David K. Joyce

Steep Rock Iron Mine, Atikokan, Ontario

Steep Rock Iron Mines has not operated for 25 years or so. It was a great iron mine and cranked out high grade iron ore and pellets between 1944 and 1980. It was the first operating mine that I ever visited when I was 14 years old! The iron ore and surrounding rock was strongly brecciated in places and the breccia was often filled with excellent calcite, ankerite, manganese oxides and quartz crystals. Here are some nice examples.

All prices in Canadian dollars. For payment in US$, deduct 19% or multiply by 0.81.

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

Dave at Steep Rock Iron MineSteep Rock Iron Mine, Atikokan, Ontario
  • Item #7883
  • Dave at Steep Rock Iron Mine
  • cm
  • Largest Crystal Size: n/a
  • $0.00
  • Steep Rock Iron Mine
  • Atikokan
    Ontario, Canada
  • When I was fourteen years old, I won a trip to Steep Rock Iron Mines. Every year, the junior mineral club that I belonged to sent two kids off to lean about mining, geology, mineral processing, etc. We had a ball. We stayed at the directors' lodge, visited the open pit mine, the mill, the experimental underground mine and, of course, collected LOTS of great mineral specimens. The rock in and around the hematite ore was heavily brecciated in places and the breccia was often filled with excellent calcite, quartz, iron oxide and manganese oxide crystals.

