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9.3 x 7.5 x 5.6 cm. A classic Rico Pyrite showing great pyritohedral form. These specimens are cherished by Colorado collectors and the Rico District did not produce a great amount of these specimens. For some time, these specimens were labeled as being Pyrite coated by "Bravoite". This is completely incorrect, as analysis done by Dr. Pete Modreski at the USGS in Denver, showed that the thin grey coating or "film" on these Pyrite crystals is actually a micro layer of Molybdenite. Please refer to the post on the following link: http://www.mineral-forum.com/message-board/viewtopic.php?t=360. Ex. Brian Kosnar Collection.
A SUPERB and DRAMATIC LARGE CABINET specimen of highly striated and lustrous golden pyrite cubes to 7.0 cm from the Huanzala Mine in Peru. This is an old-time piece of the quality seldom seen today. VERY CHOICE! 20.5 x 13.0 x 6.3 cm
2.3 x 1.8 x 1.7 cm. An old-time, classic and fine cluster of mirror-bright, brass-yellow, pyritohedrons from the Butte District of Montana. The large pyritohedron dominates this excellent thumbnail. Very nearly pristine. Ex. Jaime Bird Collection.
1.7 x 1.4 x 1.4 cm. A textbook, beautiful, complete-all-around pyrite octahedron from the Magma Mine and the Jaime Bird Collection. This superb, pristine, floater crystal has mirror-bright, brass-yellow lustre and the striated and stepped-growth faces are fascinating. The two, tiny, pyritohedrons attached to one face are interesting and every rotation gives you a different perspective of the crystal. Classic material.
10.7 x 8.5 x 7.5 cm. A brilliant, glistening, complete-all-around mass of golden pyrite crystals. The largest is 2 cm across. In person, this is a mesmerizing piece in part because of the complex, multifaceted pyrites, so different than most material found here today which has less complex habits. The lustre is almost blindingly bright when strongly lit. The old classic style makes it recognizable. Ex. Harold Urish Collection.
9.9 x 7.8 x 5.0 cm. This find was made a couple of years back in China, and is absolutely unique: glittery, golden pyrite microcrystals on the edges of huge (to 4.8 cm across on this piece) flattened rhombs of pastel-pink manganoan calcite. Some of the specimens had very sparse coverage of pyrite, just a salting, but here, it is richly carpeting the crystal edges and on some of the crystal face. Striking and very pretty material.
20.5 x 12.5 x 3.5 cm. A classic, old-time and very showy large cabinet specimen from the Oppu Mine of Japan. Sparkly, iridescent pyritohedrons are richly concentrated of the both ends of the starkly contrasting, bubbly, botryoidal, pastel-pink rhodochrosite-coated sculptural matrix plate. Rhodochrosite also coats the backside of the crust, but there are very few pyrites there. Excellent, very large, combination material from this historic locality.
3.2 x 3.2 x 3.0 cm. The Huanzala Mine of Peru has arguably produced the world’s finest pyrites and this Jaime Bird miniature is an outstanding example. A mirror-bright, brass-yellow, textbook pyrite octahedron rests on smaller pyrite crystals. The crystal is complete-all-around and has interesting, modified corners. Nearly pristine. Classic Huanzala material. Specimens of this quality came out in the 1970s and 1980s.
1.8 x 1.7 x 0.9 cm. Enargite is a signature mineral species from the Butte District. A tabular, lustrous and striated enargite crystal is nicely set amidst mirror-bright, brass-yellow pyrite crystals on this excellent, old-time, combination thumbnail. Ex. Jaime Bird Collection. Classic material.
4.0 x 3.1 x 2.3 cm. A superb, sharp miniature with exceptional crystals of pyrite (rare for the county) which were replaced by the mineral limonite in perfect symmetry-preservation. These are very uncommon, and highly desired among county collectors. I am told that this is one of the very finest pieces from a small pocket found in the 1980s by mine owner Roland Reed. Ex. William Larson Collection.
3.2 x 3.2 x 2.9 cm. A sharp, textbook pyrite pyritohedron from the ancient iron mines at Rio Marina, Elba Island. The brassy crystal has mirror-bright faces. Complete-all-around, the contact is at the base and is out of sight. A classic and excellent pyrite crystal from this historic locale and the Jaime Bird Collection.
7.2 x 4.3 x 3.8 cm. Beautifully striated, brass-yellow, pyritohedrons to 2.8 cm have this incredible mirror-bright lustre on this fine specimen from the Huanzala Mine of Peru. This piece is highly representative of the species and locale and looks good from either side. This locality is renowned for some of the world’s best pyrite specimens.
8.5 x 8.3 x 7.1 cm. A striking, yellow, fluorite cube very richly covered with highly unusual pyrite spheroids from recent finds at the well-known El Hammam Mine of Morocco. The translucent fluorite has a particularly gemmy corner, similar to purple Elmwood fluorites. Strange, but in a way, very interesting looking. Excellent purple fluorescence. From a small find of 2006.
