David K. Joyce

Rocks and Ores, Unusual Sudbury Basin Ores -Millerite, Pentlandite, etc.

The Sudbury Basin is one of the most prolific nickel and copper producing areas of the world. It dwarfs ALL other nickel producing areas in terms of total production over its 130 or so years of life. While the run-of-mine ores are fairly low grade -2% or so Ni with some copper and PGE's, on occasion, super high grade and unusual ores are encountered. This one of the few places in the world where you can find millerite that occurs in cleavable masses with bright, mirror-like cleavage planes. As well, the pentlandite, rarely, can be extremely rich. Here are some fine examples. Extra postage will probably apply since many are very dense/heavy!

All prices in Canadian dollars. For payment in US$, deduct 20% or multiply by 0.8.

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

Millerite, borniteRocks and Ores, Unusual Sudbury Basin Ores -Millerite, Pentlandite, etc.
  • Item #29445
  • Millerite, bornite
  • 6.2x2.81.9 cm
  • Largest Crystal Size: cleavages
  • $45.00
  • Strathcona Mine
  • Levack
    Ontario, Canada
  • This piece is a vein of solid millerite, characterized by wide, coarse, shiny cleavages. Both sides of the vein have bornite and/or chlorite layers in contact with the wall of the vein.
Millerite, BorniteRocks and Ores, Unusual Sudbury Basin Ores -Millerite, Pentlandite, etc.
  • Item #29437
  • Millerite, Bornite
  • 5.5x2.9x2.2 cm
  • Largest Crystal Size: cleavages
  • $45.00
  • Strathcona Mine
  • Levack
    Ontario, Canada
  • A vein section of solid millerite in coarsely crystallized form. Shows coarse cleavage very unlike normal fibrous or acicular millerite. The vain has a margin of what appears to be fine grained chlorite and a bit of bornite. Very interesting!
Millerite, BorniteRocks and Ores, Unusual Sudbury Basin Ores -Millerite, Pentlandite, etc.
  • Item #29438
  • Millerite, Bornite
  • 4.7x4.0x1.3 cm
  • Largest Crystal Size: cleavages
  • $35.00
  • Strathcona Mine
  • Levack
    Ontario, Canada
  • A vein of fairly solid cleavable millerite with with some bornite on the sides. Interesting and very different millerite!
Millerite, BorniteRocks and Ores, Unusual Sudbury Basin Ores -Millerite, Pentlandite, etc.
  • Item #29439
  • Millerite, Bornite
  • 5.5x3.2x1.8 cm
  • Largest Crystal Size: cleavages
  • $45.00
  • Strathcona Mine
  • Levack
    Ontario, Canada
  • This specimen is a vein section of solid millerite crystallized in a very coarse way, very different than the acicular or fibrous millerite that we are used to seeing. Some bornite on the margins of the vein.
MilleriteRocks and Ores, Unusual Sudbury Basin Ores -Millerite, Pentlandite, etc.
  • Item #29440
  • Millerite
  • 4.8x4.0x1.9 cm
  • Largest Crystal Size: cleavages
  • $55.00
  • Strathcona Mine
  • Levack
    Ontario, Canada
  • Ane excellent vein section of pure, coarsely crystallized millerite. There is a thin layer of fine chlorite on one side where the vein was in contact with wallrock. Very interesting and different millerite!