|
Mineral Specimens with Pyrite
(click on a page number to go to that page:)
page 21 / 50 - prev - 737 specimens selected - next
3.8 x 2.4 x 1.8 cm. If you can get past the fact that they are "just" pyrites, you have to admit that these perfect cubes on matrix from Spain are amongst the most striking crystals in the mineral world. Non-mineral people usually cannot believe that they form naturally, in fact. Here are two sculpturally intergrown cubes that look like modern art.
5.4 x 3.8 x 3.5 cm. The recent find of rhodochrosite in China caused a lot of excitement. These rhombs, to 1.5 cm, show a nice red glow, despite the natural internal fracturing. Sprinkled with little pyrites here and there.
7.2 x 5.4 x 3.9 cm. Very large, perfectly formed pyrites with great luster such as this are not common from Mexico. Despite minor edge-wear, this is a specimen of pyrite from Mexico. Ex. Stoudt Collection,
13.1 x 9.4 x 0.4 cm. The mechanism of formation of these amazing pyrite "suns" is not well understood. They formed in clay beds near what is now the town of Sparta in Illinois. They look almost like pseudomorphs after something biological, and this has been theorized. This is a very large, totally complete, sparkling golden example of one.
5.3 x 5.0 x 0.9 cm. A really interesting and showy, sliced and polished slab, from a nodule of banded sphalerite and pyrite from a classic German locale - Wiesloch, near Heidelberg. The plumose character of the pyrite and sphalerite is fascinating and the contrasting, white baryte is a very nice accent. Ex. Mullane Collection and accompanied by an Anton Berger label: well-known Austrian mineral dealers from the 1920s-1950s.
13.0 x 9.6 x 7.3 cm. This very large China rhodochrosite specimen has huge crystals to 5.25 cm, perched on contrasting matrix of quartz. The matrix also has pyrites and manganoan calcites speckled about for contrast. This is a large piece, impressive in display, and very colorful.
4.4 x 3.4 x 2.8 cm. A beautiful specimen of bright, sparkly pyrite crystals on flat, bladed crystals of baryte, from Peru. The crystals around the lower periphery are not complete, but the "main" crystals, with the pyrites, are; the lower, colorless crystals contrast with and accent the pyrite-covered ones quite nicely.
4.4 x 4.4 x 3.4 cm. Balls of pale pink rhodochrosite and shiny golden pyrite cubes set against dark crystalline sphalerite - a pretty Peruvian combination piece out of the collection of Jaime Bird.
8.0 x 5.9 x 2.4 cm. An outstanding, old-time Butte combination and pseudomorph specimen from the Leonard Mine. The highlight of this fine piece is the top-left cluster of chalcocite after sharp covellite blades. The quartz plate matrix is stunningly and richly sprinkled with highly lustrous, striated, brass-yellow pyrite cuboctahedrons. This is classic combination material from the renowned locale and is from the Dr. Miguel Romero Collection formerly on display at the University of Arizona Science Center for the last 12 years.
8.0 x 6.9 x 4.0 cm. This find was made a couple of years back in China, and is absolutely unique: glittery, golden pyrite microcrystals preferentially deposited on the edges of flattened, pastel-pink, manganoan calcite rhombs. The calcite rhombs reach 4.4 cm on this specimen. Some of the specimens had very sparse coverage of pyrite, just a salting, but here, it is richly carpeting the crystal edges.
MD-221158 - Chalcopyrite, Rhodochrosite, Pyrite, Sphalerite, Quartz, Kutnohorite, Dickite - - Archived
Sweet Home Mine (Home Sweet Home Mine), Mount Bross, Alma District, Park Co., Colorado, USA
small cabinet, 6.5 x 5.3 x 3.0 cm.
|
 share specimen
|
6.5 x 5.3 x 3.0 cm. A fine association specimen. This piece features a translucent, gemmy, red/pink crystal group of rhombic Rhodochrosite measuring 2.3 x 1.5 cm, but the most attractive aspect of this specimen is the fact that it is associated with Chalcopyrite, modified cuboctahedra of purple and colorless/white Fluorite crystals, along with Pyrite, Sphalerite, Tetrahedrite, Quartz, Kutnohorite and possibly Dickite. Ex. Jaime Bird Collection.
5.0 x 4.6 x 3.4 cm. A classic Rico Pyrite showing near textbook pyritohedral form. The edges of the crystals have some wear, but the specimen is crystallized on the backside, and the luster is certainly above average. Ex. Jaime Bird Collection.
3.3 x 2.8 x 2.0 cm. 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. This specimen is a prime example of this material showing textbook pyritohedral form and virtually no damage. Ex. Jaime Bird Collection.
1.6 x 1.2 x 1.1 cm. This specimen is mostly likely from the Eagle mine as the habit matches perfectly. The label on the box states that this piece was collected on March 18, 1972. Ex. Jaime Bird Collection.
