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A mineralogical trip through the states of USA - Colorado
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Jordi Fabre
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PostPosted: Dec 02, 2010 10:59    Post subject: A mineralogical trip through the states of USA - Colorado  

Colorado the "Centennial State"


Usually I tend to start the thread with some unsual specimen leaving room for other people to publish specimens, but in this case....;-)



Rhodochrosite - Corner Pocket, Watercourse Raise, Sweet Home Mine, Alma, Colorado USA.jpg
 Description:
Rhodochrosite with Tetrahedrite and Quartz
Corner Pocket, Watercourse Raise, Sweet Home Mine, Alma, Colorado, USA
Mined in September 1994
Specimen size: 4 × 2.8 × 2.5 cm.
Main crystal size: 1.5 × 1.5 cm.
Photo: Reference Specimens
 Viewed:  34339 Time(s)

Rhodochrosite - Corner Pocket, Watercourse Raise, Sweet Home Mine, Alma, Colorado USA.jpg


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PostPosted: Dec 02, 2010 11:29    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

As Jordi started with the Sweet Home Mine, I'm going to complete it with some specimens having both Rhodocrosite and sulfides and/or sulfosalts as associated minerals.


CRoctapocket.jpg
 Description:
Rhodochrosite, Galena, Chalcopyrite (with Bornite coating), Quartz
Octahedron Pocket, Mini King Rise, Sweet Home Mine, Alma, Colorado, USA
Specimen size: 6.5 x 6 x 3 cm.
Main rhodo cluster: 2.5 cm.
Main Galena crystal : 1 cm
Photo: Richard Jackson
 Viewed:  34291 Time(s)

CRoctapocket.jpg



CRtet2.jpg
 Description:
Rhodochrosite, Tetrahedrite, Bornite, Quartz
04-11 Pocket, Tetrahedrite Vein,Sweet Home Mine, Alma, Colorado, USA
Specimen size: 12 x 8 x 5 cm.
Main rhodo crystal : 1.5 cm.
Main Tetra crystal : 3.5 cm.
Photo: Richard Jackson
 Viewed:  34312 Time(s)

CRtet2.jpg



sh3445c1.jpg
 Description:
Rhodochrosite, Pyrite, Tetrahedrite, Chalcopyrite, Quartz
Steve's Pocket, Sweet Home Mine, Alma, Colorado, USA
Specimen size: - cm
Rhodo crystal : 1.5 cm
Pyrite "ball" : 1.5 cm
Photo: Richard Jackson
 Viewed:  34315 Time(s)

sh3445c1.jpg


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Joaquin Montoro




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PostPosted: Dec 02, 2010 13:45    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

My contribution...


PICT2514.JPG
 Description:
Chlorargyrite.- Princess Mine, Leadville, Lake Co. Colorado (USA) 9x5x4 cm. 572 grams. Historic piece of pure "hornsilver" from the famous mining district of Leadville.
 Viewed:  34282 Time(s)

PICT2514.JPG



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Joaquin Montoro




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PostPosted: Dec 02, 2010 15:07    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

Some more...


PICT3740.JPG
 Description:
Chlorargyrite (var. Bromian Chlorargyrite).- Humboldt-Pocahontas Mine, Silvercliff, Custer Co. Colorado (USA) 7x4x4 cm. 326 grams.
 Viewed:  34251 Time(s)

PICT3740.JPG



PICT3594.JPG
 Description:
Chlorargyrite.- Matchless Mine, Leadville, Lake Co. Colorado (USA) 8x5x4 cm. 446 grams of solid "hornsilver".
 Viewed:  34253 Time(s)

PICT3594.JPG



PICT2251.JPG
 Description:
Bromargyrite (green silver).- Little Galesburg Mine, Leadville, Lake Co. Colorado (USA) 7x4x2 cm. 195 grams.
 Viewed:  34274 Time(s)

PICT2251.JPG



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PostPosted: Dec 02, 2010 21:45    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

Former Collection of Geary Murdock. I call this the Buffalo.


