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Thunder Bay Amethyst (TBA12)
Notes specific to this specimen: Warm purple crystals line the cavities in this specimen. Nice collection of complex cavities intersecting in this piece. This is a “stand-up” with a cut flat bottom allowing it to sit upright to show off the crystal cavity nicely. Rock is naturally rough all the way around.
SIZE: 3″x 3″x 2″
Name / Species: Quartz, variety Amethyst
Age: Mesoproterozoic Era – 1.1 billion years
Unit: Archean Granite (unassigned formation)
Site: Diamond Willow Mine, Pearl, Ontario, Canada
Collected: 2016
Collected by: Jon and JulieDocumentation: This authentic specimen comes with a Certificate of Authenticity and Origin.
$82.00Thunder Bay Amethyst (TBA12)
$82.00 -
Thunder Bay Amethyst (TBA11)
Notes specific to this specimen: Warm purple crystals line the cavities in this specimen. This piece is a “stand-up” with a cut flat bottom, allowing it to sit upright to show off the crystal cavity nicely. Rock is naturally rough all the way around.
SIZE: 4″x 3″x 2″
Name / Species: Quartz, variety Amethyst
Age: Mesoproterozoic Era – 1.1 billion years
Unit: Archean Granite (unassigned formation)
Site: Diamond Willow Mine, Pearl, Ontario, Canada
Collected: 2016
Collected by: Jon and JulieDocumentation: This authentic specimen comes with a Certificate of Authenticity and Origin.
$84.00Thunder Bay Amethyst (TBA11)
$84.00 -
North American Rift (RIFT7)
Notes specific to this specimen: Beautiful white quartz infills the fractures of jet-black Rove Formation, with an edge vein of purple fluorite. Cut front face is polished while the back is natural but just as impressive. This specimen is a “stand-up” with a cut flat bottom allowing it to sit upright to show off the display face. Back is naturally rough.
SIZE: 5″ x 6″ x 2″
Minerals: White Quartz, Citrine, Fluorite
Age: Mesoproterozoic Era – 1.1 billion years
Unit: Rove Formation
Site: Cerdito Prospect, Thunder Bay, Ontario, Canada
Collected: 2025
By: Jon & JulieDocumentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin.
$625.00North American Rift (RIFT7)
$625.00 -
North American Rift (RIFT6)
Notes specific to this specimen: A very dynamic piece. Beautiful snow-white quartz veins with a unique deep Smoky Quartz crystal vug in one of the complex fractures of jet-black Rove Formation. Never seen anything like it. Usually when the veins have crystals they are simply terminations of the predominant mineral filling the fracture. But not in this case! This piece is 100% natural with no cuts or polishings.
SIZE: 2″ x 3″ x 1.5″
Minerals: White Quartz, Citrine, Fluorite
Age: Mesoproterozoic Era – 1.1 billion years
Unit: Rove Formation
Site: Cerdito Prospect, Thunder Bay, Ontario, Canada
Collected: 2025
By: Jon & JulieDocumentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin.
$85.00North American Rift (RIFT6)
$85.00 -
North American Rift (RIFT5)
Notes specific to this specimen: Incredible find! You can just about feel the rock ripping apart – a very dynamic piece. One of the best we’ve seen. Beautiful citrine and smoky quartz infilling in these graphic fractures of jet-black Rove Formation. Cut front face is polished. This specimen is a “stand-up” with a cut flat bottom allowing it to sit upright to show off the display face. Back is naturally rough.
SIZE: 5″x 6″x 2″
Minerals: White Quartz, Citrine, Fluorite
Age: Mesoproterozoic Era – 1.1 billion years
Unit: Rove Formation
Site: Cerdito Prospect, Thunder Bay, Ontario, Canada
Collected: 2025
By: Jon & JulieDocumentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin.
$1,425.00North American Rift (RIFT5)
$1,425.00 -
North American Rift (RIFT4)
Notes specific to this specimen: AWhite quartz infills the fractures of jet-black Rove Formation, framed in veins of purple fluorite. Cut front face is polished while the back is natural but just as impressive. This specimen is a “stand-up” with a cut flat bottom allowing it to sit upright to show off the display face. Back is naturally rough.
SIZE: 2″x 2″x 4″
Minerals: White Quartz, Citrine, Fluorite
Age: Mesoproterozoic Era – 1.1 billion years
Unit: Rove Formation
Site: Cerdito Prospect, Thunder Bay, Ontario, Canada
Collected: 2022
By: Jon & JulieDocumentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin.
