Elegant Black Onyx Necklaces

To care for a black onyx necklace, it's essential to protect the semi-fragile and porous stone from harsh chemicals, scratches, and extreme temperature changes. Gentle, consistent cleaning and proper storage will help maintain its deep luster.

Daily wear guidelines
To preserve your onyx necklace, take a few simple precautions during daily wear.
• Avoid harsh chemicals. Put on your jewelry last after applying cosmetics, hairspray, and perfume, which can dull the stone's finish.
Remove for specific activities. Take your necklace off before showering, swimming, doing chores, or engaging in sports. Exposure to soaps, chlorine, sweat, and physical impact can damage the stone.
• Avoid temperature extremes. Sudden changes in temperature, such as leaving it in a hot car or near a heat source, can cause the stone to crack.
• Handle gently. When putting on or taking off the necklace, hold it by the chain rather than the stone to minimize transferring dirt and oils from your hands to the onyx.

Cleaning a black onyx necklace
Because black onyx can be porous and is sensitive to chemicals, a gentle, water-based cleaning method is recommended. Do not use ultrasonic cleaners or abrasive tools.

Steps for safe cleaning:
• Prepare a mild solution: Mix a few drops of mild, phosphate-free dish soap into a bowl of lukewarm water. Do not use hot water, as the sudden temperature change could harm the stone.
• Use a soft cloth: Dip a soft, lint-free microfiber cloth into the solution and wring it out so it is not dripping.
• Wipe the stones gently: Carefully wipe each onyx stone to remove dirt and oils. For hard-to-reach areas around the stone or setting, use a soft-bristled brush, like a baby toothbrush.
• Rinse thoroughly: Use a clean, damp cloth to wipe away any soap residue from the entire necklace.
• Dry completely: Pat the necklace dry with a soft, clean cloth. Allow it to air-dry completely on a flat, soft surface before storing.

Storing a black onyx necklace
Proper storage is critical for preventing scratches, as black onyx (6.5 to 7 on the Mohs hardness scale) is softer than many other gemstones.
• Store separately: Keep your onyx necklace in its own soft pouch made of cotton or velvet, or in a fabric-lined compartment of a jewelry box.
• Prevent tangles: For long necklaces, you can thread the chain through a straw and then clasp it to prevent it from tangling during storage or travel.
• Avoid sunlight and humidity: Store the necklace in a cool, dry place away from direct sunlight, as UV rays can cause dyed onyx to fade over time.