1. Geologists call the light minerals felsic and the dark ones mafic. 2. Both deformed and undeformed small felsic dikes occur in the schist. 3. Beryllium becomes concentrated in felsic pegmatites in which chromium is almost absent. 4. Sahand is made chiefly of dacite and associated felsic rocks. 5. Granodiorite is felsic to intrusive igneous equivalent of the extrusive igneous dacite. 6. Resedimented felsic , epiclastic and turbiditic sediments compose the Turtle Lake Formation. 7. The rocks of the Climax Stock are alkaline felsic intrusives. 8. Eruptions of rhyolite are relatively rare compared to eruptions of less felsic lavas. 9. Extensive felsic lava flows are uncommon, but have travelled as far as. 10. They are often felsic ( high in silica ).
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