color change – GoldWiser Copperfield

New mineral discovery

Posted on September 24, 2019September 24, 2019 by shirley

A recently discovered species of mineral will be named after John Koivula, veteran gemologist and researcher with GIA. A 1.16 ct. crystal of the new mineral—now christened johnkoivulaite—was found in the Mogok Valley of Myanmar by local gemologist Nay Myo. It was confirmed as a new mineral species by the GIA and California Institute of Technology,…

Alexandrite June birthstone

Posted on June 3, 2019June 5, 2019 by shirley

Alexandrite is another birthstone assigned to June. This is an extremely rare stone. The stone was first discovered during the time of Czar Nicholas of Russia, in the Ural mountains. The story is rather romantic compared to the discovery of other stones. Since the stone changes color under certain lighting condition, it has been called…