Onyx, Flat Oval, 16x12mm

Onyx is a variety of Chalcedony from the Quartz family, easily identifiable by its jet black colour and highly polished surface. These onyx have been treated with a dyeing process to uniform the black colour tones of the stone. Onyx has generally been known as a stone of protection and is excellent for promoting strength and improving self confidence and wise decision making. This flat oval onyx measures 16mm x 12mm. Onyx has a hardness of 6.5 - 7 on the Mohs scale and a specific gravity of 2.55 - 2.7. Please note that due to the nature of the stone, each oval is unique so colours will vary and slight natural inclusions are sometimes faintly visible. Care: As with all gemstones, care must be taken. It is not advised to place onyx stones in an ultrasonic, steam cleaner or chemical cleaning solution. Onyx can be easily cleaned with a warm soapy water mix or an untreated cloth. It is advised to avoid exposing onyx to prolonged periods of heat and light. A slight tolerance of +/- 0.25mm should be expected with these stones and these onyx are sold individually. Oval flat (flat backed) Natural gemstone Hardness: 6.5 - 7 on the Mohs scale Healing properties: Physical and Emotional Strength, Protecting