Lot 16: "RAINBOW" STONE
by I.M. Chait
May 16, 2010
Beverly Hills, CA, USALive Auction
This unusual specimen of Iridescent Hematite is a riot of color. It is actually Turgite, which is a name given to a Goethite that has a surface alteration of Hematite and causes the iridescence. Some of the best examples come from La Union mine in Spain and from Graves Mountain, Georgia, USA. The pitted and heavily textured surface of this specimen is predominantly a dark gray shade, but is interspersed with simmering metallic areas and remarkable patches and streaks of dark and light green, red, pink, yellow, orange-green and pale blue - iron impurities that create a veritable rainbow indeed, 8 1/2 x 6 3/8 x 3 1/2 inches.