A macroscopic intergrowth of quartz and alkali feldspar resulting in graphic texture. The large white mineral is feldspar and the little cuneiform gray ones are quartz.
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{{Information |Description=A macroscopic intergrowth of quartz and alkali feldspar resulting in graphic texture. |Source=self-made |Date=Maio 2008 |Author= Eurico Zimbres |Permission=Free for all use |other_versions= }} {{zimbres}} [[Category:Igneous ro