ncat WD113 Cassiterite, Hyalite, Erongo Mountains, Karibib, Erongo, Namibia October 29, 2020 Pendleton Africa Namibia Nice sharp group of cassiterite crystals with a partial coating of fluorescent green hyalite opal. The hyalite fluoresces under longwave UV (Convoy) but is much brighter under shortwave. The green fluorescence is due to uranyl ions.
North and Central Americas United States Utah 5046 Barahonaite-(Al), Gold Hill Mine, Gold Hill, Tooele Co., Utah, USA September 29, 2019
Europe Russia 5498 Lomonosovite, Lovozero Massif, Murmanskaya Oblast’, Northern Region, Russia October 5, 2019
Europe Norway 5649 Armenite, Epidote, Bratteskjerpet Mine, Overberget Mining Field, Kongsberg silver mining district, Kongsberg, Buskerud, Norway October 5, 2019