In the gem world, people often confuse chalcedony and agate. That is because chalcedony and agate can actually be called sister jade, so it is normal to look at it wrongly. Here is a brief introduction to the difference between chalcedony and agate. Both chalcedony and agate are cryptocrystalline (that is, particles that do not see crystals) quartz, which is collectively called chalcedony. In the gem world, the quartz crystal structure is called agate, and if the block has no grain structure, it is called chalcedony. Agate is a medium-to-low-grade jade material with a cryptocrystalline structure with obvious banding and glass luster, which is easy to distinguish. The difference between chalcedony and agate, agate cryptocrystalline, with obvious strip texture, glass luster, and chalcedony is microcrystalline, no strip-like texture, glass to grease luster. The crystal form is cryptocrystalline, with granular and fibrous structures. The aggregates are often stalactite, kidney-like, tuberculous, and dense. Agate has a strip of stripes in a variety of colors. Chalcedony and agate can be distinguished according to different colors, stripes and other patterns. Chalcedony products are easily confused with Dongling stone, dense jade, jasper, etc., and can be distinguished according to differences in color, texture and density. The chalcedony product has a bright, cryptocrystalline structure with a fine texture. The quartzite particles such as Dongling Stone are coarse and fine-grained, and the texture is relatively rough.
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