Colorado

3940 Microcline (Amazonite), Glacier Peak mines, Florissant, Teller Co., Colorado, USA

Dehne McLaughlin 2/2005 Video best viewed full screen.

April 22, 2020

Colorado North and Central Americas United States

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.

April 21, 2020

Colorado North and Central Americas United States

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.

October 27, 2019

Colorado North and Central Americas United States

3695 Coloradoite, Cripple Creek, Colorado, USA

Grey mass of coloradoite with brassy pyrite. Ex Ruth Coulsell Collection #133.

October 21, 2019

Colorado North and Central Americas United States

4722 Topaz, Tarryall Mts, Park Co., Colorado, USA

Single crystal. Ex Dave Bunk Minerals., Jim Mcewan, Lehigh Minerals

October 5, 2019

Colorado North and Central Americas United States

4835 Phenakite, Beryl, Beryl Gem Claims, Mt Antero, Chaffee Co., Colorado, USA

Richard Bell

October 5, 2019

Colorado North and Central Americas United States

4744 Pyroxmangite, Pyrite, Sphalerite, Sunnyside Mine, Bonita Peak, Gladstone, Eureka District, San Juan Co., Colorado, USA

October 5, 2019

Colorado North and Central Americas United States

4745 Sulphur, Pyroxmangite, Galena, Pyrite, Sunnyside Mine, Bonita Peak, Gladstone, Eureka District, San Juan Co., Colorado, USA

October 5, 2019

Colorado North and Central Americas United States

4746 Pyrite, Pyroxmangite, Sunnyside Mine, Bonita Peak, Gladstone, Eureka District, San Juan Co., Colorado, USA

October 5, 2019

Colorado North and Central Americas United States

5587 Magnesiopascoite, Carnotite, Packrat Mine, Gateway, Gateway District, Mesa Co., Colorado, USA

Orange. Highly fluorescent yellow is likely carnotite., Al Wilkins

October 5, 2019

Colorado North and Central Americas United States

30003 Smoky Quartz, Dreamtime Claim, Crystal Peak, Colorado

October 5, 2019

Colorado North and Central Americas United States

10010 Anglesite, Colorado, USA

Drusy micro anglesite crystals on matrix. Ex US National Museum (Smithsonian) Collection, Department of Minerals, catalogue number 14121. Ex Hawes Collection acquired in 1884.

October 5, 2019

Colorado North and Central Americas United States

4652 Sidwillite, Lake Como, San Juan Co., Colorado, USA

Type Locality. Tiny yellow patches on matrix. Ex Wolfgang Henkel.

