2 ms·When do we get our transparent aluminum? I was promised it with Star Trek IV.by queuebert 3y agoWhen do we get our transparent aluminum? I was promised it with Star Trek IV.bagels 3y agoIt's called sapphire.tekla 3y agohttps://en.wikipedia.org/wiki/Aluminium_oxynitride https://en.wikipedia.org/wiki/Aluminium_oxynitride