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GneissWare
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Posted: Dec 22, 2012 22:04 Post subject: Re: Bob's collection |
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This Huanggangliang piece is on a lustrous black matrix I haven't yet identified...
Description: |
Fluorite with Quartz Huanggangliang Iron Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia A.R., China
79 x 61 x 56 mm
A large, lustrous, clear Fluorite, measuring 39 x 29 x 29 mm, is perched on a nest of lustrous, pale greenish, sceptered Quartz crystals to 19 mm long, all on a matrix of lustrous black, blocky crystals of Magnetite(?). The reverse side has negative faces from now missing Fluorites. No damage. |
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![RG1242a.jpg](files/rg1242a_974.jpg)
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Description: |
Fluorite with Quartz Huanggangliang Iron Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia A.R., China
79 x 61 x 56 mm
A large, lustrous, clear Fluorite, measuring 39 x 29 x 29 mm, is perched on a nest of lustrous, pale greenish, sceptered Quartz crystals to 19 mm long, all on a matrix of lustrous black, blocky crystals of Magnetite(?). The reverse side has negative faces from now missing Fluorites. No damage. |
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Chris Foltz
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Posted: Dec 22, 2012 22:12 Post subject: Re: Bob's rocks |
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speechless...
_________________ stone-cutter |
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Jordi Fabre
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Posted: Dec 23, 2012 04:59 Post subject: Re: Bob's collection |
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GneissWare wrote: | This Huanggangliang piece is on a lustrous black matrix I haven't yet identified... |
Yes, as you suggest in the caption, is Magnetite.
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Michael Shaw
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Posted: Dec 23, 2012 12:58 Post subject: Re: Bob's rocks |
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Nice update. Glad to see more of your collection.
Michael
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GneissWare
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Posted: Dec 23, 2012 15:19 Post subject: Re: Bob's rocks |
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Thanks!
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Enrique Llorens
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Posted: Dec 24, 2012 05:37 Post subject: Re: Bob's rocks |
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Good selection and aesthetics.
A greeting. Enrique.
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GneissWare
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Posted: Dec 26, 2012 01:34 Post subject: Re: Bob's rocks |
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This old Colorado piece was just finished having some air abrasion done to clean it up a bit. You can compare the after photo with before photo to see the differences.
Description: |
Microcline (v. Amazonite) -- cleaned Lake George area, Park County, Colorado, USA
130 x 124 x 104 mm
Classic, old-time Colorado Amazonite with sharp, light greenish-blue, blocky crystals of Microcline, on a matrix of white Albite (v. Cleavlandite). The Amazonites are well formed and fully terminated, several of which are well-developed twins. One crystal has a "slot" where it once enclosed a blade of what was likely Cleavlandite. This is an old AE Foote specimen, and was later sold by Filer's (Redlands, CA) and the Bradleys (Los Angeles). Formerly in the Don Boydston and Joel D. Cohen collections. It is complete on all sides, unrepaired and has no damage. |
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![JC-22c2.jpg](files/jc_22c2_147.jpg)
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Description: |
Microcline (v. Amazonite) -- cleaned Lake George area, Park County, Colorado, USA
130 x 124 x 104 mm
Classic, old-time Colorado Amazonite with sharp, light greenish-blue, blocky crystals of Microcline, on a matrix of white Albite (v. Cleavlandite). The Amazonites are well formed and fully terminated, several of which are well-developed twins. One crystal has a "slot" where it once enclosed a blade of what was likely Cleavlandite. This is an old AE Foote specimen, and was later sold by Filer's (Redlands, CA) and the Bradleys (Los Angeles). Formerly in the Don Boydston and Joel D. Cohen collections. It is complete on all sides, unrepaired and has no damage. |
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26082 Time(s) |
![JC-22a1.jpg](files/jc_22a1_152.jpg)
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Description: |
Microcline (v. Amazonite) -- before cleaning Lake George area, Park County, Colorado, USA
130 x 124 x 104 mm
Classic, old-time Colorado Amazonite with sharp, light greenish-blue, blocky crystals of Microcline, on a matrix of white Albite (v. Cleavlandite). The Amazonites are well formed and fully terminated, several of which are well-developed twins. One crystal has a "slot" where it once enclosed a blade of what was likely Cleavlandite. This is an old AE Foote specimen, and was later sold by Filer's (Redlands, CA) and the Bradleys (Los Angeles). Formerly in the Don Boydston and Joel D. Cohen collections. It is complete on all sides, unrepaired and has no damage. |
