Properties
Mineral group: Quartz
Chemistry: SiO2
Color: Black green blue and others
Crystal system: Trigonal
Mohs Scale hardness: 7
Refractive index: 1,544-1,553
Birefringence: +0,009
Specific gravity: 2,63-2,65
Other
Quartz is a mineral in a broad sense with similar chemical composition. Quartz can be divided into two main subsets. Crystalline (macro-crystalline), the variety is generally associated with quartz. This group includes Quartz, Amethyst, Smoky Quartz, and others. The second group are polycrystalline (micro-crystalline), and have in turn several subgroups. Here we find the groups Chalcedony, Jasper, Quartzites and silicate replacements. Known examples here are Onyx, Agate, Carnelian and different varieties of jasper and Tiger’s eye. Often black are called onyx and blue or green is called chalcedony.
Onyx in Healing (Source: ChatGPT)
Onyx is a powerful and grounding stone known for its stabilizing and protective energy. It is often associated with strength, endurance, and the ability to handle stress and challenges. In crystal healing, onyx is used to strengthen self-discipline and create emotional balance.
Read/Learn more about Onyx – Healing Properties
