coesite

American  

[koh-sahyt] / ˈkoʊ saɪt /

noun

Mineralogy.

1. 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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Etymology

Origin of coesite

1950–55; named after Loring Coes, Jr., 20th-century American who synthesized it; -ite ¹

Example Sentences

"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."

From Science Daily

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 Science Daily

The other silica polymorph was quartz, which lay like a ring around the coesite.

From Science Daily