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Agatized Coral (AC6)
These unique fossils are preserved corals that lived in large reef systems in Florida and Georgia about 34 million years ago. After the corals died, they were buried in deep sediments where the original corallite structures began to erode away. In some cases, this resulted in hollow cavities that were then coated in translucent agate, forming carnelian geodes. In others, the agate replaced the solids and retained images of the coral structures. We are the oldest and most experienced source for these unique fossils. Our teams have been SCUBA diving for these corals since the mid 1970s.
NOTE: This is a very nice cut and polished pair, mounted on another agatized coral that has a flat bottom. An attractive and informative display card accompanies the specimen.
SIZE: 4″x 4″x 6″
* Shipping includes packaging, insurance, and ground transport in the continental US. Inquire about shipping outside US.
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Agatized Coral (AC7)
These unique fossils are preserved corals that lived in large reef systems in Florida and Georgia about 34 million years ago. After the corals died, they were buried in deep sediments where the original corallite structures began to erode away. In some cases, this resulted in hollow cavities that were then coated in translucent agate, forming carnelian geodes. In others, the agate replaced the solids and retained images of the coral structures. We are the oldest and most experienced source for these unique fossils. Our teams have been SCUBA diving for these corals since the mid 1970s.
NOTE: A very nice multi-chambered piece cut and polished face. This specimen is mounted on native Suwanee Limestone – which is the matrix material these specimens weather out of. No other preparator mounts these speciemns on their native stone. An attractive and informative display card accompanies the specimen.
SIZE: 4″x 4″x 5″
* Shipping includes packaging, insurance, and ground transport in the continental US. Inquire about shipping outside US.
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Agatized Coral (AC8)
These unique fossils are preserved corals that lived in large reef systems in Florida and Georgia about 34 million years ago. After the corals died, they were buried in deep sediments where the original corallite structures began to erode away. In some cases, this resulted in hollow cavities that were then coated in translucent agate, forming carnelian geodes. In others, the agate replaced the solids and retained images of the coral structures. We are the oldest and most experienced source for these unique fossils. Our teams have been SCUBA diving for these corals since the mid 1970s.
NOTE: A very nice multi-chambered piece cut and polished face. This specimen is mounted on native Suwanee Limestone – which is the matrix material these specimens weather out of. No other preparator mounts these speciemns on their native stone. An attractive and informative display card accompanies the specimen.
SIZE: 4″x 4″x 5″
* Shipping includes packaging, insurance, and ground transport in the continental US. Inquire about shipping outside US.
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Agatized Coral (AC9)
These unique fossils are preserved corals that lived in large reef systems in Florida and Georgia about 34 million years ago. After the corals died, they were buried in deep sediments where the original corallite structures began to erode away. In some cases, this resulted in hollow cavities that were then coated in translucent agate, forming carnelian geodes. In others, the agate replaced the solids and retained images of the coral structures. We are the oldest and most experienced source for these unique fossils. Our teams have been SCUBA diving for these corals since the mid 1970s.
NOTE: Beautiful multi-chambered piece cut and polished face. An attractive and informative display card accompanies the specimen.
SIZE: 5″x 3″x 5″
* Shipping includes packaging, insurance, and ground transport in the continental US. Inquire about shipping outside US.
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Cerdito Prospect Rift Crystals (CP10)
Notes specific to this specimen: Both smokey quartz and amethyst crowded on the front face. Beautiful fracture infills showing on both sides. Also has a nice amethyst-lined hollow on the back with amethyst veins all over. This piece has a flat bottom so it stands up and displays very nicely. Take a look at the cut bottom and you’ll see the very graphic splitting of the matrix and the subsequent infilling. Fantastic piece!
SIZE: 5″ x 4″ x 6″
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.