October 5, 2019

Colorado North and Central Americas United States

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

October 5, 2019

Colorado North and Central Americas United States

3693 Britholite-(Y), Raymond, Colorado, USA

October 3, 2019

Colorado North and Central Americas United States

3836 Berryite, Missouri Mine, Park Co., Colorado, USA

October 3, 2019

Colorado North and Central Americas United States

3494 Corvusite, Uravan, Montrose Co., Colorado, USA

October 3, 2019

Colorado North and Central Americas United States

2693 Liebigite, Schwartaelder Mine, Colorado, USA

October 3, 2019

Colorado North and Central Americas United States

2594 Weberite, Eureka Tunnel, St Peter’s Dome, El Paso Co., Colorado, USA

October 3, 2019

Colorado North and Central Americas United States

6003 Sylvanite, Cripple Creek, Teller Co., Colorado, USA

Loose crystal aggregate. Bought at Tucson 2012

October 2, 2019

Colorado North and Central Americas United States

5281 Phenakite, Mt Antero, Chaffee Co., Colorado, USA

September 29, 2019

Colorado North and Central Americas United States

5160 Gold, Colorado

JL0644. Ex Museum Vic

September 29, 2019

Colorado North and Central Americas United States

ncat JP3089, Silver, Wyoming Mine, Gilman District (Battle Mountain District; Red Cliff District), Eagle Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP3752, Silver, Commodore No. 5 Mine, Commodore Mine, Amethyst vein, Creede District, Mineral Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP3534, Galena, Sphalerite, Camp Bird Mine, Camp Bird, Sneffels District (Sneffels – Red Mountain District; Mount Sneffels District), Ouray, Ouray District, San Juan Mts, Ouray Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP3183, Thomsonite-Ca, North Table Mountain, Golden, Golden District, Jefferson Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP2957, Silver, Wyoming Mine, Gilman District (Battle Mountain District; Red Cliff District), Eagle Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP1863, Gold, Petzite, Quartz, Tomboy Mine, Telluride District (Upper San Miguel District), San Juan Mts, San Miguel Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP1959, Silver, Barite, Bulldog Mountain Mine (Bulldog Mountain operation), Creede District, Mineral Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP1777, Celadonite, Nontronite, Wolf Creek Pass, San Juan Mts, Mineral Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP1860, Phenakite, Mt Antero, Chaffee Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP1861, Scheelite, Camp Bird Mine, Camp Bird, Sneffels District (Sneffels – Red Mountain District; Mount Sneffels District), Ouray, Ouray District, San Juan Mts, Ouray Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP1706, Dolomite, Quartz, Sunnyside Mine group (American Tunnel Mine; American Tunnel; Gold King Mine; Washington Mine; Belle Creole; Gold Prince; Brenneman Mine; Mogul Mine), Bonita Peak, Gladstone, Eureka District, San Juan Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP1569, Chlorite, Wolf Creek Pass, San Juan Mts, Mineral Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP1561, Silver, Mollie Gibson Mine (Molly Gibson Mine), Aspen, Aspen District (Roaring Fork District), Pitkin Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP1562, Enargite, Pyrite, Quartz, National Belle Mine (National Bell Mine), Red Mountain, Red Mountain District, Ouray Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP1564, Anatase, Quartz, Ores and Metals Mine, Squaw Gulch, Ouray District (Uncompahgre District), Ouray Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP1565, Anatase, Quartz, Muscovite, Silver Mountain Mine, Ouray District (Uncompahgre District), Ouray Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP1566, Proustite, Sphalerite, Chalcopyrite, Pyrite, Galena, Wyoming Mine, Gilman District (Battle Mountain District; Red Cliff District), Eagle Co., Colorado, USA

Only pyrite and silver in Mindat

September 23, 2019

Colorado North and Central Americas United States

ncat JP1567, Cuprite var Chalcotrichite, Silver, Commodore No. 5 Mine, Commodore Mine, Amethyst vein, Creede District, Mineral Co., Colorado, USA

September 23, 2019

Colorado North and Central Americas United States

ncat JP854, Hummerite, Hummer Mine, Jo Dandy Mine (Paradox D; Hummer; C; Blackburn; Yellow Bird No. 1; Oversight; Broker), Paradox Valley, Uravan District, Montrose Co., Colorado, USA

Type Locality

September 23, 2019

Colorado North and Central Americas United States

ncat JP636, Zunyite, Zuni Mine (Zuni Mine), Anvil Mountain, Red Mountain District, San Juan Co., Colorado, USA

Type Locality

September 23, 2019

Colorado North and Central Americas United States

ncat JP565, Hubnerite, Silverton, Animas District, San Juan Co., Colorado, USA

Fluorescent fluorite cubes

September 23, 2019

Colorado North and Central Americas United States

7078 JL263, Hummerite, Hummer Mine, Jo Dandy Mine (Paradox D; Hummer; C; Blackburn; Yellow Bird No. 1; Oversight; Broker), Paradox Valley, Uravan District, Montrose Co., Colorado, USA

Type Locality. ex Joan Lamond Collection

September 23, 2019

Colorado North and Central Americas United States

2482 Metarossite, Burro mine, Slick Rock (near), San Miguel Co., Colorado, USA

September 22, 2019

Colorado North and Central Americas United States

2401 Microcline (Amazonite), Florissant, Colorado, USA

September 22, 2019

Colorado North and Central Americas United States

2372 Fernandinite, Sunday Mine, Colorado, USA

September 22, 2019

Colorado North and Central Americas United States

2293 Zunyite, Zuni Mine, Anvil Mt., Silverton, San Juan Co., Colorado, USA

September 22, 2019

Colorado North and Central Americas United States

1928 Spessartine, Ruby Mountain, Colorado, USA

September 22, 2019

Colorado North and Central Americas United States

1654 Phenakite, Mt Antero, Colorado, USA

September 22, 2019

Colorado North and Central Americas United States

1560 Halloysite, Wagon Wheel Gap, Colorado, USA

September 22, 2019

Colorado North and Central Americas United States

1356 Polycrase-(Y), Clora May Mine (Mina Blanca; Clara May Lode), Trout Creek Pass pegmatite District, Buena Vista, Chaffee Co., Colorado, USA

Dark mass of crystalline polycrase.

September 22, 2019

Colorado North and Central Americas United States

1264 Tetradymite, American Nettie mine, Ouray Co, Colorado, USA

September 22, 2019

Colorado North and Central Americas United States

1219 Calcite, after Aragonite, Fort Collins area, Larimer Co., Colorado, USA

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...