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![JC-22a0a.jpg](files/jc_22a0a_126.jpg)
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GneissWare
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Posted: Feb 18, 2013 22:49 Post subject: Re: Bob's rocks |
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Carles -- These are for you as I know you like Xuebaoding
Description: |
Scheelite on Muscovite Mt. Xuebaoding, Pingwu County, Mianyang Prefecture, Sichuan Province, China 101 x 68 x 40 mm
Fiery-orange Scheelite measuring 55 x 43 mm is perched a sculptural matrix of Muscovite, accented by small gemmy Qyartz crystals. Several nice rosettes of Muscovite are perched atop the Scheelite. Absolutely pristine. |
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![IMG_5387a.jpg](files/img_5387a_150.jpg)
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Beryl on Albite with Quartz and Cassiterite Mt. Xuebaoding, Pingwu County, Mianyang Prefecture, Sichuan Province, China 70 x 60 x 47 mm
A large lustrous pale-blue Beryl measuring 51 x 40 x 19 mm is perched atop a bed on off-white, lustrous Albites to 16 mm accented by sprays of Muscovite and sharp, clear Quartz points. A second Beryl, partly included by lustrous black rosettes of Cassiterite provide a nice accent. Absolutely pristine. |
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![IMG_5384.jpg](files/img_5384_177.jpg)
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Carles Millan
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Posted: Feb 19, 2013 04:24 Post subject: Re: Bob's rocks |
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GneissWare wrote: | Carles -- These are for you as I know you like Xuebaoding |
You're right! Very fine specimens and excellent photography. I do like them.
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Tobi
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Posted: Feb 19, 2013 14:37 Post subject: Re: Bob's rocks |
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Indeed two wonderful Xuebaoding specimens, really great ones!
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GneissWare
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Posted: Feb 19, 2013 14:54 Post subject: Re: Bob's rocks |
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Thanks. These just came out of a stash in China, and I snatched them up as soon as I got wind of them. There is something about Xuebaoding that I really like, and just can't hardly pass up on a specimen from there.
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Joseph DOliveira
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Posted: Feb 19, 2013 21:32 Post subject: Re: Bob's rocks |
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All I can say is WOW!!!
_________________ Joseph D'Oliveira
Hanmer, Ontario
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GneissWare
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Posted: Mar 02, 2013 02:21 Post subject: Re: Bob's collection |
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Back in the early 1990s I bought much of the material produced by my friend Graham Sutton at the Veta Grande claim outside Quartzsite Arizona. I kept this piece because the geologist in me liked it. It clearly shows how Fadens are formed.
This Quartz matrix coated with micaceous tan Pyrophyllite hosts many lustrous, mirror-bright, black blades of Hematite to 25 mm across and flattened, clear Quartz points to 37 mm long. What makes this specimen interesting are the parallel Faden Quartz to 17 mm long, which clearly bridge a crack in the matrix, clearly illustrating how Fadens form. These Fadens are accented by small lustrous Hematite blades. Collected in 12/1990 by Graham Sutton. No damage.
Description: |
Hematite with Quartz Fadens Veta Grande claim, Dome Rock Mts., near Quartzsite, La Paz County, Arizona, USA 181 x 161 x 84 mm |
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![RG0421a.jpg](files/rg0421a_142.jpg)
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Description: |
Hematite with Quartz Fadens Veta Grande claim, Dome Rock Mts., near Quartzsite, La Paz County, Arizona, USA 181 x 161 x 84 mm |
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25028 Time(s) |
![RG0421b.jpg](files/rg0421b_145.jpg)
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Description: |
Hematite with Quartz Fadens Veta Grande claim, Dome Rock Mts., near Quartzsite, La Paz County, Arizona, USA 181 x 161 x 84 mm |
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25063 Time(s) |
![RG0421c.jpg](files/rg0421c_420.jpg)
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Description: |
Hematite with Quartz Fadens Veta Grande claim, Dome Rock Mts., near Quartzsite, La Paz County, Arizona, USA 181 x 161 x 84 mm |
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25049 Time(s) |
![RG0421f.jpg](files/rg0421f_848.jpg)
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am mizunaka
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Posted: Mar 02, 2013 03:22 Post subject: Re: Bob's rocks |
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Very nice specimen. I really like the quartz bridges.
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Pierre Joubert
Joined: 09 Mar 2012
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Posted: Mar 02, 2013 03:31 Post subject: Re: Bob's rocks |
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Very interesting Bob. Good, visible example of how Fadens are formed.
