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Rainbow Stromatolite (RS4)
Notes specific to this specimen: Another one of the original discovery pieces, collected by us in August 2025. Unique honey-color colonies with unusual dark laminae. Never seen anything like this!
SIZE: 2″x 2″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.
$165.00Rainbow Stromatolite (RS4)
$165.00 -
Crystalized Welks (W2)
Notes specific to this specimen: Fossil welks are much rarer than the clams found at Rucks Pit and most of them have no crystals. But, when you do find a nice crystal-line specimen, there’s nothing like it in the world! This is a single welk with a natural opening on its dorsal (top) allowing you to see the crystal lining of the shell and the gray sparite “floor” that was the sediment which partially filled the shell after the animal had died. Very unusual.
SIZE: 4″
NAME: Mercenaria permagna
AGE: Pleistocene 2 million years
UNIT: Nashua Formation
SITE: Okeechobee County, FloridaDocumentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$165.00Crystalized Welks (W2)
$165.00 -
Cerdito Prospect Rift Crystals (CP11)
Notes specific to this specimen: White druzy quartz with just a hint of purple dominates top of this specimen with some clear crystals as well. Sides show multiple healed fractures. Take a look at the cut bottom and you’ll see the very graphic splitting of the matrix and the subsequent infilling.
SIZE: 6″ x 3″ x 3″
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.
$180.00 -
Agatized Algae (AA3)
Notes specific to this specimen: This is a piece of a much larger specimen. While it is not complete, the color and texture of this piece is incredible. Beautiful, multicolored bubblegum agate all over it!
SIZE: 4″x 2″x 2″
NAME: Undescribed species
AGE: Jurassic Period- 165 million years
UNIT: Curtis Formation
SITE: Emery County, Utah
DATE: 2010Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin.
$185.00Agatized Algae (AA3)
$185.00 -
Agatized Algae (AA7)
Notes specific to this specimen: Small but complete algal ball – a round specimen with great bubblegum agate skin on the upper (convex) side and a nice multicolored carnelian agate underside (convex).
SIZE: 4″x 3″x 2″
NAME: Undescribed species
AGE: Jurassic Period- 165 million years
UNIT: Curtis Formation
SITE: Emery County, Utah
DATE: 2010Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin.
$185.00Agatized Algae (AA7)
$185.00 -
Kona Dolomite (KONA10)
Notes specific to this specimen: This is an excellent sliced section showing multiple stromatolite colonies with distinct layers (laminae). The clear layering is unusual for this slightly metamorphosed material. It has a smooth back and a flat bottom so it stands up nicely.
SIZE: 6″ x 3″ x 1″
NAME: Collenia kona
AGE: Paleoproterozoic Era 2.3 billion years
UNIT: Kona Formation
SITE: Kona Hills, Michigan
DATE: 2023Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin.
$185.00Kona Dolomite (KONA10)
$185.00 -
Gypsum, Variety Selenite (AG1)
Notes specific to this specimen: Large crystals with nearly optical clarity. Modified rhomboid shape with nice clear crystal and no inclusions. Mirror shine faces, no scratches.
Size: 7″ x 3″ X 1″
NAME: Gypsum, variety Selenite
AGE: Triassic Period, 240 million years
UNIT: Moenkopi Formation
SITE: Mohave County, Arizona
DATE: 2019Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$185.00Gypsum, Variety Selenite (AG1)
$185.00 -
Gypsum, Variety Selenite (AG3)
Notes specific to this specimen: Clean large rhomboidal crystal shape that is common in these crystals but not found in this size with this clean quality. Nice clear crystal with no inclusions. Mirror shine faces, no scratches.
Size: 6″ x 3″ X 1″
NAME: Gypsum, variety Selenite
AGE: Triassic Period, 240 million years
UNIT: Moenkopi Formation
SITE: Mohave County, Arizona
DATE: 2019Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$185.00Gypsum, Variety Selenite (AG3)
$185.00 -
Agatized Coral (AC12)
Note: This is a very nice cut and polished pair, mounted on another agatized coral piece that has a flat bottom. Beautiful carnelian agate. An attractive and informative display card accompanies the specimen.
SIZE: 3″x 6″
$185.00Agatized Coral (AC12)
$185.00 -
Agatized Coral (AC10)
Note: This is a very nice cut and polished pair, mounted on another agatized coral piece that has a flat bottom. Beautiful carnelian agate. An attractive and informative display card accompanies the specimen.
NOTE: Unusual piece with preserved coral structures. Cut and polished face. An attractive and informative display card accompanies the specimen.
SIZE: 5″x 7″
$210.00Agatized Coral (AC10)
$210.00 -
Agatized Algae (AA8)
Notes specific to this specimen: Strange shape with a variety of colors. This is one of the more unusual specimens we’ve seen – it contains relic cracks from the collapse of the original structure and a variety of textures and colors. Which end was up? We cannot tell on this one! Zoom in on the bubbly side – it’s awesome!
SIZE: 5″x 3″x 2″
NAME: Undescribed species
AGE: Jurassic Period- 165 million years
UNIT: Curtis Formation
SITE: Emery County, Utah
DATE: 2010Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin.
$220.00Agatized Algae (AA8)
$220.00 -
Kona Dolomite (KONA9)
Notes specific to this specimen: This is an excellent sliced section showing multiple stromatolite colonies with distinct layers (laminae). The clear layering is unusual for this slightly metamorphosed material. It has a smooth back and a flat bottom so it stands up nicely.
SIZE: 6″ x 3″ x 1″
NAME: Collenia kona
AGE: Paleoproterozoic Era 2.3 billion years
UNIT: Kona Formation
SITE: Kona Hills, Michigan
DATE: 2023Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an attractive and informative display card accompanies the specimen.
$245.00Kona Dolomite (KONA9)
$245.00