$185.00North American Rift (RIFT4)
$185.00 -
North American Rift (RIFT3)
Notes specific to this specimen: Abundance of healed fractures makes this piece a beautiful zebra-striped pattern. Stark white quartz and a faint amethyst infills the fractures of jet-black Rove Formation. Cut front face is polished while the back is natural but just as impressive. This specimen is a “stand-up” with a cut flat bottom allowing it to sit upright to show off the display face. Back is naturally rough.
SIZE: 4″x 4″x 1.5″
Minerals: White Quartz, Citrine, Fluorite
Age: Mesoproterozoic Era – 1.1 billion years
Unit: Rove Formation
Site: Cerdito Prospect, Thunder Bay, Ontario, Canada
Collected: 2022
By: Jon & JulieDocumentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin.
$265.00North American Rift (RIFT3)
$265.00 -
North American Rift (RIFT2)
Notes specific to this specimen: This is a very 3-D piece with front and bottom sawn and smooth, while the rest is natural rough. Beautiful citrine and smoky quartz infilling the fractures of jet-black Rove Formation. Some small crystal-lined cavities. Cut front face has a smooth satin finish. This specimen is a “stand-up” with a cut flat bottom allowing it to sit upright to show off the display face. Back is naturally rough.
SIZE: 3″x 3″x 2″
Minerals: White Quartz, Citrine, Fluorite
Age: Mesoproterozoic Era – 1.1 billion years
Unit: Rove Formation
Site: Cerdito Prospect, Thunder Bay, Ontario, Canada
Collected: 2022
By: Jon & JulieDocumentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin.
$165.00North American Rift (RIFT2)
$165.00 -
North American Rift (RIFT1)
Notes specific to this specimen: Great jagged healed fractures! Beautiful white quartz and citrine infilling mixed with a hint of green fluorite in the fractures of jet-black Rove Formation. Cut front face has a nice smooth satin finish. This specimen is a “stand-up” with a cut flat bottom, allowing it to sit upright to show off the display face. Back is naturally rough.
SIZE: 3″x 3″x 2″
Minerals: White Quartz, Citrine, Fluorite
Age: Mesoproterozoic Era – 1.1 billion years
Unit: Rove Formation
Site: Cerdito Prospect, Thunder Bay, Ontario, Canada
Collected: 2025
By: Jon & JulieDocumentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin.
$185.00North American Rift (RIFT1)
$185.00 -
Grypania Spiralis (GRY2)
Notes specific to this specimen: Nice cabinet specimen showing several nice segments of Grypania with the classic curving arc formed by this species. Some segments show great examples of what’s been described as “desiccation” of the outer sheath along its length. This results in impingement of the sheath between individual cells, giving it a “bumpy” appearance. The desiccated segments are very rare.
SIZE: 4″ x 5″ x 0.75″
NAME: Grypania spiralis
AGE: Paleoproterozoic Era / 2.1 billion years
UNIT: Negaunee Iron Formation
SITE: Empire Mine, Palmer, Michigan$6,500.00Grypania Spiralis (GRY2)
$6,500.00 -
Grypania Spiralis (GRY9)
Notes specific to this specimen: Nice slab showing several clear segments of Grypania, a couple with the classic full circles and others with curving arc formed by this species. A couple of the segments – like the circle in the lower middle – show examples of what’s been described as “desiccation” of the outer sheath along its length. This results in impingement of the sheath between individual cells, giving it a “bumpy” appearance. The desiccated segments are very rare.
SIZE: 3″ x 3″
NAME: Grypania spiralis
AGE: Paleoproterozoic Era / 2.1 billion years
UNIT: Negaunee Iron Formation
SITE: Empire Mine, Palmer, Michigan$2,600.00Grypania Spiralis (GRY9)
$2,600.00 -
Grypania Spiralis (GRY8)
Notes specific to this specimen: Nice slab showing several clear segments of Grypania, a couple with the classic full circles and others with curving arc formed by this species. A couple of the segments – like the circle in the lower middle – show examples of what’s been described as “desiccation” of the outer sheath along its length. This results in impingement of the sheath between individual cells, giving it a “bumpy” appearance. The desiccated segments are very rare.
SIZE: 1.5″ x 2″
NAME: Grypania spiralis
AGE: Paleoproterozoic Era / 2.1 billion years
UNIT: Negaunee Iron Formation
SITE: Empire Mine, Palmer, Michigan$950.00Grypania Spiralis (GRY8)
$950.00
