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Mineral Specimens with Pyrite
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4.1 x 3.1 x 2.4 cm. Heavily striated, beautifully formed cubes of lustrous pyrite, are additionally blessed with small, but perfect, incipient octahedral faces at the corners. The largest modified cube is 2.5 cm tall. Ex. Dr. Eugene Meieran Collection.
8.4 x 6.5 x 5.6 cm. This is a cluster of aesthetic, stacked, brassy, lustrous crystals of cubes modified by pyritohedrons. The crystals reach 3 cm across individual faces. This is a choice American pyrite specimen. Ex. Richard Hauck Collection.
4.5 x 3.8 x 3.8 cm. This locality has arguably produced the world’s finest octahedral pyrite. This near floater is no exception. It is doubly terminated, equant, splendent, and exhibits great form. Ex. Richard Hauck Collection.
3.9 x 3.3 x 2.2 cm. From one of America’s great copper mines, this specimen features a quartz matrix of colorless quartz crystals, to 1.0 cm in length, which host two equant, splendent, octahedral pyrite crystals, to 1.5 cm across. This is an excellent example of what used to be, from Butte. Ex. Richard Hauck Collection.
10.7 x 7.8 x 4.2 cm. This is a large cluster of intergrown, splendent, brassy crystals of pyrite, to 4.5 cm across. The back side is made up of sparkling pyrite crystals averaging .5 cm across. Only at one end on the back side is the specimen contacted - it is absolutely complete everywhere else and remarkably pristine. Ex. Francis and Patricia Benjamin Collection.
A well-formed euhedral crystal of lazurite (lapis lazuli) - not to be confused with lazulite, which just to confuse everyone SOUNDS more like "lapis lazuli" but is a completely different mineral (one of which, just for fun, is in this auction). Good undamaged crystals showing this many faces up off the matrix are not easy to find at all! Fine trim job - the crystal is centered nicely on the marble matrix. Obviously, this region is not exactly conducive to specimen mining right now and these have really dried up on teh market over the last few years...and this is a NICE minniature! 5.2 x 4.0 x 3.7 cm
A dramatic and showy specimen of very highly lustrous brassy pyritohedrons to 2.2 cm sprinkled with small sphalerite crystals from Huanzala, Peru. This beautiful piece is undamaged and was photographed with two different lighting systems to show the intense lustre. 8.7 x 8.3 x 4.9 cm
3.7 x 2.8 x 2.7 cm. How often does one find Wire Gold specimens, let alone on Pyrite matrix? This exceptionally rare and attractive association specimen is from the Brooklyn mine, which is just a few miles northwest of Silverton, in the San Juan Mountains of Colorado. The piece features several small but somewhat thick "wires" of bright Gold along with micro crystalline Gold on Pyrite matrix. To find Gold on Pyrite is rather uncommon in the mineral world, and specimens from this mine are seldom available. This piece came from the well-known Colorado collection of Richard A. Kosnar, and his label states that the piece was collected in May of 1980 by a miner named Ed Melka.
6.5 x 5.3 x 5.3 cm. A superb, large, textbook pyrite pyritohedron from the famous iron mines of Elba Island. This striking crystal has mirror-bright, brass-yellow lustre and is accented with hematite. Complete all-around and nearly pristine. Classic and outstanding, old-time material from this ancient locale. Ex. Gene Meieran Collection.
7.3 x 5.9 x 3.0 cm. A very aesthetic combination specimen from the famous Butte District. A cluster of sharp, brassy, mirror-bright pyrite crystals are superbly placed at the top of a plate of milky quartz crystals. Some of the pyrite crystal faces are preferentially striated, adding much character. The large quartz crystal is 2.5 cm. The pyrites are pristine. This is outstanding, old-time combination material from this historic district. Ex. Robert Lambert and Richard Hauck Collections.
3.5 x 3.0 x 3.0 cm. A superb, floater pyrite crystal with mirror-bright, brass-yellow lustre and beautiful striations from the well-known Black Cloud Mine, near Leadville. Complete-all-around with only very minor contacting. A classic, outstanding, textbook pyrite from this noted Colorado locale. Ex. Gene Meieran Collection.
A beautiful, showy and pristine specimen of super-brilliant brassy and striated pyritohedrons with sphalerite crystal clusters scattered on the pyrite faces from the famous and now-closed Gilman District of Colorado. 5.3 x 3.4 x 2.6 cm
Two mirror-bright brassy pyrite cubes aesthetically intergrown from the classic Spanish locality. A couple of super-trivial edge and corner dings are barely noticeable. Old dealer stock of Dr. Gary Hansen and not shown since the early 1980s! 5.8 x 3.8 x 3.8 cm
6.6 x 5.6 x 4.3 cm. Starkly isolated, discrete, modified cubes of glassy and gemmy, colorless crystals of fluorite, to 1.7 cm, are emplaced on a beautifully contrasting, brassy yellow druse of pyrite. Brown sphalerite crystals with gemmy highlights sit on the periphery of the specimen. The fluorite crystals are exceptionally well formed and the color and texture contrast is amazing. Small crystals, but big impact in this specimen.
14.3 x 9.6 x 8.3 cm. This is a major example of the species from a small find that few people are aware of, I have found. I am told it was a small pocket in the mid-1980s, and I have seen only a handful turn up as old collections recycle. These are superior to other Mexican jamesonite specimens, and most worldwide jamesonite for that matter as well, for their robust crystals and bright metallic lustre. In fact, I would venture to say these are the world's best jamesonites, for my own taste. This piece has a rich smothering of splendent, metallic-gray crystals of jamesonite to 4.0 cm across in on druse of brassy yellow pyrite. There is also a gray rhombohedron of calcite perched on top, measuring 3 cm across. This specimen was on loaned exhibit in the University of Arizona Museum for over a decade until my purchase of this collection in 2008. Ex. Dr. Miguel Romero Collection.
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Rob Lavinsky, rob@irocks.com
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share specimen![Pyrite from Zacatecas, Mexico [db_pics/mdpics/MD-262445a.jpg]](db_pics/mdpics/MD-262445a.jpg)
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![Pyrite from Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru [db_pics/mdpics/MD-262447b.jpg]](db_pics/mdpics/MD-262447b.jpg)
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![Pyrite, Quartz from Butte, Butte District, Silver Bow Co., Montana, USA [db_pics/mdpics/MD-264127b.jpg]](db_pics/mdpics/MD-264127b.jpg)
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