Results for “Fossil Specimen”

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29.75 gram Natural Rough Cut Emerald Specimen: Item is the exact item in the image - Bidder is responsible for all value grade determination - Please review all terms and conditions prior to placing any bids- All sales are final and all invoices d

5 days Left

29.75 gram Natural Rough Cut Emerald Specimen

Antique Finder Services

Est. $15-$20

Purple Dyed Agate End Stand Up - Specimen: Item is the exact item in the image - Items have all natural features, characteristics, natural compositional degradation. Bidder is responsible for all value and grade determination - Please review a

5 days Left

Purple Dyed Agate End Stand Up - Specimen

Antique Finder Services

Est. $15-$20

Fine Banded Agate Specimen w/ Druzy Geode: Item is the exact item in the image - Bidder is responsible for all value and grade determination - Please review all terms and conditions prior to placing any bids- All sales final - all bids due at

5 days Left

Fine Banded Agate Specimen w/ Druzy Geode

Antique Finder Services

Est. $20-$24

Purple Dyed Agate End Stand Up - Specimen: Item is the exact item in the image - Items have all natural features, characteristics, natural compositional degradation. Bidder is responsible for all value and grade determination - Please review a

5 days Left

Purple Dyed Agate End Stand Up - Specimen

Antique Finder Services

Est. $15-$20

A MASSIVE APOPHYLLITE SPECIMEN WITH STILBITE: 28" LONG AND 11.5" WIDE HERE IS ONE OF THE MOST GORGEOUS APOPHYLLITE SPECIMENS WITH STILBITE THAT I HAVE EVER HAD

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A MASSIVE APOPHYLLITE SPECIMEN WITH STILBITE

J. Greenstein & Co., Inc.

A MASSIVE APOPHYLLITE SPECIMEN WITH STILBITE: 14.5" LONG AND 13.5" WIDE HERE IS ONE OF THE MOST GORGEOUS APOPHYLLITE SPECIMENS WITH STILBITE THAT I HAVE EVER HAD

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A MASSIVE APOPHYLLITE SPECIMEN WITH STILBITE

J. Greenstein & Co., Inc.

Fine Large Ancient Ammonite Specimen: Gorgeous ancient fossilized ammonite section cut in half to expose beautiful crystallizations and ancient patina throughout. Incredible all natural earthen tones including brown, caramel, ochre, red a

Feb 19, 2026

Fine Large Ancient Ammonite Specimen

Inspired Auctions

Est. $300-$400

15.81 Carats Boulder Opal Rough - Natural Winton - 15.8 x 13.3 x 6.5 mm, 26XK: This striking boulder opal rough from Winton showcases brilliant veins of electric blue and green fire, naturally embedded within its rich brown ironstone matrix. The vivid play-of-color flashes brigh

2 days Left

15.81 Carats Boulder Opal Rough - Natural Winton - 15.8 x 13.3 x 6.5 mm, 26XK

Est. $30-$60

Green Tourmaline Crystals on Cleavelandite Var Albite Mineral Specimen: Green Tourmaline Crystals on Cleavelandite Var Albite Mineral Specimen Weight:76g Length:2mm Width:1.8mm Height:2.5mm View Photos For Further Details

Mar 05, 2026

Green Tourmaline Crystals on Cleavelandite Var Albite Mineral Specimen

Weatherham Estate Treasures

Est. $80-$160

20g Rare Natural Sphalerite Quartz Crystal Cluster Mineral Specimen: 20g Rare Natural Sphalerite Quartz Crystal Cluster Mineral Specimen Weight: 20g Length: 18mm Width: 16mm Height: 51mm View Photos For Further Details

Mar 05, 2026

20g Rare Natural Sphalerite Quartz Crystal Cluster Mineral Specimen

Weatherham Estate Treasures

Est. $40-$80

Gorgeous Large Ancient Ammonite Specimen: Wonderful well preserved ancient fossilized ammonite cut and polished to expose thousands of crystals and dozens of natural colors throughout. Brown, caramel, grey, and snow white among other natural

Feb 19, 2026

Gorgeous Large Ancient Ammonite Specimen

Inspired Auctions

Est. $300-$400

Pre-Colombian Fossilized Sand Dollar: Fossilized sand dollar, approximately 2x2 inches. Displays a distinct star-shaped pattern on its surface. A unique natural history specimen.

