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Latest Zircon Stories

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2008-11-27 09:44:55

Analysis of minerals in ancient magmas paints new picture of early Earth A new picture of the early Earth is emerging, including the surprising finding that plate tectonics may have started more than 4 billion years ago "” much earlier than scientists had believed, according to new research by UCLA geochemists reported Nov. 27 in the journal Nature. "We are proposing that there was plate-tectonic activity in the first 500 million years of Earth's history," said geochemistry professor...

2008-10-22 06:00:17

Elray Resources, Inc. (OTCBB: ELRA), a technically-driven gold and mineral exploration company that recently announced it has entered in to a joint venture to develop a zircon sands project in Indonesia, is pleased to provide shareholders with the following background on the country's mining industry. Indonesia has some of the world's largest deposits of zircon sand, coal, copper, tin, nickel and gold, and is keen to earn more from the sector particularly as strong demand from China and...

2008-10-16 03:00:15

Elray Resources, Inc. (OTCBB: ELRA), a technically-driven gold and precious metal mineral exploration company that recently entered into a joint venture to develop a zircon sands deposit in Indonesia, is pleased to provide shareholders with the following background information on the global zircon market, which looks set for ongoing growth. Zircon is a highly valuable mineral used in a variety of industrial processes. It has experienced strong growth in both demand and price in recent...

2008-10-15 06:00:18

Elray Resources, Inc. (OTCBB: ELRA), a technically-driven gold and precious metal mineral exploration company, announced today that it has acquired a 50% interest in a highly promising zircon sands mining project in Central Kalimantan, Indonesia. The joint venture partner, PT. Indo Imperial Resources Tambang, has been successfully operating the project on a small scale for the last two years, and is teaming up with Elray Resources to provide the resources and technical expertise required to...

2008-09-19 03:00:23

By Zhu, Wenbin Zhang, Zhiyong; Shu, Liangshu; Lu, Huafu; Su, Jinbao; Yang, Wei Mafic dykes are observed in the Korla region along the northern Tarim Block, NW China. Our sensitive high-resolution ion microprobe U-Pb zircon ages, the first determined for these dykes, indicate that the mafic dykes were mainly formed at 650-630 Ma, and thus document the youngest known igneous activity associated with rifting in the Tarim Block during the Neoproterozoic. Combined with previous geochronological...

2008-08-01 03:00:26

By Friend, C R L Strachan, R A; Kinny, P D Abstract: Basement gneiss inliers within the Scottish Caledonides have been conventionally correlated with the Archaean Lewisian Gneiss Complex of the Caledonian foreland. Alternatively, the inliers could represent allochthonous terranes accreted to Laurentia before or during the Caledonian orogeny. Secondary ionization mass spectrometry U-Pb zircon dating indicates that the Ribigill, Borgie, Farr and Western Glenelg basement inliers are...

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2008-07-02 18:55:00

A recent study has shown that tiny slivers of diamond forged on an infant Earth may contain the earliest traces of life. The crystals contain a form of carbon often associated with plants and bacteria. The researchers caution that their results are not definitive proof of early life but do "not exclude" the possibility. "We're all a little sceptical," said Dr Martin Whitehouse of the Swedish Museum of Natural History and one of the authors of the paper. If the study is proven to be true then...

2008-06-17 15:00:43

U.S. scientists studying minerals called zircons say a harsh climate might have scoured or even destroyed the surface of the Earth's earliest continents. University of Wisconsin-Madison geologist Professor John Valley said Zircons, the oldest known materials on Earth, offer a window in time back as far as 4.4 billion years ago. Because the crystals are exceptionally resistant to chemical changes, Valley said they are now used to determine the age of ancient rocks. Valley previously used...

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2008-06-14 08:45:48

MADISON - A new analysis of ancient minerals called zircons suggests that a harsh climate may have scoured and possibly even destroyed the surface of the Earth's earliest continents. Zircons, the oldest known materials on Earth, offer a window in time back as far as 4.4 billion years ago, when the planet was a mere 150 million years old. Because these crystals are exceptionally resistant to chemical changes, they have become the gold standard for determining the age of ancient rocks, says...

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2008-03-03 15:45:00

New discovery of 'old growth' crystals provides new record of planetary evolutionThree-billion-year-old zircon microcrystals found in northern Ontario are proving to be a new record of the processes that form continents and their natural resources, including gold and diamonds.The discovery was made recently by an international research team led by Earth Sciences professor Desmond Moser at The University of Western Ontario. Measuring no more than the width of a human hair, the 200-million-year...


Latest Zircon Reference Libraries

28_9c4b0ac224e144eebf62b8d304f52c4b
2005-05-25 10:17:59

Zircon is a mineral belonging to the group of nesosilicates. Its chemical formula is ZrSiO4. Hafnium is almost always present ranging from 1 to 4%. The crystal structure of zircon is tetragonal crystal class. The natural color of zircon varies between colorless, yellow-golden, red, brown or green. Specimens that show gem quality are a popular substitute for diamond (but note that cubic zirconia is a completely different synthetic mineral with a different chemical composition). Zircon is a...

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