_________________ Pierre Joubert
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GneissWare
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Posted: May 11, 2013 22:47 Post subject: Bob's collection |
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Minerals from the Hecla Rosebud Mine, Rosebud District, Sulphur, Pershing County, Nevada.
Description: |
Baryte with Pyrrhotite Hecla Rosebud Mine, Rosebud District, Sulphur, Pershing County, Nevada, USA 7.0 x 6.0 x 3.5 cm |
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24374 Time(s) |
![RG0196.jpg](files/rg0196_105.jpg)
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Description: |
Miargyrite Hecla Rosebud Mine, Rosebud District, Sulphur, Pershing County, Nevada, USA 10.0 x 9.1 x 4.0 cm |
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24412 Time(s) |
![RG0202.jpg](files/rg0202_134.jpg)
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Baryte Hecla Rosebud Mine, Rosebud District, Sulphur, Pershing County, Nevada, USA 12.4 x 6.3 x 5.0 cm |
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24385 Time(s) |
![GW000128.JPG](files/gw000128_407.jpg)
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Don Lum
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Posted: May 11, 2013 23:04 Post subject: Re: Bob's collection |
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GneissWare wrote: | Back in the early 1990s I bought much of the material produced by my friend Graham Sutton at the Veta Grande claim outside Quartzsite Arizona. I kept this piece because the geologist in me liked it. It clearly shows how Fadens are formed.
This Quartz matrix coated with micaceous tan Pyrophyllite hosts many lustrous, mirror-bright, black blades of Hematite to 25 mm across and flattened, clear Quartz points to 37 mm long. What makes this specimen interesting are the parallel Faden Quartz to 17 mm long, which clearly bridge a crack in the matrix, clearly illustrating how Fadens form. These Fadens are accented by small lustrous Hematite blades. Collected in 12/1990 by Graham Sutton. No damage. |
Bob,
Thank you for the clear pictures and explanation.
Don
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GneissWare
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Posted: May 11, 2013 23:07 Post subject: Re: Bob's rocks |
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Minerals from several Nevada localities.
Description: |
Azurite with Malachite and Chrysocolla Robinson Open Pit, Robinson District, Ruth, White Pine County, Nevada, USA 4.2 x 2.8 x 1.4 cm |
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![GW000441.JPG](files/gw000441_734.jpg)
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Stibnite on Baryte Deep Post Mine, Lynn District, North of Carlin, Eureka County, Nevada, USA 7.0 x 5.7 x 4.5 cm |
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24333 Time(s) |
![GW000866.JPG](files/gw000866_140.jpg)
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Baryte SSX (South Saval Extension) Mine, Elko County, Nevada, USA 9.5 x 9.1 x 7.3 cm |
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24399 Time(s) |
![GW000922.JPG](files/gw000922_146.jpg)
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Andradite Osgood Mountains, Humboldt County, Nevada, USA 7.3 x 5.3 x 4.0 cm |
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24328 Time(s) |
![RG1066.jpg](files/rg1066_233.jpg)
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Epidote with Quartz Julie (Lola) claim, Pamlico District, near Hawthorne, Mineral County, Nevada, USA 8.1 x 6.7 x 4.0 cm |
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24335 Time(s) |
![RG1006.jpg](files/rg1006_454.jpg)
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GneissWare
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Posted: May 11, 2013 23:13 Post subject: Re: Bob's rocks |
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Here are a few from the Manhattan District, Nye County, Nevada
Description: |
Stibnite Manhattan District, Nye County, Nevada, USA 13.3 x 9.3 x 5.8 cm |
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![KR001.jpg](files/kr001_140.jpg)
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Description: |
Stibnite Manhattan District, Nye County, Nevada, USA 7.1 x 6.5 x 3.7 cm |
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24302 Time(s) |
![GW000871.JPG](files/gw000871_135.jpg)
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GneissWare
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Posted: May 11, 2013 23:19 Post subject: Re: Bob's rocks |
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A few more miscellaneous Nevada specimens.
Description: |
Baryte with Quartz Murray Mine, Independence Mountains District, Independence Mts., near Elko, Elko County, Nevada, USA 10.5 x 4.0 x 2.2 cm Zone 4, Level 175, Drift 13; Sugarbowl Pocket |
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24290 Time(s) |
![GW000132.JPG](files/gw000132_151.jpg)
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Description: |
Baryte on Orpiment Twin Creeks Mine, Potosi District, Humboldt County, Nevada, USA 10.5 x 8.5 x 8.0 cm |
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24311 Time(s) |
![RG0925.jpg](files/rg0925_972.jpg)
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