Quartz is the most abundant mineral in the earth’s crust. Chalcedony is also quite common in the strata. It often coexists with many different minerals. Därför, chalcedony gems often appear in front of the world in different appearances. Some special chalcedony is a masterpiece of nature, and it is the favorite of collectors.
Because chalcedony minerals are very common and usually cheap, they are often used as materials for carving. The most famous carving is the famous relief gem Cameo from ldar-Oberstein in Germany. This relief gem is used Agate has bands of different colors for carving. Using the color of agate as the background color to make three-dimensional carving of the white part is quite difficult. Most of the price depends on the carving technique. This kind of relief gemstone is loved by many consumers and is well-known.
Crystal and chalcedony are the two most important series of gemstones in the quartz family. The difference is that the crystal is a crystalline quartz, which has obvious crystallization, and most of the crystals are visible to the naked eye; while the chalcedony is a cryptocrystalline quartz or microcrystalline. Microcrystalline Quartz, cryptocrystalline means that the crystal structure of quartz is very small and dense, and the grains of the crystal cannot be recognized with the naked eye, so it is called cryptocrystalline quartz. It belongs to the quartz family, and the chemical composition is also silica, but the crystallization pattern of chalcedony and crystal is different, which makes it have some differences in the gem characteristics of crystal. The refractive index of chalcedony is 1.535-1.539, and the specific gravity is 2.60-2.68. The structure of chalcedony is Aggregate, and the color is gray to white. The different colors of chalcedony are because of the relationship between different foreign elements or minerals. The more common result is the result of dyeing. The texture of chalcedony is transparent To be opaque.
OEM/ODM smycken Tillverkare Design Anpassad dina egna smycken
Låt oss komma igång : mo@kingjy.com
Guangzhou Jingying Focus på anpassade grossistringhalsband armband örhängen Sterling Silver 925 smycke,Sterling Silver Gold pläterad med 18K,14K,24K gult guld,Vitt guld och rosguld.,Logotypmärke eller andra ord med lasergravering enligt kundens krav.
Vår månatliga produktionskapacitet är upp till 50,000 bitarmband halsband örhängen ring smycken. Jingying ingår ett partnerskap med stormarknader,smyckekedjebutik,utloppsbutiker,smycken grossist,handlare och smyckemärke,Professionell tillhandahålla skapa anpassade smycken och massproduktion av hög kvalitet 925 Sterling Silver Jewelry Service.
OEM/ODM smycken Tillverkare Design Anpassad dina egna smycken
Låt oss komma igång : mo@kingjy.com
Guangzhou Jingying Focus på anpassade grossistringhalsband armband örhängen Sterling Silver 925 smycke,Sterling Silver Gold pläterad med 18K,14K,24K gult guld,Vitt guld och rosguld.,Logotypmärke eller andra ord med lasergravering enligt kundens krav.
Vår månatliga produktionskapacitet är upp till 50,000 bitarmband halsband örhängen ring smycken. Jingying ingår ett partnerskap med stormarknader,smyckekedjebutik,utloppsbutiker,smycken grossist,handlare och smyckemärke,Professionell tillhandahålla skapa anpassade smycken och massproduktion av hög kvalitet 925 Sterling Silver Jewelry Service.