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Ultramafic - What does it mean?
ultramafic
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ultramafic
English
Adjective
(
wikipedia ultramafic
) (
en adjective
)
(geology) Describing igneous rocks that contain magnesium and iron and only a very small amount of silica, such as are found in the Earth’s mantle.
Synonyms
* ultrabasic
Noun
(
en noun
)
A rock with such properties.
Not English
has no English definition. It may be misspelled.