abyssitite is definitely a metamorphic ore of cobalt found in zhe hearts of mountains
pure quwyite can never naturally form, in fact most quwyite is so impure that only trace amounts of it can be found in other materials. Despite this, quwyite is quite common and can be found almost anywhere. quwyite is fairly easy to extact, so pure quwyite can be refined. Refined quwyite actually has a lot of the properties of glass, most notably being almost invisible to the naked eye. This is due to the fact that not only does it not refelct any visible forms of light, but it also, strangely enough, doesn't refact light either.
The first to discover quwyite was Flint Lockwood, when he used it to make his trademark Invisible Coffee Table™.
Rubellite... Such gorgeous reds and purples...