Jack Hills Zircon Rock Australia 
Brand : Sciencemall-USA
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- 9.00 LBS
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This extra large Jack Hills rock specimen is from the Erawondoo Hill location in Western Australia. Zircon crystals dated to 4.4 Ga are found in this location and are currently Earth's oldest known terrestrial zircons.
The Jack Hills are located in the Narryer Gneiss Terrane of the Yilgarn Craton, Western Australia, and comprise an 80 km long northeast-trending belt of folded and metamorphosed supracrustal rocks. The dating of zircons from this location continues to be extensively used for providing reliable U-Pb crystallization ages. Zircon minerals of 4,404 +/- 8 Ma are a reliable date for this material.
Zircons also show another interesting feature. Their oxygen isotopic composition has been interpreted to indicate that more than 4.4 billion years ago, there may have been water on the surface of the Earth.
Rough Rock Specimen size: 233mm L X 238mm W X 49mm D; Weight: 4.04956 kg or 8.9278 lb. This material was legally collected.
Ships Certificate of Authenticity and information about the specimen. Tag and tag stand are included. A black wooden display stand is included, and a sizing photo cube is not included.
This Jack Hills zircon rock from the Erawondoo Hill, Narryer Gneiss Terrane, Yilgarn craton is a spectacular specimen. Because of its size, shape, and color would be a profound addition to any geological collection.