Vintage Black Chalcedony (Black retail Agate) with

Product Name: Vintage Black Chalcedony (Black retail Agate) with
The flattened globular shaped black chalcedony (black agate) bottle is totally black with the exception of an oval shaped open "eye" (1 inch long.) Black chalcedony, also known as Black Onyx, is an artificially-colored gemstone belong to the quartz family, The black color is created by suffusing Chalcedony in a sugar solution and then treating with sulfuric acid, causing the stone's appearance to change to a black color. The pale gray "eye" must have been an accidental result, which is best described by the Japanese word "Shibui", a Japanese aesthetics that means unexpected beauty. The flattened rectangular form slighly tapers towards the base ending in a large raised oval foot. The opening is concave, a good sign of age. It is matched with a red jasper cap on a round black disk and a cork stopper. Dating: Post retail 1970's Dimensions: 2 inches wide, 1 inch deep and 3 inches high Condition: good.