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No. It is a fine grained extrusive volcanic rock that is light in color. It is usually not porous.
Porous rocks.
These are some porous rocks: chalk, limestone, sandstone, pumice, scoria.
The extrusive volcanic rock pumice can float on water. Other extrusive volcanic rocks are not so lucky.
Very porous rocks such as pumice can be very light and have the potential to float on water. Pumice is a volcanic rock.
Porous rocks are like sandy soil and water seeps through these rocks.
porous rocks are rocks through which water etc. can seep or pass through.
Yes. Volcanic rocks are extrusive igneous rocks.
Volcanic rocks with gas bubbles are called vesicular. This, however, is a descriptive term rather than an actual rock types. Some vesicular volcanic rocks include pumice, scoria, and vesicular basalt.
No. Volcanic rocks are made of the same materials that other rocks are.