mafic rock: Quick Facts

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Also Known As	basic rock

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basalt diabase gabbro anorthosite eclogite spilite ijolite nephelinite theralite teschenite micropegmatite felsic and mafic rocks pegmatite spherulite colour index alkaline rock dike sill laccolith crystallite

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felsic and mafic rocks: Introduction

Basalt sample returned by Apollo 15, from near a long sinous lunar valley called Hadley Rille. Measured at 3.3 years old.

(Bed) Rocks and (Flint) Stones