Jewelry Care Malachite Malachite is especially fragile. Protect malachite from scratches and sharp blows. Also avoid large temperature changes such as leaving it by a heater vent or in a hot car. Do not clean malachite in a home ultrasonic cleaner. Washing malachite in water will remove its finish. Malachite is always coated with a protective polish. This polish will wash off. Imitation malachite has very regular black or white banding.

Click on the gem name for more information about that stone. Alexandrite Amber Amethyst Aquamarine Aventurine Bloodstone Carnelian Chrysoprase Citrine Coral Diamond Emerald Garnet Jasper Kunzite Lapis Lazuli Malachite Moonstone Obsidian Onyx Opal Pearl Peridot Quartz Rose Quartz Ruby Sapphire Tanzanite Tiger Eye Quartz Topaz Tourmaline Turquoise Zircon