Onyx is a variety of agate. Onyx is also used as onyx, agate, horse brain, etc. It is a type of onyx mineral, often a ribbon-shaped block mixed with opal and cryptocrystalline quartz, with a hardness of 7-7.5 degrees, a specific gravity of 2.65, and color Quite layered. There are translucent or opaque. Commonly used as ornaments or play rewards. Strings of onyx balls are often seen in ancient funerals.
Onyx is a cryptocrystalline substance of quartz, which refers to a stone pulp with a straight stripe pattern. Onyx has different color layers and is often used as relief. It is also used in high-end interior design materials because of its light transmission. Translucent onyx as an interior design material is usually highly polished to make it more translucent, white, brown, brown, etc. Onyx used for relief is often pale or white for sculpting, and its base color is often dyed black, which is counter-productive. Its English Onyx now also expresses pure black agate, mostly used as jewelry, quite stable. The red onyx (Sardonyx) is a flesh-red variety that was very valuable in ancient Roman times and was used as a seal.
Green onyx does not exist in natural onyx, but it can be turned green using artificial methods. The finished onyx is beautiful and shiny.