David K. Joyce

Broken Hammer Mine, near Sudbury, Ontario

The Broken hammer Mine was a small precious metals-Ni-Cu mine that operated for a couple of years on the north side of the Sudbury Basin. before and during the operation, some very nice sperrylite crystals were recovered, some amongst the best recovered from anywhere. To learn more about the mine, check out the article about the mine in the "Articles" section of this website. Here are some nice examples of sperrylite from that mine!

All prices in Canadian dollars. For payment in US$, deduct 21% or multiply by 0.79.

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

Sperrylite, in chalcopyriteBroken Hammer Mine, near Sudbury, Ontario
  • Item #23000
  • Sperrylite, in chalcopyrite
  • 6.3x4.1x5.4 cm
  • Largest Crystal Size: 5.5mm
  • $2,050.00
  • Broken Hammer Mine
  • Wisner Township (near Sudbury)
    Ontario, Canada
  • A very nice, sharp sperrylite crystal partially embedded and nicely exposed in a, mostly, chalcopyrite matrix. The crystal has very sharp, mirror-like faces over most of it with an area on the back part of it where is partially intergrew with chalcopyrite and the faces, although complete are not a smooth as the front, display side. Extra photo's available. Displays perfectly!
Sperrylite, in chalcopyriteBroken Hammer Mine, near Sudbury, Ontario
  • Item #23001
  • Sperrylite, in chalcopyrite
  • 6.0x5.0x4.7 cm
  • Largest Crystal Size: 7mm
  • $3,100.00
  • Broken Hammer Mine
  • Wisner Township (near Sudbury)
    Ontario, Canada
  • A brilliant, 7mm sperrylite crystal is well exposed in a chalcopyrite vein on the top of this rock and chalcopyrite matrix. The crystal faces are mirror-like! There are a couple of chips out of the crystal which are not too noticeable. Extra photo's available. displays perfectly!
Sperrylite, in chalcopyriteBroken Hammer Mine, near Sudbury, Ontario
  • Item #23002
  • Sperrylite, in chalcopyrite
  • 4.3x2.9x2.5 cm
  • Largest Crystal Size: 4mm
  • $475.00
  • Broken Hammer Mine
  • Wisner Township (near Sudbury)
    Ontario, Canada
  • A fairly sharp, cube octahedron of sperrylite is well exposed in a chalcopyrite vein that cuts across the top of this rock matrix. The crystasl is well formed but the faces are slightly contoured and pitted because of partial intergrowth with the chalcopyrite. As well, there is a chip out of the top of the crystal. Still, it is a very good example of this relatively rare mineral!