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Black Onyx Stone
Black Onyx Stone is the Birthstone for Leos and the anniversary Gemstone for the 7th year of marriage. Onyx is a selection of the Microcrystalline Quartz, called Chalcedony.
The name “Chalcedony” comes from Calcedon or Calchedon, an historical port on the ocean of Marmara in Asia Minor. ornamental substances had been as soon as mined in that vicinity and it changed into an active middle for trading diverse Stones. Onyx was used widely inside the past as bases and handles for gold objects, as well as for Stone inlay work. Onyx seals have been very popular with the Romans, who carved the pattern of the seal in negative comfort to provide a raised point. They frequently used Stones with several layers, each of a Unique shade, which was then personally carved to produce an extraordinary sample every 12 months.
They, in the beginning, used the Onyx call for a selection of Marble having white and yellow Veins. Onyx is the Greek word for “claw” or “fingernail” due to the fact those veins resemble the colors of a Fingernail. The marble continues to be referred to as “Onyx Marble,” being much less Precious and softer than onyx which has a hardness score of seven. Onyx turned into also Traditionally used for carving cameo Brooches.