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| Description: Naming igneous rocks Basaltic rocks Contain substantial dark silicate minerals and calcium-rich plagioclase feldspar Also referred to as mafic: magnesium and ferrum (iron) Common rock is basalt Picture Stats: Views: 229 Filesize: 317.98kB Height: 836 Width: 1350 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=39382 |