What chemicals are in granite?

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Offline Jack Burhouse

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What chemicals are in granite?
« on: 28/02/2011 19:30:03 »
Jack Burhouse  asked the Naked Scientists:
   
What chemicals are in granite?

What do you think?
« Last Edit: 28/02/2011 19:30:03 by _system »

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Offline Bass

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What chemicals are in granite?
« Reply #1 on: 28/02/2011 23:51:12 »
When you say chemicals, I assume you mean elements? 

Sort of in order of diminishing abundance:

O, Si, Al, Na, K, Ca, Fe, Mg- then potentially a whole host of minor elements.

Hopefully this is what you were looking for?
Old enough to have a grandson
Slow enough to study rocks
Thirsty enough to find a pub

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Offline Zhoog

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What chemicals are in granite?
« Reply #2 on: 13/03/2011 02:02:34 »
Maybe you are looking for the most common minerals in granite. If so, they are plagioclase and alkali feldspars and quartz. Others may also be present though and are primarily amphiboles, biotite micas, pyroxene, apatite, tourmaline, sphene, beryl, augite, zircons, garnet, topaz, cordierite, fayalite, titanite, and possibly some rare earth oxides.