Obsidian
Our selection of Obsidian gemstones include Mahogany Snowflake, Obsidian Rainbow, Obsidian Mahogany, and Spiderweb Obsidian. Colors vary from a rusty brown to a dark black. Choose from sizes and shapes that fit your design best!
For firing temperature and time on a variety of gemstones, refer to our Gemstone Firing Guide:
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