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Mineral Specimens with Pyrite
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8.8 x 7.6 x 4.0 cm. Here is one of the more interesting new finds from about 5 years ago in Bolivia. Typically, Bolivian Pyrite is not found in well-crystallized specimens. This, however, is a very fine specimen. The specimen is virtually undamaged on the display side and is loaded with dozens of trapezohedra modified by octahedra which is a rather uncommon crystal habit for this rather common sulfide. The largest crystal measures 1.1 cm across. All the Pyrite crystals are very bright and shiny.
6.6 x 5.4 x 3.0 cm. This is a fine pyrite specimen from China. The crystals have incredible mirror golden-metallic sheen, with subtle striations. The largest crystal measures 2.8 cm along the edge.
7.9 x 7.4 x 3.9 cm. Rare now, a pairing of pyramidal crystals of golden pyrite with dark magnetite, both in massive form and crystals up to over one centimeter. The mines at this locality go all the way back to the Roman era. Starting in the 1800s, the exploited mineral became the pyrite, used to get the "vetriolo di ferro", very important for the textile industry and then (from 1858) for the sulfuric acid. This specimen is almost solid magnetite and pyrite. Ex. Mullane Collection.
3.6 x 3.5 x 1.9 cm. Alumohydrocalcite is an uncommon hydrated calcium aluminum carbonate. This fine old-time specimen features pink, tufted balls of alumohydrocalcite to 2 mm nicely perched on pyrite and other sulfides on quartz-rich matrix. This classic and historic specimen is from a very uncommon locality – Neurode, Silesia, Poland. Accompanied by an old, faded Ward's label that incorrectly identifies this as pharmacolite. The collection this came out of was a museum stash dating to prior to World War I.
5.0 x 3.6 x 2.9 cm. Luzonite is an uncommon copper, arsenic sulfosalt. This fine, rich, 3-dimensional specimen of nearly solid, reddish-gray, metallic-lustre luzonite crystals to 5 mm is nicely accented by a scattering of pyrite crystals. Luzonite is especially desirable from this now defunct quarry in Taiwan. Very rich, highly representative material of this uncommon species from this extinct locale.
6.4 x 5.0 x 3.6 cm. These octahedral crystals have a golden mirror shine, and such wonderful form. This is essentially a knob that is complete all around, with attachment only on the bottom, so it is displayable from many sides. Ex. Gene Meieran Collection.
15.9 x 10.4 x 6.1 cm. This find was made a couple of years back in China, and is absolutely unique: glittery, golden pyrite on the edges of huge (to over 9 cm across) crystals of calcite. Some of the specimens had very sparse coverage of pyrite, just a salting, but here, it is richly carpeting the crystal edges.
5.5 x 3.7 x 3.5 cm. A fine cluster of lustrous, blocky, brassy, step faced-growth pyrite crystals on a matrix of silicified limestone from the Sweetwater Mine of Missouri’s Viburnum Trend. Unusual and uncommon pyrite, in this form, from the George Feist Collection.
6.5 x 5.9 x 4.9 cm. These perfect cubes on matrix from Spain are amongst the most striking crystals in the mineral kingdom. Non-mineral people usually cannot believe that they form naturally, in fact. This is a large, pristine cube, wonderfully isolated and fully exposed on the matrix. It measures 2.2 cm on edge and has a mirror-golden luster.
15.0 x 9.9 x 8.8 cm. From the pyrite mine at Shangbao, a very unusual specimen of quartz (for Shangbao that is) that looks more like something from Dal’negorsk. This green quartz is included with something that gives it a mintgrey color, but the inclusions have not been identified to my knowledge. A little group of pyrites sits at the edge of this large field of crystals.
6.5 x 4.5 x 3.2 cm. This superb specimen of Chinese pyrite could hold its own with a good Peruvian specimen. Pyrites of this quality from China are rare. It has a superb mirror shine on its crystals (to 1.9 cm).
3.9 x 2.8 x 1.5 cm. This specimen is stunning for the species, with unusually distinct, well-formed crystals to 1.5 cm arrayed in an (also unusual) radial cluster on minimal matrix. Usually these are blocky crystals on massive rock. This fine piece, though, is one of the more display-worthy examples of the species I have seen. The leftmost crystal was loose, wiggling, and then came off in handling so is now repaired (as a lock-fit repair perfectly to its original site). The crystals are textbook-sharp in form, and have translucent golden-colored terminations.
11.6 x 5.0 x 1.9 cm. A beautiful, lustrous, 2-cm pyrite ball enclosed in slate. Very unusual material from an old find here. Ex. Charlie Key.
4.5 x 3.7 x 2.7 cm. A beautifully symmetrical, highly arching, lustrous pyritized Spirifer brachiopod from the Devonian of Sylvania, Ohio. This specimen has excellent bi-lateral symmetry and comes from a quarry west of Toledo. This example is lightly compressed on one side, but remains intact. A fine and highly representative fossil of the species and locale.
14.8 x 11.8 x 7.4 cm. This Chinese find a few years back is really unique: bright golden pyrite decorating the edges of large, densely-intergrown crystals of calcite. No more of this material around - it had all been sold off by last year.
