Saturn Crystals. Healing Stones and Crystals associated with the planet Saturn are Blue Sapphire, Black Obsidian, and Stromatolite.
Saturn Crystals: Beneficial Healing Stones of Saturn

Guide to Crystal's and Gemstones
Saturn Crystals. Healing Stones and Crystals associated with the planet Saturn are Blue Sapphire, Black Obsidian, and Stromatolite.