DSCN0430.JPG
 Description:
Gold
Breckenridge, Summit Co., CO.
4.2cm x 2.5cm
 Viewed:  34225 Time(s)

DSCN0430.JPG


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PostPosted: Dec 02, 2010 21:48    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

Former collection of Anne Frazier. Mined late 1800's.


DSCN0433.JPG
 Description:
Silver
Smuggler Mine,
Aspen, CO.
2.8cm x 5.1cm
 Viewed:  34212 Time(s)

DSCN0433.JPG


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PostPosted: Dec 02, 2010 21:54    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

Ok one more Rhodo.


DSCN0436.JPG
 Description:
Rhodochrosite w/ Tetrahedrite
Millennium Pocket
Fluorite Raise
Sweet Home Mine
Alma, CO.
5.5cm x 3.8cm
 Viewed:  34225 Time(s)

DSCN0436.JPG


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Joaquin Montoro




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PostPosted: Dec 03, 2010 02:28    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

Another piece...


PICT1999.JPG
 Mineral: Covellite
 Locality:
Summitville Mine, Summitville District, Rio Grande County, Colorado, USA
 Dimensions: 4 x 7 x 10 cm
 Description:
 Viewed:  34194 Time(s)

PICT1999.JPG



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Jesse Fisher




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PostPosted: Dec 03, 2010 10:10    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

A couple of pegmatite minerals:


T171.jpg
 Description:
Topaz (5.5 cm tall), Spruce Grove, Tarryall Mountains, Park County, CO.
 Viewed:  34138 Time(s)

T171.jpg



F035.jpg
 Description:
Microcline (Amazonite) with Smoky Quartz, Lake George, Park County, CO. Microcline shows "striped" white overgrowth (likely albite) of selected faces. 4x4x3 cm overall size.
 Viewed:  34165 Time(s)

F035.jpg


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PostPosted: Dec 03, 2010 10:37    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

A few more from Colorado.


0703 Huebnerite.jpg
 Description:
Hubnerite - Gladstone, San Juan County, Colorado 6.9 cm
 Viewed:  34105 Time(s)

0703 Huebnerite.jpg



1060 Cerussite.jpg
 Description:
Cerussite - Black Cloud Mine, Leadville, Colorado 6.1 cm
 Viewed:  34142 Time(s)

1060 Cerussite.jpg



0851 Ankerite.jpg
 Description:
Ankerite - Empire Mine, Gilman, Eagle Co., Colorado 9.6 cm
 Viewed:  34153 Time(s)

0851 Ankerite.jpg



1015 Goethite ps. siderite.jpg
 Description:
Goethite ps. siderite - Sentinel Rock, El Paso Co., Colorado 5.6 cm
 Viewed:  34138 Time(s)

1015 Goethite ps. siderite.jpg



1096 Sphalerite.jpg
 Description:
Sphalerite - Black Cloud Mine, Leadville, Colorado 8.2 cm
 Viewed:  34153 Time(s)

1096 Sphalerite.jpg



0647 Milky Quartz.jpg
 Description:
Milky quartz - Ohio Mine, Ouray, Colorado 7.1 cm
 Viewed:  34188 Time(s)

0647 Milky Quartz.jpg


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am mizunaka




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PostPosted: Dec 04, 2010 07:01    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

A few from Colorado.


CoBarite.jpg
 Description:
Baryte
Sherman Mine, Leadville District, Lake Co., Colorado
Specimen size 14.4 x 5.5 cm.
 Viewed:  34024 Time(s)

CoBarite.jpg



IdaradoQtz1.jpg
 Description:
Quartz with Sphalerite and Minor Epidote
Idarado Mine, Telluride, Ouray District, San Miguel Co., Colorado
Specimen size 7 x 6.5 cm.
 Viewed:  34015 Time(s)

IdaradoQtz1.jpg



CoRhodo2.jpg
 Description:
Rhodochrosite
Cash Flow Pocket, Sweet Home Mine, Alma District, Park Co., Colorado
Specimen size 6 x 4.7 cm.
 Viewed:  34009 Time(s)

CoRhodo2.jpg



CORhodo.jpg
 Description:
Rhodochrosite with Fluorite
Murphy's Pocket, Sweet Home Mine, Alma District, Park Co., Colorado
Specimen size 5 x 6.5 cm.
 Viewed:  34070 Time(s)

CORhodo.jpg


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PostPosted: Dec 04, 2010 08:16    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

A pair of ugly but interesting and rich ore...


