Gritstone, a hard course-grained sandstone, was used for grinding things to smaller pieces.
Sedimentary rock can be made up partially of igneous clasts, but igneous rock is igneous rock.
igneous (extrusive)
Igneous, examples include Granite and Basalt
Cooling and solidifying magma turns into igneous rock.
Because gritstone was formed from sand.
Gritstone, a hard course-grained sandstone, was used for grinding things to smaller pieces.
because its porous
Sedimentary rock can be made up partially of igneous clasts, but igneous rock is igneous rock.
Obsidian is an igneous rock.
igneous (extrusive)
Igneous, examples include Granite and Basalt
Cooling and solidifying magma turns into igneous rock.
Igneous rocks are formed by the solidification of molten materials.
yes, rhyolite is igneous
Igneous
it is igneous