    Steep Rock operated between 1944 and 1980 cranking out many tonnes of high grade ore and pellets. Mostly full of water now! Here are some interesting specimens from that venerable old producer.
CalciteSteep Rock Iron Mine, Atikokan, Ontario
  • Item #18237
  • Calcite
  • 14.2x9.1x3.0 cm
  • Largest Crystal Size: 24mm
  • $50.00
  • Steep Rock Iron Mine
  • Atikokan
    Ontario, Canada
  • A yummy plate of deep-chocolate brown rhombohedral calcite crystals on a matrix of iron carbonate and oxides. Different specimen from this long closed famous iron mine. A little bruising but displays fairly well!
ManganiteSteep Rock Iron Mine, Atikokan, Ontario
  • Item #21338
  • Manganite
  • 12.3x10.8x8.3 cm
  • Largest Crystal Size: 10mm
  • $160.00
  • Caland Ore Properties
  • Atikokan
    Ontario, Canada
  • A massive, heavy, geode-like specimen of solid coarsely crystallized manganite. The front of the specimen opens to a cavity lined with manganite crystals up to 10mm or so. Extra postage on this one! Displays perfectly!
QuartzSteep Rock Iron Mine, Atikokan, Ontario
  • Item #21328
  • Quartz
  • 9.6x6.3x5.1 cm
  • Largest Crystal Size: As above
  • $65.00
  • Steep Rock Lake
  • Atikokan
    Ontario, Canada
  • A very nice, stout, clear, colourless quartz crystal from this famous mine. It is pretty, clear and glassy closer to the termination end with increasing milkiness torads the base. It is doubly terminated with a silgle termination at one end and multiple terminations near the lower end. It has a crystal shard attached near the termination. Some iron mineralization near the lower end as well. Looks great!
SideriteSteep Rock Iron Mine, Atikokan, Ontario
  • Item #21330
  • Siderite
  • 11.8x8.2x4.2 cm
  • Largest Crystal Size: 2mm
  • $65.00
  • Hogarth Pit, Steep Rock Iron Mine
  • Atikokan
    Ontario, Canada
  • A strangely but interestingly, shaped cabinet specimen of hematite-reddened siderite crystals. Makes for a nice display piece!
GoethiteSteep Rock Iron Mine, Atikokan, Ontario
  • Item #21331
  • Goethite
  • 10.3x8.0x3.3 cm
  • Largest Crystal Size: 5mm
  • $55.00
  • Errington Pit, Steep Rock Iron Mine
  • Atikokan
    Canada
  • A nice-looking specimen of this Iron hydroxide mineral showing botryoidal structure with a bit of stalactic twist to it. One of the ore minerals at the Steep Rock Iron Mine! Very interesting!
Manganite, QuartzSteep Rock Iron Mine, Atikokan, Ontario
  • Item #21333
  • Manganite, Quartz
  • 10.5x6.4x4.0 cm
  • Largest Crystal Size: Ma 10mm, Qu 4mm
  • $95.00
  • Caland Ore Properties
  • Atikokan
    Ontario, Canada
  • A vein section of manganite and quartz with most of the interior of the vein opening lined with splendent, black manganite crystals. The manganite crystals are extremely sharp and lustrous with chisel-tipped terminations. Also a few bright quartz crystals as well. Looks great!
CalciteSteep Rock Iron Mine, Atikokan, Ontario
  • Item #21335
  • Calcite
  • 18.9x12.0x2.0 cm
  • Largest Crystal Size: 10mm
  • $75.00
  • Steep Rock Iron Mine, Hogarth Pit
  • Atikokan
    Ontario, Canada
  • A full plate of off white, slightly iron tinted calcite crystals. The crystals are prismatic with rhombohedral terminations. Nice example!
ManganiteSteep Rock Iron Mine, Atikokan, Ontario
  • Item #21343
  • Manganite
  • 11.9x7.1x4.8 cm
  • Largest Crystal Size: 6mm
  • $85.00
  • Caland Ore Properties
  • Atikokan
    Ontario, Canada
  • This piece has a vug in the front of it that is lined with crystals of manganite that are actually bundles of semi-parallel needle-like, terminated crystals. Very nice!
ManganiteSteep Rock Iron Mine, Atikokan, Ontario
  • Item #21344
  • Manganite
  • 9.5x6.7x3.5 cm
  • Largest Crystal Size: 5mm
  • $130.00
  • Caland Ore Properties
  • Atikokan
    Ontario, Canada
  • A vein of solid manganite cuts through this ferruginous matrix and opens at the fron into a wide vug, totally lined with lustrous, black manganite crystals. Looks great!
ManganiteSteep Rock Iron Mine, Atikokan, Ontario
  • Item #21351
  • Manganite
  • 7.0x4.8x4.1 cm
  • Largest Crystal Size: 10mm
  • $65.00
  • Caland Ore Properties
  • Atikokan
    Ontario, Canada
  • Interesting, rounded aggregates of lustrous, black manganite crystals are present atop of an earlier generation of manganite on the top of this piece. Very interesting!
ManganiteSteep Rock Iron Mine, Atikokan, Ontario
  • Item #21350
  • Manganite
  • 12.6x10.0x7.0 cm
  • Largest Crystal Size: 4mm
  • $140.00
  • Caland Ore Properties
  • Atikokan
    Ontario, Canada
  • A vug at the front of this matrix of brecciated iron oxides and carbonates is fully lined with sharp-lustrous, 4-5mm manganite crystals. Excellent example of this mineral that displays well!
ManganiteSteep Rock Iron Mine, Atikokan, Ontario
  • Item #21347
  • Manganite
  • 7.1x5.5x5.1 cm
  • Largest Crystal Size: 3mm
  • $60.00
  • Caland Ore Properties
  • Atikokan
    Ontario, Canada
  • This piece has a 2-3mm crystal lined vug of manganite on the right side-front. This is a very nice example of this manganese oxide mineral.
CalciteSteep Rock Iron Mine, Atikokan, Ontario
  • Item #21448
  • Calcite
  • 7.0x6.0x3.0 cm
  • Largest Crystal Size: n/a
  • $40.00
  • Steep Rock Iron Mine
  • Atikokan
    Ontario, Canada
  • The top of this iron-carbonate rich rock is covered by a blanket of botryoidal, pure-white calcite. The botryoids are composed of curved crystals of calcite. Sits at a convenient angle for viewing and so displays well!