Onyx
About
Mohs Scale 6.5 to 7
A popular chalcedony quartz known for its durability and deep black color (often treated). Naturally, onyx is black with white parallel banding, yet solid black is the more desirable product for most jewelry designers, so most is altered to match this trend.
Known as the 'stone of the mind' or 'warrior's stone', onyx symbolizes strength, grounding and self-control. Revered for its absorption of negative energy, and as an aid in managing stress. It is also said to foster emotional stability, resilience and confidence, helping with decision making.
Aside from its use in jewelry, onyx can be found in tile work, countertops (calcareous onyx/travertine) and architecture. Due its translucent quality, it is often backlit. Onyx has also been used for centuries to carve bowls, sculpture and vases. It is also used in specialized high-wear precision tools, grinding equipment and laboratory components, due to its hardness.
Use & Care
Use: Last On, First Off: Apply all lotions, perfumes, and hair/body sprays before putting on jewelry to prevent chemical buildup that can dull and damage the surface. Activity Check: Remove jewelry before swimming (chlorine), showering (soap residue and chemical exposures), or high impact activities like exercise or gardening to avoid damage. Chemical Exposure: Avoid household cleaners, alcohol-based sanitizers, and vinegar, which can alter appearances permanently.
Cleaning: Clean with warm, soapy water and a soft cloth or brush.
Storage: Individual Separation: Store each piece in its own soft pouch or a lined compartment to prevent stones and metals of varying hardness scratching each other. Environment: Keep in a cool, dry place away from direct sunlight. Moisture Control: Consider adding silica packets to storage containers to absorb excess humidity that can tarnish metals and affect stones over time.
Longevity: Natural onyx maintains its color well, though dyed may fade from intense prolonged sunlight. Avoid chemicals, ultrasonic cleaners, and steam cleaners. Especially if dyed.