Ultramafic Rock Stocks List
Symbol | Grade | Name | % Change | |
---|---|---|---|---|
NNX | D | Nickel North Exploration Corp. | 0.00 | |
DAN | F | Arianne Phosphate Inc. | 0.00 |
Related Industries: Industrial Metals & Minerals
Related Industries:
Industrial Metals & Minerals
- Ultramafic Rock
Ultramafic rocks (also referred to as ultrabasic rocks, although the terms are not wholly equivalent) are igneous and meta-igneous rocks with a very low silica content (less than 45%), generally >18% MgO, high FeO, low potassium, and are composed of usually greater than 90% mafic minerals (dark colored, high magnesium and iron content). The Earth's mantle is composed of ultramafic rocks. Ultrabasic is a more inclusive term that includes igneous rocks with low silica content that may not be extremely enriched in Fe and Mg, such as carbonatites and ultrapotassic igneous rocks.
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