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The color will depend on the mineral composition of the magma.
Wiki User
∙ 16y ago
Wiki User
∙ 14y agoBecause they have different chemical compositions.
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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).
Is basalt a metamorphic rock?
Basalt is not a metamorphic rock but an igneous rock, usually dark-colored. It is the most common type of volcanic rock on Earth.
What is a dark colored rock with a relatively low silica content?
If it is also an igneous rock, it would be described as a mafic rock, like basalt. There are many other rocks, not necessarily igneous, that would also fit this description.
What is the dark colored igneous rock with rich in iron and magnesium?
These rocks are called mafic igneous rocks, such as basalt. == ==
What is the difference between trap rock and granite rock?
Traprock is any of the various, dark-colored, fine-grained igneous rocks, such as basalt, that is primarily used as crushed rock for road construction. Granite rock on the other hand, is any of the various light-colored, coarse-grained igneous rocks that is used in building construction and architectural design.
How does the density of a light colored igneous rock differ from that of a dark colored igneous rock?
Normally, light colored igneous rocks are less dense compared to dark colored igneous rocks. This is because the light colored rocks have a less iron in them.
How does the density of a light colored rock differ from the density of dark colored rock?
Normally, light colored igneous rocks are less dense compared to dark colored igneous rocks. This is because the light colored rocks have a less iron in them.
In general how does the density of a light colored igneous rock differ from that of a dark colored igneous rock?
Light-coloured igneous rocks, such as granite, have a higher silica content and lower iron and magnesium than darker ones, such as basalt. Since iron and magnesium are very dense minerals, this makes darker igneous rocks more dense than lighter ones.
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
What is an example of an igneous rock besides granite and pumice and obsidian?
The word "igneous" comes from the Greek word for fire. Two other igneous rocks are Basalt dark grey to black, and Gabbro dark grey to black.
Is basalt a dark and green igneous rock?
yes
What igneous rock is dense and has dark color?
aids
What is an intrusive igneous rock that is dark colored?
gabbro
Balstic rock will form what color on igneuus rock?
Dark colored igneous rock
Is basalt a metamorphic rock?
Basalt is not a metamorphic rock but an igneous rock, usually dark-colored. It is the most common type of volcanic rock on Earth.
What is a dark colored rock with a relatively low silica content?
If it is also an igneous rock, it would be described as a mafic rock, like basalt. There are many other rocks, not necessarily igneous, that would also fit this description.
