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09edd155j - Chalcocite pseudo. after Covellite - $ 7500 SOLD Butte, Silverbow County, Montana, USA small cabinet, 8.0 x 6.3 x 3.6 cm ex. August Pohndorf ex. Dr. Edward David ex. Gerald Herfurth
A shockingly scupltural cluster of fine crystals of LARGE covellites, that have been completely replaced by lustrous, jet black chalcocite. This is a MAJOR Butte specimen of some importance, just for the size alone. However, given the good aesthetics and nearly pristine condition, it is also a fine display quality specimen by any standard aside from the historical significance of the piece for the locale. It was in the Gerald Herfurth collection for 40 years, previously to Ed's purchase of it. Herfurth acquired it in 1958 from Pohndorf, a noted Colorado dealer and collector of the time. Verbally, it was said that this was found in 1883 and this was noted on Herfurth's card label (back side of the side shown). We know it is old, certainly, but if it really is THAT OLD, this is even more a piece of import.
D06-240 - Covellite and Pyrite - $ 1800 SOLD Leonard Mine, Butte, Silverbow County, Montana, USA miniature, 5.7 x 4.5 x 2.8 cm
This species reaches its zenith from this locality. Tabular, iridescent, purplish-blue, crystals of covellite, to 2.5 cm across, are associated with bright, golden, pyrite crystals. There is minor chipping on the right side of the covellite crystals, but this is trivial in context and it is in better shape than most others I have seen, plus has superb 3-dimensionality and displays better than the usual lumpy specimens we see. OLD CLASSIC,, now nearly impossible to get, especially in competition quality specimens!
DENV08-01 - Covellite - $ 1800 Summitville, Rio Grande County, Colorado, USA small cabinet, 7.3 x 5.9 x 4.1 cm
A very rich, and surprisingly colorful specimen of covellite from Colorado. Along with Butte in Montana, and perhaps the ancient locality in Sardinia, these are the world's great covellite lcoales. Good specimens in this size range, though, are few and far between. Colorado covellites have a reputation as being the ugly duckling compared to Butte material but not this one, with its incredible flashy multicolored iridescence. The piece has crystals to over an inch, and very good 3-dimensional relief (also unusual for the locale). Although, as with most covellites from all of these 3 major localities, there is some damage here and there, but this is certainly acceptable in the overall context for the size and quality. I regard this as one of the better Colorado examples I have seen, in this size range.
MD-133919 - Covellite - - Archived Leonard Mine, Butte, Butte District, Silver Bow Co., Montana, USA large cabinet, 16.4 x 9.4 x 7.6 cm.
16.4 x 9.4 x 7.6 cm. Some old paperwork that came with this HUGE, RICH, 3-pound specimen of covellite from Butte shows it to have been mined at the Leonard Mine in 1942. You can see all sorts of color-tones in this dense covellite specimen, including the prized blue, along with gold and purple hues. Massive, but beautiful, solid covellite here!
MD-146986 - Covellite - - Archived East Colusa Mine, Butte, Butte District, Silver Bow Co., Montana, USA small cabinet, 6.0 x 4.5 x 3.0 cm.
6.0 x 4.5 x 3.0 cm. An old-time, showy and rich Butte specimen of iridescent, dark lavender covellite plates in a nifty boxwork form on matrix. Covellites of this quality are a signature Butte species and this is a good, with fine iridescence. Ex. John Ydren Collection.
MD-159484 - Covellite - - Archived East Colusa Mine, Butte, Butte District, Silver Bow Co., Montana, USA small cabinet, 6.2 x 5.3 x 3.5 cm.
6.2 x 5.3 x 3.5 cm. A CLASSIC and EXCELLENT Butte covellite specimen. This wing-like or V-shaped piece is comprised entirely of highly iridescent covellite blades. The colors and iridescence are stunning on this Holy Grail for Butte species. This is an outstanding old-timer, accompanied by an old label, which lists the mine, uncommon in itself. Ex. George Elling Collection.
