How to Tell Black Tourmaline from Obsidian Like a Pro

You might confuse black tourmaline and obsidian at first glance, but there are clear differences. Obsidian is smooth and glassy, while tourmaline often has ridges or striations. Obsidian breaks with sharp, curved edges, whereas tourmaline tends to form in structured columns. Light also reflects differently—obsidian has a glassy sheen; tourmaline, a duller luster. You’ll feel the difference in weight and texture too. Learning these traits enhances your gemstone knowledge. For authentic obsidian and more, explore Tree of Life Gems’ carefully curated crystal collection.

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