Sold20151320ct Scarce Large Opalized Ammonite Cut HalfExcellent natural specimen; tens of millions of years oldSee Sold Price
Sold20151415ct Scarce Large Opalized Ammonite Cut HalfExcellent natural specimen; tens of millions of years oldSee Sold Price
Sold2016795ct Scarce Large Opalized Ammonite Cut HalfExcellent natural specimen; tens of millions of years oldSee Sold Price
Sold2016985ct Scarce Large Opalized Ammonite Cut HalfExcellent natural specimen; tens of millions of years oldSee Sold Price
Sold2023Natural History - Cut and Polished Fossil AmmoniteJurassic Period, 199-145 million years B.P. A pair of cut and polished fossil ammonite halves, each displaying the gas chambers; possibly Cleoniceras sp. 172 grams total, 95-97 mm (3 3/4 - 3 7/8 in.).See Sold Price
Sold20161910ct Opalized Crystalized Lg Ammonite Cut HalfExcellent large 250m+ year old specimenSee Sold Price
Sold20161600ct Opalized Crystalized Lg Ammonite Cut HalfExcellent large 250m+ year old specimenSee Sold Price
Sold2022Cut and Polished Fossil AmmoniteCretaceous Period, 145-65 million years B.P. A cut and polished Phylloceras velledae ammonite in two halves, displaying the distinctive pattern of the cross-section chambers; held in a white card collSee Sold Price
Sold2022Cut and Polished Fossil AmmoniteCretaceous Period, 145-65 million years B.P. A cut and polished Phylloceras velledae ammonite in two halves with iridescent surfaces; held in a white card collector's tray. 231-254 grams, 10.7 cm widtSee Sold Price
Sold2022Cut and Polished Fossil AmmoniteJurassic Period, 172-168 million years B.P. A cut and polished ammonite in two halves, distinctive cross section chambers filled with crystals, some iridescence to outer surfaces. 275 grams total, 10.See Sold Price
Sold2024Natural History - Cut and Polished Fossil Ammonite PairCretaceous Period, circa 113-100 million years B.P. Comprising a polished Cleoniceras sp. ammonite cut into halves and showing the internal crystallisation of the gas chambers. 124 grams total, 69 mmSee Sold Price
Sold2021Cut and Polished Fossil Ammonite PairCretaceous Period, Albian Stage, 113-100 million years BP. A cut and polished Cleoniceras sp. ammonite in two halves, displaying the distinctive pattern of the cross-section chambers. 274 grams total,See Sold Price
Sold2022Large Polished Fossil Ammonite PairCretaceous Period, 145-65 million years B.P. A matching pair of cut and polished fossil Cleoniceras sp. ammonite halves, displaying the distinctive pattern of the chambers. 765 grams total, 15.1 cm eaSee Sold Price
Sold2019Natural History Fossil Fish and Ammonite GroupCretaceous Period, 200-65 million years BP. Group comprising: a small ammonite, cut and polished in two halves, with two small fossil fish specimens, in matrix. 618 grams total, 3.2-14.7cm (1 1/4 - 5See Sold Price
Sold2022Ammonite Fossil Group - 37 [147886]6 cut and polished ammonite halves to visualize chambers, on cards, 1.5 x 1.25 x 0.25" to 1.25 x 1.0 x 0.25"; 1 entire with label identifying as Hoploscaphite from Fox Hills formation, South Dakota, oSee Sold Price
Sold2022Polished Fossil Goniatite GroupDevonian Period, 417-354 million years B.P. A group of three cut and polished goniatite ammonite halves, including possible Orthoceras sp. specimen in one. 437 grams total, 80-93 mm (3 1/8 - 3 5/8 in.See Sold Price
Sold2023POLISHED AMMONITE FOSSIL HALFPOLISHED AMMONITE FOSSIL HALF - (F226) Height: 4 in. by Width: 5 in. by Depth: 1See Sold Price
Sold2016Opalized Ammonite fossilAmazing Opalized Ammonite rainbow color reflections. From Madagascar. size 3" No Reserve Shipping This item ships from Protland, OR.See Sold Price
Sold2017Opalized ammonite fossil polishedOpalized rainbow sheen ammonite with high gloss - good condition for ancient fossil -about 250 million years old - 2 x 1 1/2 "See Sold Price
Sold2021Stunning Opalized Ammonite Fossils w/ Pyrite**First Time At Auction** Ancient seas, Russia, Jurassic period, 201.3 to 145 Million years ago. A stunning collection of 8 ammonite fossils from the Quenstedtoceras genus that have been grouped to foSee Sold Price
Sold2021(2) LARGE AMMONITE FOSSIL HALVESDimensions: L 8.75" x W 7.5" x D 1" Condition: Showing light wear consistent with age and display including a few nicks to edges, natural surface imperfections and hairlines.See Sold Price
Sold2022ASSORTED OPALIZED AMMONITE FOSSILS - LOT OF 19ASSORTED OPALIZED AMMONITE FOSSILS - LOT OF 19 Assorted polished opalized ammonite fossils - lot of 19. Condition: Very fine. Mineral specimensSee Sold Price
Jun 30Heartland Artifact Auctions Inc4 3/4" x 3 7/8" Fossil Ammonite, Sliced and Polished, Several areas of Crystalization, GorgeousUS$10
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![Ammonite Fossil Group - 37 [147886]: 6 cut and polished ammonite halves to visualize chambers, on cards, 1.5 x 1.25 x 0.25" to 1.25 x 1.0 x 0.25"; 1 entire with label identifying as Hoploscaphite from Fox Hills formation, South Dakota, o](https://p1.liveauctioneers.com/2699/243928/126480659_1_x.jpg?height=310&quality=70&version=1649517249)
