David K. Joyce Minerals

Altaite, Mattagami Lake Mine, Matagami, Quebec

Here are some ASTOUNDING specimens of altaite from one of the classic localities. These are extremely rich, with coarse cubic cleavages of tin-white altaite coursing through two types of matrices. One is a magnetite-rich matrix with rounded crystals of magnetite embedded in the rock and the altaite. The other is a sulphide- rich matrix (no magnetite) with pyrite and chalcopyrite inter-mixed with the altaite. There is supposed to be tellurantimony and mattagamite intermixed with the altaite. Honestly, I do not know what they look like or what size fraction they exist in, in these specimens (could be extremely fine-grained). I do know that they are GREAT specimens of altaite. Also, I note that the mine is named Mattagami Lake Mine (with two "tts"), whereas the town of Matagami and the actual Matagami Lake are spelled differently with one "t". I'm not sure why this is but if I find out, I'll let you know!

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.

Altaite, Pyrite, Chalcopyrite Altaite, Mattagami Lake Mine, Matagami, Quebec
  • Item #16265
  • Altaite, Pyrite, Chalcopyrite
  • 6.8x4.6x4.1 cm
  • Largest Crystal Size: n/a
  • $120.00
  • Mattagami Lake Mine
  • Matagami
    Quebec, Canada
  • Rich, coarse areas of altaite up to 2 cm across are embedded in zones of pyrite and chalcopyrite in sort of sheeted chloritized matrix, possible metamorphosed volcanics. Not magnetic. Rich excellent specimen!
Altaite, Sphalerite, ChalcopyriteAltaite, Mattagami Lake Mine, Matagami, Quebec
  • Item #16266
  • Altaite, Sphalerite, Chalcopyrite
  • 8.2x4.0x2.0 cm
  • Largest Crystal Size: n/a
  • $65.00
  • Mattagami Lake Mine
  • Matagami
    Quebec, Canada
  • Bright-silvery altaite cleavages are richly distributed through this matrix of rock and other sulphides. Very nice!
AltaiteAltaite, Mattagami Lake Mine, Matagami, Quebec
  • Item #16268
  • Altaite
  • 9.3x6.5x4.0 cm
  • Largest Crystal Size: 1.0cm cleavage
  • $175.00
  • Mattagami Lake Mine
  • Matagami
    Quebec, Canada
  • Very coarse, bright-silvery cleavages are present all around this specimen. Rich!
Altaite, Chalcopyrite, SphaleriteAltaite, Mattagami Lake Mine, Matagami, Quebec
  • Item #16269
  • Altaite, Chalcopyrite, Sphalerite
  • 5.2x5.2x3.3 cm
  • Largest Crystal Size: n/a
  • $85.00
  • Mattagami Lake Mine
  • Matagami
    Quebec, Canada
  • This brecciated matrix is cemented by veins of altaite and chalcopyrite with a little sphalerite. Not magnetic. Very rich.
Altaite, ChalcopyriteAltaite, Mattagami Lake Mine, Matagami, Quebec
  • Item #16270
  • Altaite, Chalcopyrite
  • 3.6x4.2x3.1 cm
  • Largest Crystal Size: n/a
  • $65.00
  • Mattagami Lake Mine
  • Matagami
    Quebec, Canada
  • A rich zone of coarse, silvery-white altaite runs through the middle of this piece. Very rich!
Altaite, Chalcopyrite, SphaleriteAltaite, Mattagami Lake Mine, Matagami, Quebec
  • Item #16271
  • Altaite, Chalcopyrite, Sphalerite
  • 5.1x3.1x2.1 cm
  • Largest Crystal Size: n/a
  • $65.00
  • Mattagami Lake Mine
  • Matagami
    Quebec, Canada
  • This specimen is largely composed of sulphides with a rich concentration of coarse cleavages of silvery altaite.
AltaiteAltaite, Mattagami Lake Mine, Matagami, Quebec
  • Item #16273
  • Altaite
  • 3.5x3.0x1.5 cm
  • Largest Crystal Size: n/a
  • $65.00
  • Mattagami Lake Mine
  • Matagami
    Quebec, Canada
  • Silvery, coarse cleavages of altaite are visible throughout this piece. Rich specimen of this telluride mineral.
Altaite, Pyrrhotite, SphaleriteAltaite, Mattagami Lake Mine, Matagami, Quebec
  • Item #16274
  • Altaite, Pyrrhotite, Sphalerite
  • 6.5x3.1x2.1 cm
  • Largest Crystal Size: cleavage-6mm, pyrr-2mm
  • $75.00
  • Mattagami Lake Mine
  • Matagami
    Quebec, Canada
  • Rich cleavages of altaite cover the top of this specimen of, mostly, various sulphides and a little calcite. There is even a 2mm sharp, striated pyrrhotite crystal.
AltaiteAltaite, Mattagami Lake Mine, Matagami, Quebec
  • Item #16276
  • Altaite
  • 5.9x3.8x0.9 cm
  • Largest Crystal Size: n/a
  • $40.00
  • Mattagami Lake Mine
  • Matagami
    Quebec, Canada
  • Rich, coarse altaite cleavages are well exposed all over this thin wedge.
AltaiteAltaite, Mattagami Lake Mine, Matagami, Quebec
  • Item #16278
  • Altaite
  • 5.7x2.1x1.6 cm
  • Largest Crystal Size: 4mm cleavages
  • $40.00
  • Mattagami Lake Mine
  • Matagami
    Quebec, Canada
  • Rich altaite cleavages interspersed through this fragment of mostly calcite.
AltaiteAltaite, Mattagami Lake Mine, Matagami, Quebec
  • Item #16282
  • Altaite
  • 6.8x5.1x4.2 cm
  • Largest Crystal Size: 4mm cleavages
  • $75.00
  • Mattagami Lake Mine
  • Matagami
    Quebec, Canada
  • A zone of rich altaite cuts through this largely magnetite and pyrrhotite matrix. Rich, bright cleavages of this rare lead telluride mineral. Displays well.
AltaiteAltaite, Mattagami Lake Mine, Matagami, Quebec
  • Item #16285
  • Altaite
  • 6.5x6.2x5.5 cm
  • Largest Crystal Size: 5mm cleavages
  • $125.00
  • Mattagami Lake Mine
  • Matagami
    Quebec, Canada
  • A rich specimen of altaite laced through magnetite rich rock matrix. Looks great!
AltaiteAltaite, Mattagami Lake Mine, Matagami, Quebec
  • Item #16290
  • Altaite
  • 6.8x5.3x4.3 cm
  • Largest Crystal Size: 7mm cleavages
  • $140.00
  • Mattagami Lake Mine
  • Matagami
    Quebec, Canada
  • Rich looking specimen laced through with coarse, silvery, bright cleavages of this lead telluride mineral. Displays very well.