structually quartz is a
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Answer:
Each silicon atom is surrounded by and connected to 4 oxygen atoms, and each oxygen atom is connected to 2 silicon atoms. ... Individual silicon and oxygen atoms cannot move freely within the crystal. Thus quartz is said to have a macromolecular
Answer:
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Explanation:
Quartz is a hard, crystalline mineral composed of silicon and oxygen atoms. The atoms are linked in a continuous framework of SiO₄ silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO₂. Wikipedia
Crystal system: α-quartz: trigonal; β-quartz: hexagonal
Category: oxide mineral
Crystal class: α-quartz: trapezohedral (class 3 2); β-quartz: trapezohedral (class 6 2 2)
Optical properties: Uniaxial (+)
Color: Colorless through various colors to black
Melting point: 1670 °C (β tridymite) 1713 °C (β cristobalite)
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