2007-05-13 16:38:18 · 3 answers · asked by Ray G 1 in Science & Mathematics ➔ Earth Sciences & Geology
Granite, granodiorite, syenite.
Update - Yes, Thorian is technically correct - syenite by most definitions does not contain any free quartz. Therefore granite and granodiorite are your most correct answers, but some so-called syenites do contain a little quartz (as well as K-spar) and therefore could be argued to fit your answer.
2007-05-13 17:44:27 · answer #1 · answered by minefinder 7 · 0⤊ 0⤋
Syenite is undersaturated in silica which means no quartz or a very little amount. Depends on how picky you want to be but by definition syenite means no quartz visible. So that is incorrect. Granite is correct. And since everything that had these two mins is usually lumped as granite I would say granodiorite is the next best best. Better then syenite anyhow.
2007-05-13 19:56:37 · answer #2 · answered by thorian 2 · 0⤊ 0⤋
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2016-12-29 03:22:21 · answer #3 · answered by ? 3 · 0⤊ 0⤋