2007-10-02 01:36:26 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
Silicates are a large group of minerals that contain the element SILICON. Common examples are quartz, feldspars, feldspathoids, pyroxenes...
Within these silicates, each silicon atom is usually bonded to four oxygen atoms. This is the 'silica tetrahedron' - the silicon atom forms the centre of the tetrahedron, and the four oxygen atoms form the corners of the tetrahedron.
The slica terrahedra may be directly bonded to each other by the sharing of oxygen atoms, or held together by other atoms, most commonly Iron, magnesium, calcium, sodium, and potassium. Some of the silicon atoms are often replaced by aluminium to maintain neutral overall charge.
2007-10-02 05:07:46 · answer #1 · answered by Andrew 5 · 1⤊ 0⤋
Silica Tetrahedron
2016-10-03 09:16:41 · answer #2 · answered by ? 4 · 0⤊ 0⤋
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What are silicates and what is the silicate tetrahedron?
2015-08-19 05:46:11 · answer #3 · answered by ? 1 · 0⤊ 0⤋
What Is Silicate
2016-12-15 17:56:29 · answer #4 · answered by ? 4 · 0⤊ 0⤋