Is an air stone the same as a stone?

Is the American stone the same as the English stone?"Of cause its different that's why the American weigh more than us English. My word is to them stop eating cookies.

Yes. Philosophers stone is the British version and sorcerers stone is the American version.

Topaz is a mineral. Amber is fossilized tree resin.

Yes

Let us say the stone is suspended in a medium by an ideal spring, which displays the "weight" of the stone in that medium. The stone reads "w" pounds in weight in air. The same stone will read less...