David K. Joyce Minerals

Siegenite, Sweetwater Mine, Reynolds County, Missouri

The Sweetwater Mine has been a prolific producer of mineral specimens for decades. That "Mississippi Valley Deposit" type of orebody has produced thousands of mineral specimens, particularly calcite, marcasite, galena, sphalerite, etc. One of the less common minerals that occurs in these types of deposits is siegenite, a cobalt-nickel sulphide. Here are some very nice examples of that mineral.

All prices in Canadian dollars. For payment in US$, deduct 22% or multiply by 0.78.

Click on any of the following thumbnails to view a larger image of the specimen.

Siegenite, Chalcopyrite, SphaleriteSiegenite, Sweetwater Mine, Reynolds County, Missouri
  • Item #13449
  • Siegenite, Chalcopyrite, Sphalerite
  • 4.3x3.4x3.4 cm
  • Largest Crystal Size: 1.5mm
  • $55.00
  • Sweetwater Mine
  • Reynolds County
    Missouri, USA
  • Rounded aggregates of sharp siegenite crystals formed on chalcopyrite are scattered about on this dolomite-limestone matrix. Good example of this relatively rare mineral.
Siegenite, Chalcopyrite, DolomiteSiegenite, Sweetwater Mine, Reynolds County, Missouri
  • Item #13451
  • Siegenite, Chalcopyrite, Dolomite
  • 4.8x5.6x3.2 cm
  • Largest Crystal Size: 2mm
  • $75.00
  • Sweetwater Mine
  • Reynolds County
    Missouri, USA
  • The top of this limestone fragment is covered with well formed siegenite and dolomite crystals. Very good example. Displays well.
Siegenite, Chalcopyrite, DolomiteSiegenite, Sweetwater Mine, Reynolds County, Missouri
  • Item #13445
  • Siegenite, Chalcopyrite, Dolomite
  • 5.3x4.0x3.6 cm
  • Largest Crystal Size: 1.5mm
  • $40.00
  • Sweetwater Mine
  • Reynolds County
    Missouri, USA
  • Lots of well formed cube-octahedral crystals of siegenite are scattered in rounded clusters on chalcopyrite on this limestone matrix. Very good example of this mineral1