silicate mineral

Earth

Silicate minerals comprise approximately 90% of the Earth’s crust.

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Johannes Kepler (wikiquote.org) Johannes Kepler (December 27 1571 – November 15 1630) was a German Lutheran mathematician, astronomer and astrologer, and a key figure in the 17th century astronomical revolution. He is best known for his laws of planetary motion, which provided one of the foundations of Isaac Newton’s law of universal gravitation.

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Tectosilicates, or “framework silicates,” have a three-dimensional framework of silicate tetrahedra with SiO2 in a 1:2 ratio. This group comprises nearly 75% of the crust of the Earth.

structure

In most silicate minerals, silicon is tetrahedral, being surrounded by four oxides.

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tectosilicate

Tectosilicates, or “framework silicates,” have a three-dimensional framework of silicate tetrahedra with SiO2 in a 1:2 ratio. This group comprises nearly 75% of the crust of the Earth.

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https://www.wikidata.org/wiki/Q178977

Wikipedia

Silicate mineral (Wikipedia) Silicate minerals are rock-forming minerals made up of silicate groups. They are the largest and most important class of minerals and make up approximately 90 percent of Earth’s crust.