Type Locality for theisite. Incorrectly labelled as La Plata Co. (refer comment in Mindat). Acquired by Joan Lamond in 1997 from a Swiss Collection for $2.00.
Dehne McLaughlin 2/2005 Video best viewed full screen.
30072 Rhodochrosite, Quartz, Sunnyside Mine, Bonita Peak, Gladstone, Eureka Mining District, San Juan Co., Colorado, USA
Rhodochrosite epimorphs after ?? With tiny quartz crystals. Ex Barry Johnson Collection. Video best viewed full screen.
Pseudo after crinoid stem
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.
Orange. Highly fluorescent yellow is likely carnotite., Al Wilkins
Type Locality. Tiny yellow patches on matrix. Ex Wolfgang Henkel.
4601 Hessite, Red Cloud Mine (Chicago; Colorado Occurrence), Gold Hill District, Boulder Co., Colorado, USA
ex John Muntyan – Colorado School of Mines Geology Museum :92C3
Loose crystal aggregate. Bought at Tucson 2012
Pseudomorph. Labelled as calcite ps hanksite, Larimer Co., California. Described as rarely seen pseudomorph with label indication that it was in the American Museum Natural History and dated 12/11/78. Diameter is 2.5 cm. There are...
0519 Guettardite, Brobdignag Mine, Anvil Mountain, Red Mountain District, San Juan Co., Colorado, USA
Labelled as from Ouray, but probably Brobdignag Mine. Black lusterous material in vugs in broken surface of the specimen.