MD-176465 - Covellite - - Archived Butte, Butte District, Silver Bow Co., Montana, USA miniature, 3.2 cm.
3.2 cm. This covellite specimen has excellent brassy lustre and iridescence on the echelon crystals. Ex. George Elling Collection.
MD-181390 - Covellite, Chalcopyrite - - Archived Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA large cabinet, 16.6 x 13.0 x 3.0 cm.
16.6 x 13.0 x 3.0 cm. This colorful ore sample highlights the bronze chalcopyrite vein along with the iridescent purplish-blue of Covellite. Ex. Harold Urish Collection.
MD-181407 - Covellite, Pyrite - - Archived Leonard Mine, Butte, Butte District, Silver Bow Co., Montana, USA small cabinet, 5.7 x 4.5 x 2.8 cm.
5.7 x 4.5 x 2.8 cm. Tabular, iridescent, purplish-blue, crystals of covellite to 2.5 cm across are associated with bright, golden, pyrite crystals.
MD-181408 - Covellite, Pyrite - - Archived Calabona Mine, Alghero, Sassari Province, Sardinia, Italy small cabinet, 5.8 x 4.7 x 4.3 cm.
5.8 x 4.7 x 4.3 cm. These were mined prior to 1850. This beautiful and historic specimen is composed of roseate crystals of radiating covellite that are partially coated by a druse of secondary pyrite. The iridescent, neon blue color along with the lustrous pyrite and rosette form makes this a superb specimen.
MD-181409 - Covellite - - Archived Tilva Mika deposit, Bor Mine, Bor, Bor-Majdanpek District, Serbia small cabinet, 5.7 x 3.7 x 3.2 cm.
5.7 x 3.7 x 3.2 cm. The iridescence and luster, along with the neon blue color, give this matrix specimen of foliated covellite crystals an other-worldly appearance. The largest crystal measures .6 cm across.
MD-181677 - Covellite - - Archived Calabona Mine, Alghero, Sassari Province, Sardinia, Italy miniature, 3.9 x 1.8 x 0.7 cm.
3.9 x 1.8 x 0.7 cm. Superb, iridescent blue, gold and brass-colored covellite plates comprise both sides of this sculptural and very attractive old-time specimen from the famous Calabona Mine on Sardinia. Classic material from this old copper mine and from the Frankie Dee Hosea Collection.
MD-182775 - Chalcocite, Covellite - - Archived Butte, Butte District, Silver Bow Co., Montana, USA small cabinet, 7.1 x 5.4 x 3.2 cm.
7.1 x 5.4 x 3.2 cm. Butte covellite is an American classic. Here, the covellite has been replaced (pseudomorphed) by sparkly, black chalcocite. This very special old-timer was in the collection of Gene Meieran, in his sulfide suite. This was likely mined in the 1950s-1960s.
MD-195444 - Covellite - - Archived Butte, Butte District, Silver Bow Co., Montana, USA thumbnail, 2.4 x 2.2 x 2.2 cm.
2.4 x 2.2 x 2.2 cm. A classic thumbnail cluster of shimmering, iridescent metallic, pink/purple covellite blades from an unknown mine in the famous Butte District. This is a very fine old-timer, with superb color and lustre. The large blade is nearly pristine, with only micro edge-wear. Ex. George Elling Collection.
MD-197407 - Covellite - - Archived Galactic Open Pit, Summitville, Summitville District (Summit District), Rio Grande Co., Colorado, USA small cabinet, 7.3 x 5.9 x 4.1 cm.
7.3 x 5.9 x 4.1 cm. A very rich and colorful specimen of covellite from Colorado. Along with Butte in Montana, and perhaps the ancient locality in Sardinia, these are the world's great covellite locales. The piece has crystals to over an inch, and very good 3-dimensional relief.
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