Talk:Gem Homeworld/@comment-27487924-20170518022021/@comment-31509668-20170603053249

Yes. For example Aluminum Oxide, known as corundum, is the material that forms sapphires and rubies. Silicon Dioxide forms amethysts and other quartzes and the chalcedony group. Given the size of that kindergarten Homeworld should have used up its atmospheric oxygen producing gems since there is no plant life to replace it.