Rock and minerals macro video: Quartz on rock exposed to high heat

I have a sample of quartz that is really unique, it has some really interesting colors and textures going on with it. It has some yellow, black, brownish and reddish colors throughout the stone. But I dont know what it is exactly but it was found at Graves Mountain, Georgia.

It looks like it has been exposed to some really high heat. Just looking at the charcoal like appearance of that stone, which is known for finds around Graves Mountain. There are "vents" where extremely hot gases pass through, and sometimes can help help form exotic crystals like Iridescent Hematite.