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How do two igneous rocks have the same mineral composition but different textures?
Wiki User
∙ 11y ago
The texture of an igneous rock refers to the size of its mineral crystals. If the common magma of both igneous rocks has experienced differences in cooling rates due to depth, they will have different textures. Slow cooling produces large crystals, and quick cooling produces small crystals. Granite and rhyolite are two igneous rocks sharing the same mineral composition, but having undergone different rates of magma cooling due to depth at solidification.
Wiki User
∙ 11y ago
Wiki User
∙ 14y agoIt is possible for them to have a similar texture but if the composition similar they are the same type of igneous rock by definition.
Wiki User
∙ 12y agoRock from the same origin. Or rocks having the same parent material\mineral. For example, granite and rhyolite.
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Igneous rocks may be similar in mineral composition and yet have different?
Texture or crystal size.
What igneous rocks have a mineral composition between that of granitic and basaltic rocks?
Andesitic igneous rock.
Why are some igneous rock dark and other light?
The color will depend on the mineral composition of the magma.
Igneous rocks are classified based upon their mineral composition and?
And their texture, which can be aphanitic, phaneritic, glassy, or porphyritic. mineral composition and crystal texture
How are basalt and granite different in their Orgin texture and mineral composition and how are they similar?
Both rocks are igneous rock but basalt is an aphanitic igneous rock while granite is a common type of felsic intrusive igneous rock.
Why do igneous rocks that have the same composition sometimes have different sizes of mineral grains?
This is as a result of difference in the rate of cooling of the Igneous rocks.
Igneous rocks may be similar in mineral composition and yet have different?
Texture or crystal size.
How are igneous rocks classified acording to their..?
Igneous rocks are classified by either being intrusive or extrusive, then mafic or felsic then they are classified by either fine grain or course grained textures.
What igneous rocks have a mineral composition between that of granitic and basaltic rocks?
Andesitic igneous rock.
Why are some igneous rock dark and other light?
The color will depend on the mineral composition of the magma.
Igneous rocks are classified based upon their mineral composition and?
And their texture, which can be aphanitic, phaneritic, glassy, or porphyritic. mineral composition and crystal texture
How are basalt and granite different in their Orgin texture and mineral composition and how are they similar?
Both rocks are igneous rock but basalt is an aphanitic igneous rock while granite is a common type of felsic intrusive igneous rock.
What is the mineral composition of an intermediate igneous rock?
felsic and something else i do not remember the second one.
What causes the different colours in rocks?
The different colours are from different minerals. A reddish colour could be due to a mineral containing a lot of iron, for example. Weathering, staining, mineralogy and method of formation all play a part.
What 3 things do you look at to key out igneous rocks?
color texture and mineral composition
What is a rock with two different textures called?
Porphryitic igneous rock is composed of phenocrysts embedded in a finer matrix.
How do you classify igneous rocks?
Look at them. There shape, size, color and feel! Dont worry you will figure it out....
