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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1479
Location: Cambridge
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 Posted: Dec 23, 2010 16:22 Post subject: Re: A mineralogical trip through the states of USA - Colorado |
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In Bocamina there is a good photo of a Gold from Breckenridge that is in the Folch Collection (which is clearly not in California, as stated in the magazine), if you have a copy of that number.
James
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am mizunaka
Joined: 09 Apr 2010
Posts: 2215
Location: USA
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| Posted: Mar 22, 2011 04:25 Post subject: Re: A mineralogical trip through the states of USA - Colorado |
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One more for Colorado.
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Smoky quartz and amazonite
Smoky Hawk Mine, Jewel Pocket,
Teller Co., Colorado
Specimen size 3.8 x 4 cm. |
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29880 Time(s) |
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Joaquin Montoro
Joined: 25 Nov 2010
Posts: 225
Location: Murcia (Spain)
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| Posted: Mar 22, 2011 09:05 Post subject: Re: A mineralogical trip through the states of USA - Colorado |
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Another rich silver ore...
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| Chlorargyrite (var. Embolite) Bassick Mine, Custer Co. Colorado (USA) 9x5x5 cm. 633 grams. |
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29861 Time(s) |
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29942 Time(s) |
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| Description: |
| Solid and dense "hornsilver" |
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29902 Time(s) |
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29948 Time(s) |
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| Description: |
| Bromian Chlorargyrite.- Bassick Mine, Custer Co. Colorado (USA) 9x5x5 cm. |
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29851 Time(s) |
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_________________
Damnati ad Metalla |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 5080
Location: Barcelona
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| Posted: May 31, 2011 16:38 Post subject: Re: A mineralogical trip through the states of USA - Colorado |
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One rarity. Not only the "WoooW" specimens have room in this section! ;-)
The Hummerite is a rare vanadate, and the Hummer Mine is the type locality for the species
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Hummerite
Hummer Mine, Paradox Valley, Montrose County, Colorado, USA
Mined about 1959
Former Folch Collection
Specimen size: 4.6 × 4.6 × 2.2 cm.
Photo: Reference Specimens |
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29773 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2215
Location: USA
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| Posted: Jul 23, 2013 20:25 Post subject: Re: A mineralogical trip through the states of USA - Colorado |
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...
| Description: |
Rhodochrosite, Quartz, and Fluorite
Sunnyside Mine, Eureka District, San Juan Co., Colorado, USA
3.3 x 2.5 cm |
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27841 Time(s) |
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chris
Site Admin
Joined: 12 Jul 2007
Posts: 538
Location: Grenoble
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| Posted: May 08, 2016 04:39 Post subject: Re: A mineralogical trip through the states of USA - Colorado |
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Another Rhodochrosite from a famous mine.
| Mineral: | Rhodochrosite, Tetrahedrite, Chalcopyrite, Quartz |
| Locality: | | Sweet Home Mine, Corner pocket, Watercourse raise, Mount Bross, Alma District, Park County, Colorado, USA |  |
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| Dimensions: | 13x11 cm |
| Description: |
| Larget rhodo is 1 cm on edge, largest tetra about 1.5 cm on edge and chalcopyrite cluster 1.5 cm |
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24902 Time(s) |
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chris
Site Admin
Joined: 12 Jul 2007
Posts: 538
Location: Grenoble
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| Posted: May 08, 2016 04:44 Post subject: Re: A mineralogical trip through the states of USA - Colorado |
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A large specimen of dark yellow sphalerite on galena and amethyst bed.
| Mineral: | Sphalerite, Galena, Quartz (var Amethyst) |
| Locality: | | Commodore Mine, Creede District, Mineral County, Colorado, USA | |
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| Dimensions: | 15x10 cm |
| Description: |
| Largest sphalerite cluster is about 3 cm. The largest galena is about 1 cm, while the amethyst crystal are millimetrics. |
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24850 Time(s) |
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vic rzonca
Joined: 18 Nov 2008
Posts: 820
Location: MA
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| Posted: Aug 09, 2016 08:30 Post subject: Re: A mineralogical trip through the states of USA - Colorado |
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Creede, Colorado..
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| _Mine at Creede, Colorado. |
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24368 Time(s) |
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vic rzonca
Joined: 18 Nov 2008
Posts: 820
Location: MA
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| Posted: Aug 09, 2016 08:50 Post subject: Re: A mineralogical trip through the states of USA - Colorado |
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Colorado
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24353 Time(s) |
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1479
Location: Cambridge
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| Posted: Aug 09, 2016 08:59 Post subject: Re: A mineralogical trip through the states of USA - Colorado |
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| I was last there in 1982, and got out just before the flood waters arrived
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vic rzonca
Joined: 18 Nov 2008
Posts: 820
Location: MA
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| Posted: Aug 09, 2016 21:33 Post subject: Re: A mineralogical trip through the states of USA - Colorado |
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More of Cripple Creek.
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22916 Time(s) |
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| Description: |
| _Battle Mountain, Cripple Creek District, Teller County, CO. |
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22868 Time(s) |
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| Description: |
| _The Gold King Mine, Cripple Creek, Teller, Colorado. |
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22931 Time(s) |
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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| Posted: Sep 30, 2016 10:31 Post subject: Re: A mineralogical trip through the states of USA - Colorado |
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One of the new Fluorites with Barite after Laumonite from Cripple Creek. These specimens were collected by Rich Fretterd and the mine owner, Jack McGee during filming for the Season 4, Episode 4 "Cripple Creek Crystals" episode of Prospectors that aired January 2016.
Lustrous, gemmy, lilac-purple Fluorite cubes to 4 mm partly cover several intersecting sprays of flattened, elongated, tabular, white Barite epimorphs after Laumontite(?). The contrasting colors make for a very aesthetic specimen. The perceived color of these Fluorites varies depending on the color temperature of the lighting, and these photos are a bit more violet than they appear under daylight. They are not strongly fluorescent under UV lighting. This piece is very aesthetic, displays well from all sides, and is a top example of specimens from this limited discovery.
Rich Fretterd (Prospectors) specimen.
| Mineral: | Fluorite with Barite after Laumonite |
| Locality: | | Moffat Tunnel, Cripple Creek District, Teller County, Colorado, USA | |
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| Dimensions: | 146 x 130 x 70 mm |
| Description: |
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22561 Time(s) |
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| Mineral: | Fluorite with Barite after Laumonite |
| Locality: | | Moffat Tunnel, Cripple Creek District, Teller County, Colorado, USA | |
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| Dimensions: | 146 x 130 x 70 mm |
| Description: |
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22527 Time(s) |
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antoniopedro
Joined: 03 Aug 2016
Posts: 6
Location: Madrid
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| Posted: Sep 30, 2016 15:37 Post subject: Re: A mineralogical trip through the states of USA - Colorado |
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Good night,
Very beautiful fluorite with great aesthetic formations. Best regards,
Antonio Pedro
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vic rzonca
Joined: 18 Nov 2008
Posts: 820
Location: MA
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| Posted: Mar 03, 2017 17:29 Post subject: Re: A mineralogical trip through the states of USA - Colorado |
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Gold rush.
| Description: |
| Ore teams and more in Idaho Springs, Colorado, 1894. |
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21622 Time(s) |
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