On the boulder was found in at least 30 thousand diamonds that light up when exposed to X-ray tomography scanner. Researchers say the concentration of diamond in the rock millions of times larger than a typical diamond seed, which is an average of one to six carats per tonne, or roughly one-fifth of a gram.
Interestingly, when exposed to X-rays, each mineral stone that emits bebeda color. For example, emit black diamond.
"Mineral Association will tell us the origin of this stone, which is indeed a strange one," said Larry Taylor, a
Researchers are still not able to reveal how diamonds are formed deep within the earth. Scientists think the diamond appear deep in the earth's surface, between the layers of the earth's crust and the core (mantle).
Volcanic eruptions eventually bring diamonds up to the surface layer of the earth. Unfortunately, on the way to the surface, some diamonds were destroyed, leaving only crystals on the surface of the earth.
From boulder that, tens of thousands of diamond unite in a tight binding. Meanwhile, the crystal has a height of only 1 mm, was found in the octahedral layers.
Other spots in the chunk is garnet red and green olivine and pyroxene. 3D models built from X-rays, revealed when the diamond is formed after the mineral garnet, olivine and pyroxene.
Taylor said that overall, the findings suggest that diamonds crystallized from a liquid separated from subducted oceanic crust, which kemunginan composed of solid rock or peridot. This finding still harbored a mystery, including the chemical process of the formation of the diamond.
"Chemical reactions in the formation of diamonds is still a puzzle," said Taylor.
Meanwhile, another researcher who was not involved in the study, Sami Mikhail, has other explanations of chemical processes are rare.
"The source of the unusual chemistry that could be really old formation that has gone down in the mantle in a long time," said Carnegie Institution researcher dor Science, Washington DC, USA.
The findings of these rare stones have been presented at the annual meeting of the American Geophysical Union earlier this week. Furthermore, the results of this study will be published in Russian Geology and Geophysics for the January 2015 edition.
Thank you for reading this article. Written and posted by Bambang Sunarno. sunarnobambang86@gmail.com
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name: Bambang Sunarno.
http://www.primadonablog.blogspot.com/2015/12/contains-30-thousand-diamonds.html
Published Date: December 26, 2015 at 16:55
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