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Rob Lavinsky, rob@irocks.com
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share specimen![Pyrite from Mr. Pickering's mistress' mine, Cerro Ubina, Tolopampa, Antonio Quijarro Province, Potosí Department, Bolivia [db_pics/mdpics/MD-210577a.jpg]](db_pics/mdpics/MD-210577a.jpg)
![Pyrite from Mr. Pickering's mistress' mine, Cerro Ubina, Tolopampa, Antonio Quijarro Province, Potosí Department, Bolivia [db_pics/mdpics/MD-210577b.jpg]](db_pics/mdpics/MD-210577b.jpg)
![Pyrite from Shangbao Pyrite mine, Leiyang Co., Hengyang Prefecture, Hunan Province, China [db_pics/mdpics/MD-210699a.jpg]](db_pics/mdpics/MD-210699a.jpg)
![Pyrite, Magnetite from Brosso Mine, Cálea, Léssolo, Canavese District, Torino Province, Piedmont, Italy [db_pics/mdpics/MD-210739a.jpg]](db_pics/mdpics/MD-210739a.jpg)
![Alumohydrocalcite, Pyrite from Piast Mine, Nowa Ruda, Kłodzko District, Lower Silesia (Dolnośląskie), Poland [db_pics/mdpics/MD-210782a.jpg]](db_pics/mdpics/MD-210782a.jpg)
![Alumohydrocalcite, Pyrite from Piast Mine, Nowa Ruda, Kłodzko District, Lower Silesia (Dolnośląskie), Poland [db_pics/mdpics/MD-210782b.jpg]](db_pics/mdpics/MD-210782b.jpg)
![Alumohydrocalcite, Pyrite from Piast Mine, Nowa Ruda, Kłodzko District, Lower Silesia (Dolnośląskie), Poland [db_pics/mdpics/MD-210782c.jpg]](db_pics/mdpics/MD-210782c.jpg)
![Luzonite, Pyrite from Pen-Shan Ore Body, Chinkuahshih Mine, Jui-Fang Town, Taipei Co., Taiwan Province, Taiwan [db_pics/mdpics/MD-210857a.jpg]](db_pics/mdpics/MD-210857a.jpg)
![Luzonite, Pyrite from Pen-Shan Ore Body, Chinkuahshih Mine, Jui-Fang Town, Taipei Co., Taiwan Province, Taiwan [db_pics/mdpics/MD-210857b.jpg]](db_pics/mdpics/MD-210857b.jpg)
![Pyrite from Butte, Butte District, Silver Bow Co., Montana, USA [db_pics/mdpics/MD-211918a.jpg]](db_pics/mdpics/MD-211918a.jpg)
![Pyrite, Calcite from Chenzhong (?), Hunan Province, China [db_pics/mdpics/MD-212051a.jpg]](db_pics/mdpics/MD-212051a.jpg)
![Pyrite, Calcite from Chenzhong (?), Hunan Province, China [db_pics/mdpics/MD-212051b.jpg]](db_pics/mdpics/MD-212051b.jpg)
![Pyrite from Sweetwater Mine (Milliken Mine; Frank R. Milliken; Blair Creek; Ozark Lead Company Mine; Adair Creek; Logan Creek), Ellington, Viburnum Trend District, Reynolds Co., Missouri, USA [db_pics/mdpics/MD-213109a.jpg]](db_pics/mdpics/MD-213109a.jpg)
![Pyrite from Navajún, La Rioja, Spain [db_pics/mdpics/MD-213151a.jpg]](db_pics/mdpics/MD-213151a.jpg)
![Quartz, Pyrite from Shangbao Pyrite mine, Leiyang Co., Hengyang Prefecture, Hunan Province, China [db_pics/mdpics/MD-213194a.jpg]](db_pics/mdpics/MD-213194a.jpg)
![Pyrite from Shangbao Pyrite mine, Leiyang Co., Hengyang Prefecture, Hunan Province, China [db_pics/mdpics/MD-214678a.jpg]](db_pics/mdpics/MD-214678a.jpg)
![Valentinite, Pyrite from San José Mine, Oruro City, Cercado Province, Oruro Department, Bolivia [db_pics/mdpics/MD-215147a.jpg]](db_pics/mdpics/MD-215147a.jpg)
![Pyrite from Millstream Station, Pilbara Region, Western Australia, Australia [db_pics/mdpics/MD-215591a.jpg]](db_pics/mdpics/MD-215591a.jpg)
![Pyrite from Millstream Station, Pilbara Region, Western Australia, Australia [db_pics/mdpics/MD-215591b.jpg]](db_pics/mdpics/MD-215591b.jpg)
![Pyrite from Sylvania, Lucas Co., Ohio, USA [db_pics/mdpics/MD-216395a.jpg]](db_pics/mdpics/MD-216395a.jpg)
![Pyrite, Calcite from Chenzhong (?), Hunan Province, China [db_pics/mdpics/MD-216533a.jpg]](db_pics/mdpics/MD-216533a.jpg)