Red Obsidian & Green obsidian

Red obsidian: Red obsidian is a iron rich volcanic glass. I think it would be cool to add this because it could be used for a lot, you could use it to make iron reinforced glass, weapons, arrows, decorative items like mosaics, or just as a building block to add some pizzazz to your nether or even just overworld base. Green Obsidian: Green obsidian is a volcanic glass that contains impurites such as magnesium and iron, giving it the rich green color. I think this could also be used but in weapons or decorative blocks, but also could be used to refine potions in the brewing stand or as an amulet or armor, based on people's beliefs in it's spiritual power of energy. Ps. I also think that colored obsidian would look really pretty and kind of want to use it in my builds.