PICT3280.JPG
 Description:
Argentiferous Galena.- Monte Carlo Mine, Creede, Colorado (USA) 9x5x4 cm.
 Viewed:  34016 Time(s)

PICT3280.JPG



PICT3805.JPG
 Description:
Chlorargyrite (var. Embolite) Little Galesburg Mine, Leadville, Lake Co. Colorado (USA) 7x5x3 cm.
 Viewed:  34012 Time(s)

PICT3805.JPG



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PostPosted: Dec 04, 2010 10:27    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

Hello Everyone,

Here is my one and only Colorado entry.

jimp



Zunyite 01d.JPG
 Description:
Extremely small crystal of Zunyite from the type locality, at the Zuni Mine, Anvil Mountain, Silverton, Silverton District, San Juan County, Colorado. Field of view about 3/8" (0.95cm)
 Viewed:  33963 Time(s)

Zunyite 01d.JPG


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PostPosted: Dec 09, 2010 05:22    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

A neat little pyrite from Colorado.


Climax.jpg
 Description:
Pyrite with Fluorite
Climax Mine, Climax District, Lake Co., Colorado
Specimen size 2 x 1.9 x 2.3 cm.
 Viewed:  33621 Time(s)

Climax.jpg


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Joaquin Montoro




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PostPosted: Dec 09, 2010 06:03    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

One more...


PICT1925.JPG
 Description:
Chlorargyrite.- Humboldt Pocahontas Mine, near Silvercliff, Custer Co. Colorado (USA) 11x7x4 cm. 930 grams of pure "hornsilver".
 Viewed:  33603 Time(s)

PICT1925.JPG



PICT1926.JPG
 Description:
 Viewed:  33609 Time(s)

PICT1926.JPG



PICT1928.JPG
 Description:
 Viewed:  33583 Time(s)

PICT1928.JPG



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PostPosted: Dec 18, 2010 06:40    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

Another one for Colorado.


BlueBarite.jpg
 Description:
Baryte on Calcite
Stoneham, Weld Co., Colorado
Specimen size 9.6 x 4.9 cm.
 Viewed:  33412 Time(s)

BlueBarite.jpg


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PostPosted: Dec 18, 2010 11:03    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

Here are a few more pieces from Colorado.


SUM2003-176bigcogarnet.jpg
 Description:
Almandine with Magnetite on Chlorite Schist

Sedalia Mine
Sedalia District
Chaffee County, Colorado
United States of America

23.0 x 12.0 cm overall
12.0 cm Garnet

This specimen is circa 1910.
 Viewed:  33463 Time(s)

SUM2003-176bigcogarnet.jpg



GW000955.JPG
 Description:
Chalcopyrite with Sphalerite

Commodore Mine
Creede District
Creede
Mineral County, Colorado
United States of America

4.5 x 7.0 cm overall
2.5 cm Chalcopyrite

These were produced about 5 or 6 years ago.
 Viewed:  33411 Time(s)

GW000955.JPG


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Joaquin Montoro




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PostPosted: Dec 22, 2010 15:13    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

A new silver ore...


PICT3975.JPG
 Description:
Bromian Chlorargyrite.- Bull Domingo Mine, Silver Cliff, Custer Co. Colorado (USA) 6x6x3 cm.
 Viewed:  33333 Time(s)

PICT3975.JPG



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vic rzonca




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PostPosted: Dec 23, 2010 12:03    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

Image 3975 - Joaquin, this might be one of those times the chemical formula could be instructive.
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Joaquin Montoro




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PostPosted: Dec 23, 2010 15:17    Post subject: Re: A mineralogical trip through the states of USA - Colorado  

Yes, probably you're right. In some specimens I've submit time ago I've written the chemical formula too. In this case it would be Ag(Cl,Br)
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