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No. Felsic rocks are light-colored and high in silica. Mafic rocks are generally dark-colored and low in silica.
Wiki User
∙ 9y ago
Wiki User
∙ 14y agoNo. Mafic rocks are generally dark in color such as basalt and gabbro.
Wiki User
∙ 12y agoThey are dark due to their composition. They contain iron and magnesium which make them mafic. On the other hand, felsic rocks(opposite of mafic) contain silicon and aluminum.
Wiki User
∙ 11y agoMafic minerals are high in iron and magnesium content, making them darker than felsic minerals which are more silicon and aluminum rich.
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How can mineral composition affect the color of an igneous rock?
Silicate minerals can be light or dark, but Mafic minerals are dark, which is why Basalt appears dark, while Granite is light because Quartz is also light (in colour, not density).
What type of magma is dark in color?
Mafic
This type of magma is dark in color?
mafic
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 minerals 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.
What is a mafic rock and what color is it?
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.
How can mineral composition affect the color of an igneous rock?
Silicate minerals can be light or dark, but Mafic minerals are dark, which is why Basalt appears dark, while Granite is light because Quartz is also light (in colour, not density).
Which igneous rock has a dark color?
Mafic
This type of magma is dark in color?
mafic
What type of magma is dark in color?
Mafic
What color is peridotite?
The igneous rock peridotite has a very high color index. It is comprised of more than 95% mafic minerals (like olivine), giving it a dark green color.
Where do we find mafic rocks?
Pertaining to rocks rich in dark, ferromagnesian minerals.
Does metamorphic rock has bands of light and dark color?
yes.those are very common in metarmorphic rocks especially Gneisses.Usually banding is between felsic and mafic minerals.
What mafic is 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.
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 minerals 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.
What type of composition does an igneuous rock have that contains mostly plagiclase feldspar and about 30 percent dark silicate minerals?
it is ultra mafic
What is a mafic rock and what color is it?
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.
Why some types of magma form igneous rocks that are dark colored and dense.?
Mafic and ultramafic magmas are high in dark, heavy minerals like pyroxene, amphibole, and olivine, which contribute to an igneous rock being dark in color with a higher specific gravity than felsic and intermediate magmas and rocks.