2.3 x 2.0 x 1.4 cm. A good Creede Pyrite thumbnail specimen hosting several somewhat curved crystals forming an attractive cluster perched atop black Sphalerite minor Galena. Ex. Jaime Bird Collection.
(click on a page number to go to that page:)
page 21 / 50 - prev - 737 specimens selected - next
Rob Lavinsky, rob@irocks.com
All Content and Design ©1996-2012 The Arkenstone
Mineral Specimens by species; or
by specimen id.
|
![Pyrite from Navajún, La Rioja, Spain [db_pics/mdpics/MD-216540a.jpg]](db_pics/mdpics/MD-216540a.jpg)
![Pyrite from Cananea, Mun. de Cananea, Sonora, Mexico [db_pics/mdpics/MD-217531a.jpg]](db_pics/mdpics/MD-217531a.jpg)
![Pyrite from Sparta, Randolph Co., Illinois, USA [db_pics/mdpics/MD-217555a.jpg]](db_pics/mdpics/MD-217555a.jpg)
![Sphalerite, Pyrite, Baryte from Wiesloch, Heidelberg, Baden-Württemberg, Germany [db_pics/mdpics/MD-219111a.jpg]](db_pics/mdpics/MD-219111a.jpg)
![Pyrite, Baryte from Cerro Warihuyn (Huarihuyn), Miraflores, Huamalíes Province, Huánuco Department, Peru [db_pics/mdpics/MD-219272a.jpg]](db_pics/mdpics/MD-219272a.jpg)
![Rhodochrosite, Sphalerite, Pyrite from Raura District, Cajatambo Province, Lima Department, Peru [db_pics/mdpics/MD-219299a.jpg]](db_pics/mdpics/MD-219299a.jpg)
![Chalcocite, Covellite, Pyrite, Quartz from Leonard Mine, Butte, Butte District, Silver Bow Co., Montana, USA [db_pics/mdpics/MD-220570a.jpg]](db_pics/mdpics/MD-220570a.jpg)
![Chalcocite, Covellite, Pyrite, Quartz from Leonard Mine, Butte, Butte District, Silver Bow Co., Montana, USA [db_pics/mdpics/MD-220570b.jpg]](db_pics/mdpics/MD-220570b.jpg)
![Calcite (Var: Manganoan Calcite), Pyrite from Chenzhong (?), Hunan Province, China [db_pics/mdpics/MD-221134a.jpg]](db_pics/mdpics/MD-221134a.jpg)
![Chalcopyrite, Rhodochrosite, Pyrite, Sphalerite, Quartz, Kutnohorite, Dickite from Sweet Home Mine (Home Sweet Home Mine), Mount Bross, Alma District, Park Co., Colorado, USA [db_pics/mdpics/MD-221158a.jpg]](db_pics/mdpics/MD-221158a.jpg)
![Chalcopyrite, Rhodochrosite, Pyrite, Sphalerite, Quartz, Kutnohorite, Dickite from Sweet Home Mine (Home Sweet Home Mine), Mount Bross, Alma District, Park Co., Colorado, USA [db_pics/mdpics/MD-221158b.jpg]](db_pics/mdpics/MD-221158b.jpg)
![Chalcopyrite, Rhodochrosite, Pyrite, Sphalerite, Quartz, Kutnohorite, Dickite from Sweet Home Mine (Home Sweet Home Mine), Mount Bross, Alma District, Park Co., Colorado, USA [db_pics/mdpics/MD-221158c.jpg]](db_pics/mdpics/MD-221158c.jpg)
![Chalcopyrite, Rhodochrosite, Pyrite, Sphalerite, Quartz, Kutnohorite, Dickite from Sweet Home Mine (Home Sweet Home Mine), Mount Bross, Alma District, Park Co., Colorado, USA [db_pics/mdpics/MD-221158d.jpg]](db_pics/mdpics/MD-221158d.jpg)
![Pyrite from Mountain Springs Mine (Rico Argentine), C.H.C. Hill, Rico District (Pioneer District), Dolores Co., Colorado, USA [db_pics/mdpics/MD-221188a.jpg]](db_pics/mdpics/MD-221188a.jpg)
![Pyrite, Molybdenite from http://www.mineral-forum.com/message-board/viewtopic.php?t=360. [db_pics/mdpics/MD-221192a.jpg]](db_pics/mdpics/MD-221192a.jpg)
![Pyrite from Gilman District (Battle Mountain District; Red Cliff District), Eagle Co., Colorado, USA [db_pics/mdpics/MD-221262a.jpg]](db_pics/mdpics/MD-221262a.jpg)
![Pyrite from Commodore Mine, Amethyst Vein, Creede District, Mineral Co., Colorado, USA [db_pics/mdpics/MD-221269a.jpg]](db_pics/mdpics/MD-221269a.jpg)