Chalcedony is a cryptocrystalline number of quartz, with a waxy luster and a hardness of seven on the Mohs scale. It’s sometimes present in shades of white, grey, blue, inexperienced, or purple, and is usually utilized in jewellery and ornamental objects.
The identify “chalcedony” is derived from the traditional Greek metropolis of Chalcedon, the place the stone was first found. Chalcedony has been used for hundreds of years in quite a lot of cultures, and is believed to have non secular and therapeutic properties. It is usually a well-liked selection for jewellery and ornamental objects, resulting from its sturdiness and enticing look.