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Thunder Bay Amethyst (TBA21)
Notes specific to this specimen: Deep purple crystals all over the front and top of 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: 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.
$95.00Thunder Bay Amethyst (TBA21)
$95.00 -
Rainbow Stromatolite (RS2)
Notes specific to this specimen: Another one of the original discovery pieces, collected by us in August 2025. Unusual wine coloring with distinct colonies.
SIZE: 1.5″x 4″x .5″
Name Collenia sp. (possible new species)
Age Anamikean / Paleoproterozoic – 1.88 billion years
Unit Gunflint Iron Formation
Site Ontario, Canada
Date 2025Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$110.00Rainbow Stromatolite (RS2)
$110.00 -
Kona Dolomite (KONA26)
Notes specific to this specimen: Some Kona Dolomite we have carved into various shapes to accentuate the colors and patterns. This obelisk shows lively color and great patterning that is present in the better pieces of this unique material. Polished on all sides, with a flat base so it stands up easily.
SIZE: 5″
NAME: Collenia kona
AGE: Paleoproterozoic Era 2.3 billion years
UNIT: Kona Formation
SITE: Kona Hills, Michigan
DATE: 2025
BY: Jon Kramer & Julie MartinezDocumentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$110.00Kona Dolomite (KONA26)
$110.00 -
Kona Dolomite (KONA27)
Notes specific to this specimen: Some Kona Dolomite we have carved into various shapes to accentuate the colors and patterns. This obelisk shows lively color and great patterning that is present in the better pieces of this unique material. Polished on all sides, with a flat base so it stands up easily.
SIZE: 5″
NAME: Collenia kona
AGE: Paleoproterozoic Era 2.3 billion years
UNIT: Kona Formation
SITE: Kona Hills, Michigan
DATE: 2025
BY: Jon Kramer & Julie MartinezDocumentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$110.00Kona Dolomite (KONA27)
$110.00 -
Fossil Sand Dollar and Clam (KH24)
Notes specific to this specimen: An outstanding polished Dendraster sand dollar with showy natural petroleum staining and great color pattern, along with some unpolished Psuedocardium clams. All mounted on native matrix with a flat bottom ready to display. Comes with an attractive information card.
Size: 2″x4″x3″
NAME: Dendraster (sand dollar) & Psuedocardium (clam)
AGE: Pliocene Epoch – 4 million years
UNIT: Etchegoin Formation
SITE: Kettleman Hills, California
COLLECTED: 2026
BY: Jon KramerDocuments: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$110.00 -
Kona Dolomite (KONA21)
Notes specific to this specimen: Some Kona Dolomite we have carved into various shapes to accentuate the colors and patterns. Classic pyramid shape with nice deep red iron oxide coloration. Polished all the way around – on all sides and base.
SIZE: 2.75″
NAME: Collenia kona
AGE: Paleoproterozoic Era 2.3 billion years
UNIT: Kona Formation
SITE: Kona Hills, Michigan
DATE: 2025
BY: Jon Kramer & Julie MartinezDocumentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$112.00Kona Dolomite (KONA21)
$112.00 -
Kona Dolomite (KONA22)
Notes specific to this specimen: Some Kona Dolomite we have carved into various shapes to accentuate the colors and patterns. Classic pyramid shape with nice deep red iron oxide coloration. Polished all the way around – on all sides and base.
SIZE: 2.75″
NAME: Collenia kona
AGE: Paleoproterozoic Era 2.3 billion years
UNIT: Kona Formation
SITE: Kona Hills, Michigan
DATE: 2025
BY: Jon Kramer & Julie MartinezDocumentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$112.00Kona Dolomite (KONA22)
$112.00 -
Fossil Sand Dollar and Clam (KH9)
Notes specific to this specimen: One large polished sand dollar with two great polished clams. Matrix piece that has a flat bottom so it stands nicely.
SIZE: 4″x 2″x 3″
NAME: Psuedocardium & Dendraster
AGE: Pliocene 4 million years
UNIT: Etchegoin Formation
SITE: Kettleman Hills, CaliforniaDocuments: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$115.00 -
Rainbow Stromatolite (RS3)
Notes specific to this specimen: Another one of the original discovery pieces, collected by us in August 2025. Deep red colonies surrounded by high iron hematite matrix.
SIZE: 2″x 2.58″x .75″
Name Collenia sp. (possible new species)
Age Anamikean / Paleoproterozoic – 1.88 billion years
Unit Gunflint Iron Formation
Site Ontario, Canada
Date 2025Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$120.00Rainbow Stromatolite (RS3)
$120.00 -
Banded Iron Formation A/B Pair (BIF13)
Notes specific to this specimen: This is the first time we’ve offered a sliced and polished matched pair. Nice hand specimen recently excavated. Beautiful colors of nice red jasper alternating with silver hematite banding. A classic specimen cut in two, with the face of each side polished while the rest is naturally rough. From the classic BIF Type Locality of Jasper Knob in Ishpeming, Michigan.
SIZE: 4″x 3″ x 2″
Minerals: Jasper & Hematite
Age: Paleoproterozoic – 2.1 billion years
Unit: Negaunee Iron Formation
Site: Ishpeming, Michigan
Collected: September 2026
By: Jon KramerDocumentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$120.00 -
Kona Dolomite (KONA28)
Notes specific to this specimen: Some Kona Dolomite we have carved into various shapes to accentuate the colors and patterns. This obelisk shows lively color and great patterning that is present in the better pieces of this unique material. Polished on all sides, with a flat base so it stands up easily.
SIZE: 6″
NAME: Collenia kona
AGE: Paleoproterozoic Era 2.3 billion years
UNIT: Kona Formation
SITE: Kona Hills, Michigan
DATE: 2025
BY: Jon Kramer & Julie MartinezDocumentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$130.00Kona Dolomite (KONA28)
$130.00 -
Three Fish GR304
Notes specific to this specimen:
Three Fossil Fish
NAME: Knightia, Dyplomystus and various other species
AGE: Eocene Epoch / 50 million years
UNIT: Green River Formation
SITE: Kemmerer, WyomingSize: 6″ x 8″
Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$135.00Three Fish GR304
$135.00
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