Black Onyx

Onyx is a form of cryptocrystalline quartz (a variety of chalcedony), known especially in deep black color, sometimes with white or gray stripes. Over time, it has been attributed properties of protection and power.

It is durable but may show fine cracks upon impact. Moderate care keeps it in excellent condition, avoiding contact with harsh chemicals.

Maintenance Black Onyx

  • Moderate care

    • Warm water with soap or a gentle professional jewelry solution.
    • Avoid ultrasonic cleaners if the stone is not clearly compatible (e.g., some amethysts or topazes may be affected).
    • Avoid steam cleaning unless specifically safe for that stone.

  • Exposure Precautions

    • Remove jewelry before intense physical activities or entering chlorinated pools.
    • Avoid contact with strong chemicals (chlorine, ammonia).
    • Some stones may lose color with prolonged sun exposure; store them properly.

  • Storage Recommendations

    • Store in soft pouches or separate compartments to prevent scratches.
    • If the metal oxidizes easily (like some silver alloys), consider anti-tarnish strips.
    • Avoid areas with high humidity (bathrooms, saunas).