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what is type of chemical bond in the opal

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asked Dec 22, 2015 by Nhật Linh (170 points)

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The silica in opals is SiO2. It is a co-valent bond. Water molecules attach to silica molecules. I don't know the nature of that bond.

answered Dec 24, 2015 by Weasel (58,360 points)
selected Jan 16, 2016 by Nhật Linh