| 1. | Geologists call the light minerals felsic and the dark ones mafic.
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| 2. | That magma crystallizes to mafic rocks such as gabbro and basalt.
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| 3. | Of the mafic minerals present, augite is the most common.
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| 4. | This is interlaced with lode and deposits of mafic silicate material.
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| 5. | These basaltic lavas are intruded by narrow mafic and ultramafic sills.
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| 6. | It grows along the banks in cracks in the mafic bedrock.
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| 7. | A lava flow containing mafic andesite is associated with the cone.
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| 8. | The Raialo Group consists predominantly of mafic volcanic and calcareous rocks.
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| 9. | These minerals are typical weathering products of mafic igneous rocks.
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| 10. | However, eclogite and granulite are roughly equivalent mafic rocks.
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