granite's crystal size varies from 1 mm to 10 mm
Granite is considered a coarse grained rock.
They are usually Medium size compared to those in Granite and compared to Basalt.
the size of crystals in extrusive roks
texture
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granite's crystal size varies from 1 mm to 10 mm
Please someone answer the question, what is the size of gabbro?
In comparison to the slower cooled magma that created the gabbro, the dolerite has formed closer to the surface. This means that there was less time for crystal growth before it cooled into rock, resulting in the difference in crystal size between the two.
Granite is lighter in color than basalt.
Granite does not have a specified size. It may be small as a pebble or as big as a mountain. However, granite is said to be phaneritic in texture which means that the crystal sizes are large enough to see with the naked eye and are not larger than thumb-sized crystals.
The difference is the size of grains. Rhyolite is the felsic igneous rock with fine-grained size. Whereas, granite is the equivalent in composition but with coarse-grained size.
Crystal size in igneous rock is predominately a factor of time spent in cooling from lava or magma. Samples with relatively large crystals are the result of the magma having spent a longer amount of time at ideal crystal forming temperatures for each mineral present.
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Texture or crystal size.
Gabbro has much larger grains that basalt does. This is because basalt cools faster than gabbro and has less time to form crystals.
Granite is considered a coarse grained rock.