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From Precious OPAL to Nanofilms

... Today two Japanese companies — Kyocera and Inamori — produce commercial synthetic opals using the technology they developed. The name of these stones is Gilson opals , because they are actually simulations of natural stones: the space between the silica particles in these stones is filled with plastic. There are no deposits of precious opal in Russia. This was one of the reasons why, about 30 years ago, researchers from the Novosibirsk Institute of Geology and Mineralogy, the technology they developed....

Modified: 25.08.2007
opal , MSS , nanofilms , nanocrystallization , nanostructures , heterostructures , silica particle , silica
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The Planet Chronicles by Diatoms

Rapid development of diatoms resulted in bottom deposits enriched in silica at the expense of frustules of dead diatoms, which can stay fossilized for millions of years. In this way “diatomaceous” rocks form, some of which consist almost completely of diatom frustules, especially where calcium promoting dissolution ...

Modified: 30.08.2006
diatoms , silica , nature , Arctic , climate , tsunami
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Diatoms and People

A frequently asked question is “what use are the diatoms?” Of course now we can point to new interests but for many years they have been utilised in a wide variety of industries in the form of their fossil remains Vast deposits of diatoms (diatomite) have been found in the Urals, Russia, Eastern Europe, in Barbados, West Indies, in Oamaru, New Zealand, and in Lompoc California, USA. Some of these are being extensively mined for commercial use. Diatoms may also accumulate in the sediments in a...

Modified: 30.08.2006
diatoms , frustule , medical applications , silica
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Biosilica - Raw Material of the New Millennium

... “bodiaga” in Russian, have been traditionally used in medicine to heal bruises and in cosmetology to prepare peeling masks resulting in a “natural” blush. Very recent is the discovery of sponges as an inexhaustible source of the precious raw material biosilica, which has an enormous commercial potential, as it can be used to produce silicone materials. Lake Baikal abounds in this amazing living material of the future. The cooperative research conducted in Irkutsk by the Limnology Institute, SB RAS, headed ...

Modified: 30.01.2006
sponges , spicules , silicatein , silica , Baikal , silicon , silicic acid
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