- Rhodium Plated Metal
- Black Onyx Semi-Precious Stones
- One Pair of Cufflinks ( a set )
What is Black Onyx?
Black Onyx is a silicate stone created by silicon, leaving solution and condensing as a quartz mineral. It resembles agates and is quite hard, with no acid reaction. It is made up of alternating colored groups of fine-grained quartz. It has a rough texture with fine intergrowths of quartz and morganite silica crystals.