chondrite E12421

This is the Barratta stony chondrite made of olivine and hypersthene.

Found in 1845 at Barratta, Deniliquin in Townsend, NSW. Wt. = 612gm

Click the left box to see chondrules Click the right box to see ablation features.

(Specimen length = 13cm)

Kyancutta Iron Meteorite E12420

This is a medium octahedrite type IIIA.

Found in 1932 at Kyancutta, Le Hunte Co, Eyre Peninsula, SA.

Wt. = 689.5gm

Click the red box to see thumb shaped ablation features

Click the yellow box to see a closeup of the FeNi alloy intergrowth called the Widmanstatten texture.

(Specimen length = 13cm)

Millbillillie Stony Achondrite E12147

This is a stony achondrite (eucrite). Fell Oct. 1960 at Millbillillie, WA. Wt. = 312gm

Click the red box to see linear ablation pits

(Specimen length = 8cm)

Murchison Carbonaceous chondrite II E12322

This carbonaceous chondrite fell in Sept. 1969 in a paddock near Murchison, Vic. Wt. = 39.3gm

(Specimen diameter = 3.5cm)

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Impact Features
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Shattercones E12792

The specimen on the left was found within the Spider Impact Structure, Kimberley WA. This is a "cone-in-cone" structure in a quartzose sandstone.

(Specimen length = 45cm)

Impact Breccia/ Suevite E12791

This specimen was found around the Goat Paddock Impact Structure, Mueller Range Kimberley WA.

Click the red box to see a close up of glass fragments generated in the impact (see glasses below).

(Specimen length = 29cm)

Frothed Silica Glass E11189

These specimens were formed by melting of rocks on impact of the Henbury Meteorite. From Henbury, NT.

(Specimen diameters = 6-7cm)

Glass Bomb E11490

This frothed glass is interpreted to have formed in an impact event. From Heerhof near Bopfingen, Nordlinger Ries, W. Germany

(Specimen diameter = 8cm)

Darwin Glass E12301

The elongated glass fragments on the left formed in a meteorite impact. They are from Mt Darwin, TAS.

(fragment lengths = 2-3cm)

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Tektites
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Australite - Perfect Flanged Button E7807

From Port Campbell VIC the Baker Collection. 17-12-75

(Specimen diameter = 2cm)

Australite - Large core type E2730
From Lower Norton, Horsham VIC.

(Specimen diameter = 5cm)

Australite - boat shaped E2748

From McKenzie Ck, Horsham VIC.

(Specimen length = 5cm)

Tektite E3490
From Khon Kaen Prov. NE Thailand

(Specimen diameter = 3cm)

Bikol Tektite E1931
From Camarine Norte, Luzon, Phillipines

(Specimen diameter = 7cm)

Created:	19 March 2001
Last modified:	1 May 2002
Authorised by:	Head, School of Earth Sciences
*Maintained by Stephen Gallagher*	sjgall@unimelb.edu.au
© The University of Melbourne 1994-2002	Disclaimer and Copyright Information.

.	METEORITES	.
	Henbury Iron Meteorite E4974 Found in in Henbury, NT.	Click the red box to see thumb shaped ablation features (Specimen length = 32cm)

		Stony Iron Meteorite E14141 This is the Esquel Stony Iron Pallasite Found in Esquel, Chubut Argentina in 1951. The green mineral is olivine, the metallic matrix is an FeNi alloy. (Specimen length = 9cm)

		Stony Chondrite E12421 This is the Barratta stony chondrite made of olivine and hypersthene. Found in 1845 at Barratta, Deniliquin in Townsend, NSW. Wt. = 612gm Click the left box to see chondrules Click the right box to see ablation features. (Specimen length = 13cm)

	Kyancutta Iron Meteorite E12420 This is a medium octahedrite type IIIA. Found in 1932 at Kyancutta, Le Hunte Co, Eyre Peninsula, SA. Wt. = 689.5gm	Click the red box to see thumb shaped ablation features Click the yellow box to see a closeup of the FeNi alloy intergrowth called the Widmanstatten texture. (Specimen length = 13cm)

		Millbillillie Stony Achondrite E12147 This is a stony achondrite (eucrite). Fell Oct. 1960 at Millbillillie, WA. Wt. = 312gm Click the red box to see linear ablation pits (Specimen length = 8cm)

		Murchison Carbonaceous chondrite II E12322 This carbonaceous chondrite fell in Sept. 1969 in a paddock near Murchison, Vic. Wt. = 39.3gm (Specimen diameter = 3.5cm)
.	Impact Features	.
	Shattercones E12792 The specimen on the left was found within the Spider Impact Structure, Kimberley WA. This is a "cone-in-cone" structure in a quartzose sandstone. (Specimen length = 45cm)	Impact Breccia/ Suevite E12791 This specimen was found around the Goat Paddock Impact Structure, Mueller Range Kimberley WA. Click the red box to see a close up of glass fragments generated in the impact (see glasses below). (Specimen length = 29cm)

	Frothed Silica Glass E11189 These specimens were formed by melting of rocks on impact of the Henbury Meteorite. From Henbury, NT. (Specimen diameters = 6-7cm)

Glass Bomb E11490 This frothed glass is interpreted to have formed in an impact event. From Heerhof near Bopfingen, Nordlinger Ries, W. Germany (Specimen diameter = 8cm)	Darwin Glass E12301 The elongated glass fragments on the left formed in a meteorite impact. They are from Mt Darwin, TAS. (fragment lengths = 2-3cm)
.	Tektites	.

Australite - Perfect Flanged Button E7807	From Port Campbell VIC the Baker Collection. 17-12-75	(Specimen diameter = 2cm)

Australite - Large core type E2730	From Lower Norton, Horsham VIC.	(Specimen diameter = 5cm)

Australite - boat shaped E2748	From McKenzie Ck, Horsham VIC.	(Specimen length = 5cm)

Tektite E3490	From Khon Kaen Prov. NE Thailand	(Specimen diameter = 3cm)

Bikol Tektite E1931	From Camarine Norte, Luzon, Phillipines	(Specimen diameter = 7cm)