Board Thread:General Discussion/@comment-3123266-20140303175822/@comment-2127388-20140426093602

Well in Odin's language magic is highly advanced science, and overall Asgardians does have more of the ancient way of naming things. So the Tesseract and Orb may be called "stones", reffering to their current forms, aka the cube, the orb and the ovoid (Tesseract, orb, Scepter Gem, respectively). With Asgardians you cant take their words literally :D

But you are right that Aether + Thor's lightning soldified it into a crystals/shards. Thought it is in contradiction with your theory. By your thoery, if you struck strong enough to the Infinity Stone like Tesseract, it will be shattered into many pieces and reveal either the gem inside, or the energy fluid like Aether. But when you struck Aether, it reverts to the solid form. I think that the explanation to this is, that while Aether is a fluid, when you struck it with lightning, that has thousands of degree of Celsium, the heat will fuse the Aether into crystals. Similar like when you make an explosion on sand, and in its place will be glass.