Answered
In Volcanoes
What is Mafic like?
Mafic is a silicate mineral or rock that is rich in magnesium and iron, and is usually dark in color. It is formed from cooling volcanic lava.
Results for: Mafic
Answered
In Geology
What is mafic and felsic lava?
Felsic lava has a higher silica content than mafic lava. Felsic lava is slower moving (high viscosity) than the less viscous mafic lava. Mafic lava is higher in dark m…inerals and higher in the elements iron and magnesium. (MORE)
Answered
In Geology
What is a mafic rock?
A Mafic rock is a type of igneous rock that is rich in Iron and Magnesium instead of silica. The rocks are also darker in color like Basalt.
Answered
In Geology
What are mafic rocks?
A mafic rock is composed of mafic minerals such as biotite mica, amphibole, proxene, and olivine. The actual word mafic refers to magnesium and iron; nevertheless, these miner…als are called ferromagnesian. Mafic rocks include gabbro, scoria, and basalt. They each have about 46-85% mafic mineral crystals. Periodite, 86-100% mafic minerals, is considered ultramafic because of its olivine composition. (MORE)
Answered
In Geology
What rocks are mafic?
Mafic is a chemical classification for igneous rocks containing 46-85% mafic (minerals rich in iron and magnesium) minerals. Some examples include gabbro, basalt, and scoria.
Answered
In Geology
Is quartz mafic?
No, we call something mafic if it has a relative low silica content. As quartz is 100% silica, it's not mafic, but felsic.
Answered
What is the mafic mineral and felsic mineral?
First of all there is no such thing as a mafic or a felsic "mineral". There can be mafic and felsic rocks. Mafic rocks have a high magnesium and iron content. Felsic rocks enr…iched with lighter elements such as oxygen and silicon. (MORE)
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Is a limestone mafic or felsic?
Neither. The terms mafic and felsic apply to igneous rocks. Limestone is a sedimentary/biochemical rock and so cannot be said to be mafic, felsic, or intermediate.
Answered
In Volcanoes
How are mafic and felsic rocks different?
Felsic rocks are high in silicon (Si) and low in magnesium (Mg) and in iron (Fe). Gradation in feldspar causes felsic rocks to be richer in potassium (K). Mafic rocks are hig…h in magnesium (Mg) and iron (Fe) and low in silicon (Si). Gradation in feldspar causes magic rocks to be richer in calcium (Ca) (MORE)
Answered
Is a limestone mafic?
No. The terms mafic and felsic apply to igneous rocks. Limestone is a sedimentary/biochemical rock and so cannot be said to be mafic, felsic, or intermediate.