Very Rare blue to purple color change natural Fluorite(.50ct,VS, China) hand set in a sterling silver ring. A plentiful, affordable, and colorful gem, fluorite is considered one of the two most popular collector's stones worldwide, second only to quartz. Fluorite also has wonderful clarity with no need for enhancements. This pretty stone has so many appealing features, it's no wonder that Roman historian Pliny the Elder named fluorite his "most precious substance."Occurring naturally in a full spectrum of colors, fluorite has been given the distinction of being the "most colorful mineral in the world." It is most commonly found in cool shades of blue, green, pink, and purple, but all colors are possible. In addition to the rainbow of appealing hues, recent discoveries have yielded color-change fluorite, which turns from green or blue to purple.Rare in the gem world, fluorite also has an American history; in a burial pit in Illinois near the Ohio River, archeologists discovered a fluorite carving from the Mississippi Moundbuilders era, dating between 900 and 1650 A.D.Please ask questions. Size 616>,RcmdId ViewItemDescV4,RlogId p4%60bo7%60jtb9%3Feog4d71f%2B%3E16%3E-14a672e2b97-0x100-->