Is Basalt, Lava Stone, Bluestone the same stone?

Bluestone is not a geological term and does not fall within any distinct category such as igneous, sedimentary or metamorphic. Bluestone is a generic name for several rock types typically used in the landscape industry, however most bluestone is actually limestone which is soft. Bluestone is used to name light gray basalt stones in some countries because of its color, but in some other countries it is a hard sedimentary stone compared to a type of basalt.Basalt is formed when lava cools at a fast rate, usually gray to black in color and very hard and dense.Lava rock is a generic term to describe molten lava that has cooled slowly to create igneous rock. But as it is generally used in the stone market, lava stone is much more porous.So all “Basalt, Lava Stone, Bluestone” really are different rocks.