20hhgd.is ((BLUE OPAL, BARAHONAITE Al)), $10 MINIMUM BID, Gold Hill Mine, Tooele County, Utah, 5 x 3 x 2.5 cm, Miniature | |
Newer described species of powder blue Barahonaite Al with spherical mounds of crystals. Some specimens have an aqua blue glassy Opal also present as this one. ex Glenn Davidson specimen |