Quartz is not just SiO2

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Offline PR

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Quartz is not just SiO2
« on: 02/12/2005 16:17:27 »
Quartz is not just SiO2. It has small amounts of many other elements, but I canīt quantify those amounts because I havenīt found any data concerning this, with the exception of manufactured ultra-pure quartz ( newbielink:http://www.gequartz.com/en/chemical.htm [nonactive]).
Can anyone provide me chemical compositions of natural quartz?
 

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Offline daveshorts

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Re: Quartz is not just SiO2
« Reply #1 on: 02/12/2005 17:52:41 »
perfect quartz is SiO2 in a diamond-like structure, if you dig the stuff out of the ground or even make it, there  will probably be some other stuff kicking around as impurities. The impurities will alter depending on where exactly you got the quartz from.

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Offline Bass

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Re: Quartz is not just SiO2
« Reply #2 on: 02/12/2005 21:13:52 »
Natural quartz is 99.7%+ pure SiO2.  Minor impurities include Al, Ti,
Mg, Mn, Cr, Ca, Na, H20, K and Fe.  While minor, these impurities can change several properties of quartz crystals.  Info from an old Dana's Mineralogy.

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