The witches are back again with the blackest of rocks!  Theses mistresses of goth turn their attention to the deep volcanic splendor of obsidian, and the crystalline opaqueness of black tourmaline.  You will learn about how they formed, how many thousands of years they've been used, properties, and so much more!  The Hex Rated ladies are ready to present to you more goth rock talk.  Grab all your stones and come lay on the floor with us!