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Chalcedony

Chalcedony is not actually recognized by its name. scientists addresses it as "Microcrystalline Quartz", and precious stone collectors and gem dealers describe each variety by its meticulous name. There are hundreds of dissimilar Chalcedony varieties, and a lot of them have gem uses. In the world of gem deal, the name Chalcedony talks about only white or lightly colored, nodular or huge Chalcedony. The diversity Agate is for the most part diverse and fashionable of all Chalcedony. It is exceptionally plentiful and creates remarkable and dazzling examples. The majority of the Agate is hideous in an acceptable state. Specimens have got to be trimmed and cultured to take out their bursting beauty. Most samples sold to interested collectors have previously been treated, in the form of cultured slabs.

Several chalcedonies are porous and are colored in different shades. Several agate samples from Brazil are tinted and are sold to the purchaser without their knowledge of this fact. With knowledge, one can generally tell by the shade of an agate if it has been colored. Chalcedony typically pseudomorphs after organic materials. A well-known example is petrified wood, which has been completely altered into chalcedony (or one of several other minerals). In the Petrified Forest National Monument in Arizona, an entire forest was transformed into petrified wood, and remnants of this ancient forest can be seen in the massive silica-clad logs that are situated in the area. Another well-known pseudomorph is chalcedony after coral. Under Tampa Bay in Florida, a large amount of coral has now been replaced by chalcedony, and its original form is preserved.