mafic

Describing dark colored rocks or minerals that are composed particularly of magnesium and iron.
Found on http://www.encyclo.co.uk/local/22291

Mafic

Mafic is an adjective describing a silicate mineral or rock that is rich in magnesium and iron; the term is a portmanteau of the words `magnesium` and `ferric`. Most mafic minerals are dark in color and the relative density is greater than 3. Common rock-forming mafic minerals include olivine, pyroxene, amphibole, and biotite. Common mafic roc...
Found on http://en.wikipedia.org/wiki/Mafic

Mafic

(Of rocks) Essentially composed of dark coloured minerals.
Found on https://www.encyclo.co.uk/local/20501

mafic

A dark-colored ferromagnetism mineral or igneous rock composed chiefly of one or more such minerals. Mafic minerals include amphibole, olivine, and pyroxene.
Found on http://www.daviddarling.info/encyclopedia/M/mafic.html

Mafic

a silicate mineral or rock that is rich in magnesium and iron.
Found on http://en.wikipedia.org/wiki/Glossary_of_geology

Mafic

A term used to describe an igneous rock that has a large percentage of dark-colored minerals such as
Found on http://www.encyclo.co.uk/local/22392

mafic

A term used to describe dense, dark-colored minerals rich in magnesium and iron, like pyroxene, amphibole, or olivine. Mafic rocks have specific gravities greater than 3. The word mafic derives from the constituents magnesium and ferrum (iron in Latin) with an adjectival ending. Complement of felsic.
Found on http://www.scientificpsychic.com/etc/geology-glossary.html

Mafic

An igneous composed chiefly of one or more dark-colored minerals.
Found on http://volcano.oregonstate.edu/glossary/1

Mafic

An igneous composed chiefly of one or more dark-colored minerals.
Found on http://www.encyclo.co.uk/local/21455

Mafic

Descriptive of igneous rocks composed dominantly of magnesium and iron rockforming silicates.
Found on http://www.australian-shares.com/glossary-of-terms.php.html

Mafic

Igneous rocks composed mostly of dark, iron- and magnesium-rich minerals.
Found on http://www.adrianaresources.com/s/Glossary.asp

Mafic

Igneous rocks composed mostly of dark, iron- and magnesium-rich minerals.
Found on http://www.adrianaresources.com/s/Glossary.asp

Mafic

Igneous rocks composed mostly of dark, iron- and magnesium-rich minerals.
Found on http://www.libertystaruranium.com/miningexplained/mining-geology-glossary/

mafic

Referring to a generally dark-colored igneous rock with significant amounts of one or more ferromagnesian minerals, or to a magma with significant amounts of iron and magnesium.
Found on https://www.encyclo.co.uk/local/22327

MAFIC

Said of an igneous rock composed chiefly of one or more ferromagnesian, dark-colored minerals in its mode; also, said of those minerals. The term was proposed by Cross, et al. to replace the term femag, which they did not consider to be euphonious. Etymol: a mnemonic term derived from magnesium + ferric + ic. It is the complement of felsic.
Found on http://www.encyclo.co.uk/local/22047

mafic

Term used to describe the amount of dark-colored iron and magnesium minerals in an igneous rock. Complement of felsic.
Found on http://www.ucmp.berkeley.edu/glossary/gloss2geol.html

mafic

Term used to describe the amount of dark-colored iron and magnesium minerals in an igneous rock. Complement of felsic.
Found on http://www.ucmp.berkeley.edu/glossary/glossary_2.html
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