Carnelian

Like all varieties of chalcedony?, Carnelian is a variety of quartz with microscopic fibers and grains in it. It gets its red color from iron oxides.

• Period: 1
  • Garnets Feldspars
  • Hardness: 6.5-7
• Group: Group IIA?

See also Matter, Gems, Mg and Garnets Feldspars.

— Scotus - 20 Jan 2002