adj.
Containing magnesium and iron and only a very small amount of silica. Used of igneous rock.
ultrabasic
Dictionary:
ul·tra·ba·sic (ŭl'trə-bā'sĭk)  |
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 | ultramafic |
| cumberlandite (petrology) |
| dunite (petrology) |
 | Where can you find ultrabasic rocks? Read answer... |
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more |
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Mentioned in
- ultramafic
- cumberlandite (petrology)
- dunite (petrology)
- peridotite (petrology)
- bytownite (mineralogy)
- pyrope (mineralogy)
- serpentine
- talc
- Dolomite (mineralogy and petrology)
- Anthophyllite (mineralogy and petrology)
- Apatite (mineralogy and petrology)
- Carbonate minerals (mineralogy and petrology)
- Phlogopite (mineralogy and petrology)
- hypersthene
