Cerdito Prospect Rift Crystals
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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 (CP2)
Notes specific to this specimen: Incredible combination of small clear quartz crystals with purple fluorite crystals over top of botryoidal green fluorite. Nice standup piece has sawn-flat bottom and back showing the dynamic cracks and infilling produced by the North American Midcontinent Rift which happened about 1.1 billion years ago. Because of the fluorite, it fluoresces very strong purple/blue.
Documentation: This authentic mineral specimen comes with a Certificate of Authenticity and Origin.
$525.00 -
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 -
Minnesota Thomsonite (MNT 001)
Notes specific to this specimen: Rare dense accumulation of nodules in matrix, from what was known as a “Bonanza” zone in the “Pink Pit”. Colors varied from pit to pit in the mine. The Pink Pit was the largest and most accessible pit and was right in the center of the Thomsonite Mine, adjacent to the parking area. On rare occasions we would mine into a “Bonanza” which was a zone especially dense with nodules. This piece has a sawn flat bottom with smoothed and polished front and natural rough back. It has a very bright, large single nodule on the top, sticking out of the matrix with a brilliant polish. It could be removed and cut for jewelry.
Size: 2.5″ x 3″ x 1.5″
Name: Thomsonite
Age: Mesoproterozoic Era, 1.1 billion years
Unit: Terrace Point Basalt
Site: Alley Agate Shop Thomsonite Mine Cook County, Grand Marais, MInnesota
Excavated: circa 1981
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.
$285.00Minnesota Thomsonite (MNT 001)
$285.00 -
Minnesota Thomsonite (MNT 002)
Notes specific to this specimen: Rare dense accumulation of nodules in matrix, from what was known as a “Bonanza” zone in the “Pink Pit”. Colors varied from pit to pit in the mine. The Pink Pit was the largest and most accessible pit and was right in the center of the Thomsonite Mine, adjacent to the parking area. On rare occasions we would mine into a “Bonanza” which was a zone especially dense with nodules. This piece has a sawn flat bottom with smoothed and polished front and natural rough back. It has three very bright, large nodules exposed with high polish on the front face. They could be removed and cut for jewelry.
Size: 3″ x 4″ x 1.5″
Name: Thomsonite
Age: Mesoproterozoic Era, 1.1 billion years
Unit: Terrace Point Basalt
Site: Alley Agate Shop Thomsonite Mine Cook County, Grand Marais, MInnesota
Excavated: circa 1981
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.
$485.00Minnesota Thomsonite (MNT 002)
$485.00
