The world of minerals is replete with amazing specimens, each of which has its own unique history. One of these amazing specimens is chalcedony with chrysocolla stalactites.
The sample, measuring 9x7x6 cm, was recovered from a mine in Arizona, USA, back in the 1960s by Frank Valenzuela. Frank, who worked as a caretaker, received this amazing specimen from a miner from Inspiration Mine, and the mineral was later sold at one of the American specialized auctions.
The description of this mineral stated that it was a classic example of quartz covered with chrysocolla stalactites, but it is unusual in that it was preserved entirely. The upper part was partially transparent, and there was a small hole in the rock through which light penetrated, creating amazing plays of refraction and shadows.
The unique combination of chalcedony and chrysocolla stalactites made this specimen not only valuable to collectors, but also visually arresting.
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Chalcedony is a cryptocrystalline form of silica, consisting of small aggregates of quartz minerals. It has the standard chemical structure of SiO2, based on the structure of quartz.
Such minerals may have a waxy luster, may be translucent or transparent, and their colors range from white to black, including blue-gray and shades of brown.
The story of this chalcedony with chrysocolla stalactites began decades ago, and since then this stone has overcome the path of time, maintaining its beauty and uniqueness. Today it continues to inspire collectors and mineral connoisseurs, becoming an iconic example in the world of natural stones.
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Source: irocks.com
