All Products
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Rainbow Stromatolite (RS1)
Notes specific to this specimen: This is one of the original discovery pieces, collected by us in August 2025. It is characteristic of all the variety of colors found in this site. We’ve never seen such a variety of colors of stromatolite from a single site. It reminded us of all the colors of Arizona petrified wood – known as “Rainbow Wood” – and this became the source for our naming this new discovery “Rainbow Stromatolite”.
SIZE: 2″x 4″x 1.5″
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.
$285.00Rainbow Stromatolite (RS1)
$285.00 -
Cerdito Prospect Rift Crystals (CP12)
Notes specific to this specimen: Nice light-purple amethyst vein running diagonally through this piece. Has great white quartz healed fracture veins on the side and another amethyst cavity in the back. There’s even a small one on the cut bottom! This piece has a flat bottom so it stands up and displays very nicely. Take a look at the bottom and you’ll see the very graphic splitting of the matrix and the subsequent infilling.
SIZE: 4″ x 4″ x 5″
Quartz – Amethyst, Smokey, Citrine, Clear
AGE: Mesoproterozoic Era – 1.1 billion years
UNIT: Rove Formation
SITE: Thunder Bay, Ontario, Canada
DATE: 2022Documentation: This authentic mineral specimen comes with a Certificate of Authenticity and Origin.
$460.00 -
Volcanic Bomb (EB4)
Notes specific to this specimen: Large classic plump fusiform bomb with great aerodynamic striations. It looks like it encountered another in flight but did not complete the merging with it. Natural breaks reveals chalcedony interior which fluoresces a vibrant green. A great specimen.
SIZE: 10″ x 5″ x 4″
NAME: Various forms
AGE: Pliocene Epoch- 5 million years
UNIT: Banbury Formation
SITE: Elko County, NevadaDATE: 2020
Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin.
$265.00Volcanic Bomb (EB4)
$265.00 -
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″Â
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 -
Fossil Sand Dollar and Clam (KH23)
Notes specific to this specimen: An excellent large polished Dendraster sand dollar with great color pattern, along with some unpolished Psuedocardium clams, plus another sand dollar that is unpolished. Both sand dollars show very cool natural petroleum stains. All mounted on native matrix with a flat bottom ready to display. Comes with an attractive information card.
Size: 4″x5″x2″Â
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.
$165.00 -
Fossil Sand Dollar and Clam (KH22)
Notes specific to this specimen: A super-nice large polished Dendraster sand dollar with great color pattern, along with one polished Psuedocardium clam beside a really cool unpolished clam with gnarly original shell material. All mounted on native matrix with a flat bottom ready to display. Comes with an attractive information card.
Size: 3″x4″x2″Â
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.
$185.00 -
Fossil Sand Dollar and Clam (KH21)
Notes specific to this specimen: This fantastic piece has a super-nice large polished Dendraster sand dollar with great color pattern, along with a complete polished Psuedocardium clam, plus two unpolished Dendrasters. All mounted on native matrix with a flat bottom ready to display. Comes with an attractive information card.Â
Size: 4″x5″x3″Â
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.
$245.00 -
Fossil Sand Dollar (KH11)
Notes specific to this specimen: This fantastic piece is a super-nice large Dendraster sand dollar with a great color pattern that’s been influenced by natural petroleum which occurs in these deposits. Polished only on the top – back is rough.  Comes boxed with an attractive information card.
SIZE: 2″
NAME: Dendraster (sand dollar)
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.
$55.00Fossil Sand Dollar (KH11)
$55.00 -
Kona Dolomite (KONA36)
Notes specific to this specimen: We cut and polish these particular Kona Dolomite pieces to showcase the uniqueness of this material. Here the front is cut and polished. It sits upright on a flat base with a slight angle for optimal viewing. The back is left rough. Superb banding from the stromatolitic layers. Great conversation piece of one of the world’s oldest fossils.
SIZE: 5″ Long
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.
$85.00Kona Dolomite (KONA36)
$85.00 -
Kona Dolomite (KONA35)
Notes specific to this specimen: We cut and polish these particular Kona Dolomite pieces to showcase the uniqueness of this material. Here the front is cut and polished. It sits upright on a flat base with a slight angle for optimal viewing. The back is left rough.  This piece has beautiful coloration.Great conversation piece of one of the world’s oldest fossils.
SIZE: 3″ High
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.
$65.00Kona Dolomite (KONA35)
$65.00 -
Kona Dolomite (KONA34)
Notes specific to this specimen: We cut and polish these particular Kona Dolomite pieces to showcase the uniqueness of this material. Here the front is cut and polished. It sits upright on a flat base with a slight angle for optimal viewing. The back is left rough.  This piece has beautiful coloration.Great conversation piece of one of the world’s oldest fossils.
SIZE: 3″ High
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.
$75.00Kona Dolomite (KONA34)
$75.00 -
Kona Dolomite (KONA33)
Notes specific to this specimen: We cut and polish these particular Kona Dolomite pieces to showcase the uniqueness of this material. Here the front is cut and polished. It sits upright on a flat base with a slight angle for optimal viewing. The back is left rough.  This piece has beautiful coloration.Great conversation piece of one of the world’s oldest fossils.
SIZE: 3″ HighNAME: 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.
$85.00Kona Dolomite (KONA33)
$85.00
