Colorado
ncat VHD11, Carnelian, Durango, Mesa Co., Colorado, USA
Pseudo after crinoid stem
ncat VHD10, Rhodochrosite, Quartz, Sunnyside Mine, Silverton, San Juan Co., Colorado, USA
Ex Keith Williams, Williams Minerals. LB Collection.
3692 Tungstite, Adams Mine (Adams Tunnel Mine), Cement Creek, Eureka Mining District, San Juan Co., Colorado, USA
Pale yellow crust on quartz. Not listed in Mindat, but hubnerite is. According to Rock Currier, almost all hubnerite specimens from this mine have been etched out of quartz using hydrofluoric acid.
3695 Coloradoite, Cripple Creek, Colorado, USA
Grey mass of coloradoite with brassy pyrite. Ex Ruth Coulsell Collection #133.
4722 Topaz, Tarryall Mts, Park Co., Colorado, USA
Single crystal. Ex Dave Bunk Minerals., Jim Mcewan, Lehigh Minerals
5587 Magnesiopascoite, Carnotite, Packrat Mine, Gateway, Gateway District, Mesa Co., Colorado, USA
Orange. Highly fluorescent yellow is likely carnotite., Al Wilkins