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How are rocks with grains classified?
They are eather fine grain or course grain. Granite are course Grain, Basalts are fine grains.
Is obsidian course-grained or fine-grain?
fine grained
Can extrusive igneous rocks be both fine grain and course grain?
No only fine grained as they cool quickly when out of the earths mantle so no time for crystals to form.
Is rhyolite coarse grain or fine grain?
fine grained
What effect does a fast cooling rate have on grain size in igenous rocks?
Fast cooling lava or magma creates an aphanitic or small crystal (grain) textured igneous rock.
What is the difference between fine-grain and coarse-grain?
Coarse is ruff/hard, and fine grain is smooth/ soft!
What is the difference between coarse and fine grain?
Coarse is ruff/hard, and fine grain is smooth/ soft!
What are the different types of thread?
Fine Thread and Course Thread
Is sandstone grain fine?
Yes it is fine grained.
What is bituminous coal texture and grain?
Fine grain, rough and soft
What is a grain mill used for?
Grain Mills are used for grinding grain (ex. Wheat grain) and that results in a fine flour.
Fine textured rocks have what kind of grain?
Fine textured rocks have a type of grain referred to as aphanitic. This means that its grain is so tiny that it cannot be seen with the naked eye.
