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coesite
[ koh-sahyt ]
noun
Mineralogy.
- a rare form of silicon dioxide, a denser polymorph of quartz, originally synthesized from quartz at high temperatures and pressures: later discovered in nature.
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˜yÐÄvlog History and Origins
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Example Sentences
Examples have not been reviewed.
The other silica polymorph was quartz, which lay like a ring around the coesite.
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The most important discovery was that spoke-shaped cracks radiated from the SiO2 inclusions in all directions: the result of the phase transition from coesite to quartz.
From
"What is special about them is the large amount of coesite. The coesite crystals in the whiteschist are several hundred micrometers in size, which makes them ideal for our experiments."
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