Description

Carnelian Tumbled Stones

Carnelian has a trigonal crystal system and is the mineral class of oxide in the quartz group. Its coloring can range from red, orange, yellow and brown with orange being the most common. Carnelian is a form of Chalcedony that contains iron and is formed in areas of alkaline and acid volcanic rock out of magmatic silicic acid solutions that contain iron. The red to brown shades of carnelian are also known as sard.