Lunar Meteorite

Calcalong Creek

Western Australia



Calcalong Creek -  a cross section through the whole stone.

(photo credit: David Kring)


calcalong_c Jim Strope.JPG

Close-up of a sawn slice, probably about 1 cm in longest dimension. Note the vesicular fusion crust along the upper left edge. The meteorite is a regolith breccia. Note that the clasts (1) come in all sizes and a variety of gray shades, (2) they are not rounded like beach pebbles, and (3) there is no layering.

(photo credit: Jim Strope)



Photomicrograph of a thin section (field of view: 1.1 cm across). Most of the clasts are grains of plagioclase and pyroxene.

(photo credit: Dolores Hill; figure 1a from Hill & Boynton, 2003)





Views of two sides of a small sample of Calcalong Creek. The vesicular fusion crust is visible in the photo on the left. The tick marks are spaced at 1-mm intervals. Click on image for enlargement.

(photo credit: Randy Korotev)



from The Meteoritical Bulletin, no. 71, Meteoritics 26, 255-262 (1991)

Calcalong Creek

Wiluna District, Western Australia, Australia
Found: after 1960
Mass: 19 g

Lunar meteorite


A stone of 19 g was found by an Aborigine meteorite hunter in the Millbillillie strewnfield. It has a complete fusion crust, the interior shows a microbreccia with white angular clasts in a dark matrix (impact melt breccia, calculated from the bulk analysis: 50% anorthosite, 20% KREEP, 15% Luna- 16 type low-Ti mare basalt and 15% Sc-Cr-V components). Information and analysis, Fe/Mn = 73-78, KREEP pattern of REE, Dolores H. Hill, Lunar Planetary Laboratory, University of Arizona, Tucson AZ 85726, USA. See also, D. H. Hill, W. V. Boynton and R. A. Haag, Nature, 1991, in press. The main mass is with Robert Haag, P. O. Box 27527, Tucson, AZ 85726, USA.


Randy Says…

It's compositionally distinct from Lynch 002, the only other lunar meteorite from Australia, but similarly rich in incompatible elements like Th.  The two Australian lunar meteorites were found 859 km apart.



More Information

Meteoritical Bulletin Database


Calcalong Creek




Calzada-Diaz A., Joy K. H., Crawford I. A., and Nordheim T. A. (2015) Constraining the source regions of lunar meteorites using orbital geochemical data. Meteoritics & Planetary Science 50, 214-228.

Cohen B. A., Swindle T. D., Kring D. A., and Olson E. K. (2005) Geochemistry and 40Ar-39Ar geochronology of impact-melt clasts in lunar meteorites Dar al Gani 262 and Calcalong Creek. Lunar and Planetary Science XXXVI, abstract no. 1481, 36th Lunar and Planetary Science Conference.

Fritz J. (2012) Impact ejection of lunar meteorites and the age of Giordano Bruno. Icarus 221, 1183-1186.

Hill D. H. and Boynton W. V. (2003) Chemistry of the Calcalong Creek lunar meteorite and its relationship to lunar terranes. Meteoritics & Planetary Science 38, 595-626.

Hill D. H., Boynton W. V., and Haag R. A. (1991) A lunar meteorite found outside the Antarctic. Nature 352, 614-617.

Hill D. H., Marvin U. B., and Boynton W. V. (1995) Clasts from the Calcalong Creek lunar meteorite. Lunar and Planetary Science XXVI, 605-606.

Korotev R. L. (2005) Lunar geochemistry as told by lunar meteorites. Chemie der Erde 65, 297-346.

Korotev R. L., Irving A. J., and Bunch T. E. (2008) Keeping up with the lunar meteorites - 2008. Lunar and Planetary Science XXXIX, abstract no. 1209, 39th Lunar and Planetary Science Conference.

Korotev R. L., Zeigler R. A., Irving A. J., and Bunch T. E. (2009) Keeping up with the Lunar Meteorites - 2009. 40th Lunar and Planetary Science Conference, abstract no. 1137.

Kuehner S. M., Irving A. J., Korotev R. L., Hupé G. M., and Ralew S. (2007) Zircon-baddeleyite-bearing silica+K-feldspar granophyric clasts in KREEP-rich lunar breccias Northwest Africa 4472 and 4485. Lunar and Planetary Science XXXVIII, abstract no. 1516.

Marvin U. B. and Holmberg B. B. (1992) Highland and mare components in the Calcalong Creek lunar meteorite. Lunar and Planetary Science XXIII, 849-850.

Nishiizumi K. (2003) Exposure histories of lunar meteorites. Evolution of Solar System Materials: A New Perspective from Antarctic Meteorites, 104.

Nishiizumi K., Arnold J. R., Caffee M. W., Finkel R. C., Southon J., and Reedy R. C. (1992) Cosmic ray exposure histories of lunar meteorites Asuka 881757, Yamato 793169, and Calcalong Creek. Antarctic Meteorites XVII, 129-132.

Swindle T. D., Burkland M. K., and Grier J. A. (1995) Noble gases in the lunar meteorites Calcalong Creek and Queen Alexandra Range 93069. Meteoritics 30, 584-585.



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Prepared by
: Randy L. Korotev
Department of Earth and Planetary Sciences
Washington University in St. Louis

Please don’t contact me about the meteorite you think you’ve found until you read this and this.


Last revised:
30 May 2019