Obsidian can be an earth-stone, activating the basis chakra and grounding you within your connection into the Earth. It clears the aura of adverse Vitality, and can also be useful for scrying. In incredibly scarce scenarios tourmaline is found in blue colour, most famous staying Paraiba tourmaline and indicolite tourmaline. https://gemstone-beads-bracelet41841.digiblogbox.com/55745932/the-definitive-guide-to-gemstones-cast