$625.00 -
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 -
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 -
Cerdito Prospect Rift Crystals (CP13)
Notes specific to this specimen: Cool combination piece dominated by a cavity of nice light smokey quartz crystals encased in an amethyst vein. Note: One of the large crystals has a broken tip. But the rest is clean and gemmy. This piece has a cut-flat bottom so it stands up and displays very nicely. Take a look at the cut bottom and you’ll see the very graphic splitting of the matrix and the subsequent infilling with deeper smokey quartz.
SIZE: 4″ x 4″ x 4″
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.
$420.00 -
Cerdito Prospect Rift Crystals (CP14)
Notes specific to this specimen: Cool combination of nice light smokey quartz crystals and deep amethyst crystals in the same vein. Nice healed fracturing evident on the edge. This piece has a cut-flat bottom so it stands up and displays very nicely. Take a look at the cut bottom and you’ll see the very graphic splitting of the matrix and the subsequent infilling with white quartz and citrine.
SIZE: 6″ x 3″ x 4″
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.
$385.00 -
Cerdito Prospect Rift Crystals (CP7)
Notes specific to this specimen: Face has a coating of really nice smokey quartz crystals with some isolated clear and amethyst mixed in. Beautiful healed fracture infills showing on both sides. Also has a nice amethyst-lined hollow on the back with associated smokey quartz. This piece has a cut-flat bottom so it stands up and displays very nicely. Take a look at the cut bottom and you’ll see the very graphic splitting of the matrix and the subsequent infilling. This is a fantastic piece!
SIZE: 3″ x 3″ x 4″
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.
$625.00 -
Crystal Clam Wall (OKW7)
Notes specific to this specimen: One of a kind unbelievable specimen! This was dug out in 2023 as several pieces that have been reconstructed into a continuous matrix piece with breathtaking beauty. This is the largest crystal clam matrix specimen in the world. There are over 50 crystalized fossil clams, two crystalized conchs, along with scallops, olive shells, welks, corals and hundreds of other fossil shells in this magnificent museum piece.
HOW THEY FORMED
The area around Lake Okeechobee, Florida was a shallow sea about 2 million years ago. These clams lived in the sandy mud near the shoreline at the time. Sudden storm events – such as hurricanes and tropical storms – periodically buried the area under deep sediments, trapping the clams and other shellfish that lived there. As their bodies decayed, the process left behind cavities in the shells. With the heat and pressure that accompanied the pile-up of sediments, the original shell material (aragonite) became unstable and began to dissolve away. As it happened this provided the elements necessary to grow pure calcite crystals in the open spaces within some of the shells. It has a sturdy backing of plywood with an aluminum frame allowing this piece to be hung either vertically or horizontally. It’s currently on display at 1889 Studios, in the Uptown Rapid (formerly Rushmore Mall) complex in Rapid City, SD. Contact us for shipping options.SIZE: 3′ x 6′ x 10″
NAME: Mercenaria permagna
AGE: Plio-Pleistocene – 2 million years
UNIT: Nashua Formation
SITE: Okeechobee County, Florida
DATE: 2023Documentation: This authentic fossil specimen comes with a Certificate of Authenticity and Origin. In addition, an informative display card accompanies the specimen
$12,500.00Crystal Clam Wall (OKW7)
$12,500.00 -
Crystalized Clam (OK1)
Crystalized fossil clams like this are exceptionally rare. These clams lived in a shallow sea that covered most of Florida 2 million years ago. A sudden storm event buried the clams, trapping cavities inside. When the shells began to dissolve, it provided the material necessary to grow calcite crystals in the open spaces. These unusual fossils are known from only one site, an old quarry near Lake Okeechobee. The quarry played out and flooded in 2007. We excavated this in 2023. An attractive and informative display card accompanies the specimen.
Notes specific to this specimen: This complete clam is packed full with honey calcite. There are some fantastic radial calcite crystals amidst a solid honey calcite matrix. The back is a partially recrystallized shell. This is a singularly unique find.
SIZE: 5″x 3″x 2″
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.
$440.00Crystalized Clam (OK1)
$440.00