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Pre-Colombian Fossilized Sand Dollar

Williamson Auction Gallery

20mm Nanotyrannus Tooth Specimen: 20mm Nanotyrannus Tooth Specimen This authentic Nanotyrannus tooth is at the heart of an ongoing scientific debate within the Tyrannosauridae family. Discovered in the Late Cretaceous Hell Creek Forma

Feb 17, 2026

20mm Nanotyrannus Tooth Specimen

Weatherham Estate Treasures

Est. $550-$650

Natural White Coral Tree, White Coral, Coral Tree, Coral Reef Decor, White Coral Reef, Natural Sea C: A striking natural coral specimen, featuring an intricate branching structure with dense, organic formations in soft ivory-white tones. The piece displays a highly textured surface with fine granular

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Natural White Coral Tree, White Coral, Coral Tree, Coral Reef Decor, White Coral Reef, Natural Sea C

Yorkville Auction Appraisals

56G Natural Blue Quartz Crystal with Stunning Texture - Healing Mineral Specimen: 56G Natural Blue Quartz Crystal with Stunning Texture - Healing Mineral Specimen Discover the beauty of this 56g natural blue quartz crystal, featuring captivating textures and vibrant hues. Perfect f

Mar 05, 2026

56G Natural Blue Quartz Crystal with Stunning Texture - Healing Mineral Specimen

Weatherham Estate Treasures

Est. $90-$150

Natural Polished Red Rhodonite Quartz Crystal Palm Stone Mineral Specimen: 51g Natural Polished Red Rhodonite Quartz Crystal Palm Stone Mineral Specimen Weight:51g Length:43mm Width:36mm Height:17mm View Photos For Further Details

Mar 05, 2026

Natural Polished Red Rhodonite Quartz Crystal Palm Stone Mineral Specimen

Weatherham Estate Treasures

Est. $60-$120

20g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen: 20g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen Weight: 20g Length:62mm Width:44mm Height:3m View Photos For Further Details

Mar 05, 2026

20g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen

Weatherham Estate Treasures

Est. $60-$120

37g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen: 37g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen Weight: 37g Length:81mm Width:58mm Height:4m View Photos For Further Details

Mar 05, 2026

37g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen

Weatherham Estate Treasures

Est. $60-$120

43g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen: 43g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen Weight: 43g Length:94mm Width:48mm Height:5m View Photos For Further Details

Mar 05, 2026

43g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen

Weatherham Estate Treasures

Est. $60-$120

17.6g Natural chalcopyrite and calcite mineral specimens: 17.6g Natural chalcopyrite and calcite mineral specimens Weight: 17.6g Length:27mm Width:20mm Height:23mm View Photos For Further Details

Mar 05, 2026

17.6g Natural chalcopyrite and calcite mineral specimens

Weatherham Estate Treasures

Est. $60-$120

36g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen: 36g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen Weight: 36g Length:83mm Width:53mm Height:4mm View Photos For Further Details

Mar 05, 2026

36g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen

Weatherham Estate Treasures

Est. $60-$120

24g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen: 24g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen Weight: 24g Length:80mm Width:48mm Height:3m View Photos For Further Details

Mar 05, 2026

24g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen

Weatherham Estate Treasures

Est. $60-$120

61g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen: 61g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen Weight: 61g Length:100mm Width:63mm Height:5m View Photos For Further Details

Mar 05, 2026

61g Natural agate Agate Geode Slab/Slice quartz crystal mineral specimen

Weatherham Estate Treasures

Est. $60-$120

52g Natural Turtle Back Stone Egg Shape Dragon Crystal Crack Mineral specimen: 52g Natural Turtle Back Stone Egg Shape Dragon Crystal Crack Mineral specimen Weight: 52g Length: 40mm Width: 32mm Height: 31mm View Photos For Further Details

Mar 05, 2026

52g Natural Turtle Back Stone Egg Shape Dragon Crystal Crack Mineral specimen

Weatherham Estate Treasures

Est. $60-$120

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