Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Wheal Jane, Kea, St. Day dist., Cornwall, England
- Formula
- FeS2
- Size
- Cabinet 12x7.5x6cm
- Tagged
- sulfide
- Special Info
- Repaired
I kind of went crazy on the photos, but the specimen is big and full of crystals. The main mineral is of course the large brassy crystals of Marcasite to 2cm. With these Marcasite crystals and not noted at all on the original label are superb crystals of Tetrahedrite to 5mm amongst needle Quartz. Ordinarily I would not place this specimen on the website since it is reparied. You can see the fracture down the center. However, the repair is strong and survived an ultrasonic cleaning. Looking past this flaw, I believe the specimen is still a good old specimen from Cornwall highlighting the Marcasite and Tetrahedrite and of course an important Cornish locality. See prov. tab for original tag.
- Availability
- Sold
- Locality
- Bear Hole mine, Shullsburg, Lafayette Co., Wisconsin, United States
- Formula
- FeS2
- Size
- Cabinet 11x11x3cm
- Tagged
- sulfide
An excellent large cabinet specimen with a coppery gold coating. The specimen is composed of cockscomb habit 3-5mm tabular crystals stacked and in parallel growth. The matrix is Sphalerite.
- Availability
- Sold
- Locality
- Bear Hole mine, Shullsburg, Lafayette Co., Wisconsin, United States
- Formula
- FeS2
- Size
- SmCabinet 7x6.5x3.5cm
- Tagged
- sulfide
An interesting and unusual specimen from a hard-to-obtain locality. The centerpiece is a "ball" of Marcasite with tightly packed bladed crystals with good Marcasite color. It is set on a matrix of Sphalerite.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Platteville dist., Grant Co., Wisconsin, United States
- Formula
- FeS2
- Size
- SmCabinet 5.5x5x2.5cm
- Tagged
- sulfide
The specimn is not as fragile as it look. It is basically a hemisherical skull" of solid Marcasite.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Platteville dist., Grant Co., Wisconsin, United States
- Formula
- FeS2
- Size
- Miniature 4x3x3cm
- Tagged
- sulfide
The first two photos represent the color perfectly. The group contains numerous 6mm crystals,
- Availability
- Sold
- Locality
- Elk Creek, Meade Co., South Dakota, United States
- Formula
- FeS2
- Size
- SmCabinet 7x5.5x5cm
- Tagged
- sulfide
Two formations of Marcasite from 1 to 3cm on Calcite.