9.5 x 8.6 x 0.8 cm. These beautiful, lustrous pyrite floater "suns" formed between an ancient bed of shale and clay near Sparta, Illinois. This one is complete-all-around, front and back. The radial appearance of the pyrite is very interesting and the pyrite has a flashy, chatoyant shimmer. I particularly like the amoeboid shape of this one. Highly representative of this unusual occurrence.
3.0 x 3.0 x 2.3 cm. This specimen was collected in very recently (within the last few months - 2009). It hails from one of the most exciting Bolivian localities of the last 10 years. It hosts several attractive, sharp, tabular, metallic, silvery-grey color crystals with great form and sharp faces. The crystals are sitting amongst golden Siderite and sparkling Pyrite matrix. For the quality, these new specimens have created a lot of excitement, so much so that one of the best pieces was featured on the cover of the March/April 2009 Issue of the Mineralogical Record. This specimen is from the same mine and possibly the same exact pocket as the cover specimen.
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share specimen![Pyrite from http://www.mineral-forum.com/message-board/viewtopic.php?t=360. [db_pics/mdpics/MD-245684a.jpg]](db_pics/mdpics/MD-245684a.jpg)
![Pyrite from Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru [db_pics/mdpics/MD-24613a.jpg]](db_pics/mdpics/MD-24613a.jpg)
![Pyrite from Butte, Butte District, Silver Bow Co., Montana, USA [db_pics/mdpics/MD-246459a.jpg]](db_pics/mdpics/MD-246459a.jpg)
![Pyrite from Magma Mine (Magma Superior Mine; Irene claim; Hub claim; Pomeroy; Superior Division; Silver Queen; Monarch claim; Magma Copper Mine; Broken Hill; Apex), Superior, Pioneer District, [db_pics/mdpics/MD-247788a.jpg]](db_pics/mdpics/MD-247788a.jpg)
![Pyrite from Alimon Mine (Animon Mine), Huaron Mining District, San Jose de Huayllay District, Cerro de Pasco, Daniel Alcides Carrión Province, Pasco Department, Peru [db_pics/mdpics/MD-247882a.jpg]](db_pics/mdpics/MD-247882a.jpg)
![Pyrite from Alimon Mine (Animon Mine), Huaron Mining District, San Jose de Huayllay District, Cerro de Pasco, Daniel Alcides Carrión Province, Pasco Department, Peru [db_pics/mdpics/MD-247882b.jpg]](db_pics/mdpics/MD-247882b.jpg)
![Pyrite, Calcite (Var: Manganoan Calcite) from Chenzhong (?), Hunan Province, China [db_pics/mdpics/MD-249188a.jpg]](db_pics/mdpics/MD-249188a.jpg)
![Pyrite, Rhodochrosite from Oppu mine, Nishimeya-mura, Naka-Tsugaru-gun, Aomori Prefecture, Tohoku Region, Honshu Island, Japan [db_pics/mdpics/MD-249261a.jpg]](db_pics/mdpics/MD-249261a.jpg)
![Pyrite, Rhodochrosite from Oppu mine, Nishimeya-mura, Naka-Tsugaru-gun, Aomori Prefecture, Tohoku Region, Honshu Island, Japan [db_pics/mdpics/MD-249261b.jpg]](db_pics/mdpics/MD-249261b.jpg)
![Pyrite from Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru [db_pics/mdpics/MD-249304a.jpg]](db_pics/mdpics/MD-249304a.jpg)
![Enargite, Pyrite from Butte, Butte District, Silver Bow Co., Montana, USA [db_pics/mdpics/MD-249314a.jpg]](db_pics/mdpics/MD-249314a.jpg)
![Limonite, Pyrite from Elizabeth R. Mine, Chief Mountain, Pala District, San Diego Co., California, USA [db_pics/mdpics/MD-249624a.jpg]](db_pics/mdpics/MD-249624a.jpg)
![Pyrite from Rio Marina, Elba Island, Livorno Province, Tuscany, Italy [db_pics/mdpics/MD-250186a.jpg]](db_pics/mdpics/MD-250186a.jpg)
![Pyrite from Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru [db_pics/mdpics/MD-250207a.jpg]](db_pics/mdpics/MD-250207a.jpg)
![Fluorite, Pyrite from El Hammam Mine (El Hamman Mine), Mount Hammam, Meknès, Meknès Prefecture, Meknès-Tafilalet Region, Morocco [db_pics/mdpics/MD-250249a.jpg]](db_pics/mdpics/MD-250249a.jpg)
![Pyrite from Sparta, Randolph Co., Illinois, USA [db_pics/mdpics/MD-250289a.jpg]](db_pics/mdpics/MD-250289a.jpg)
![Bournonite, Siderite, Pyrite from Machacamarca Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosí Department, Bolivia [db_pics/mdpics/MD-250330a.jpg]](db_pics/mdpics/MD-250330a.jpg)