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Shadow Box Display of Rocks, Minerals, and Possible Fossils in Wooden Frame: Various rocks, minerals, and possible fossils presented in a shadow box with overall dimensions of 25 1/2 inches high, 19 1/2 inches wide, and 4 1/4 inches deep. This display includes geodes, mineral

Shadow Box Display of Rocks, Minerals, and Possible Fossils in Wooden Frame

Lodestar Auctions

Est. —

US$25

Clear Quartz Crystal Cluster Mineral Specimen: Clear Quartz Crystal Cluster Mineral Specimen, on an oak wood plinth. Overall: 6.75" H x 10" W x 10" D. Provenance: From an East 53rd Street Collection. Keywords: Gemstones, Rock crystal, Geology, Gem

5 days Left

Clear Quartz Crystal Cluster Mineral Specimen

Auctions at Showplace

Est. US$400-US$600

Super Rare Fossilized Articulated Cave Bear: 50.41 Exporting anything cave bear was restricted in 2010 by the Romania government making any specimen VERY hard to obtain ! This piece is over 24,000 years old Romania

Mar 21, 2026

Super Rare Fossilized Articulated Cave Bear

Circle M Auctions

Est. US$5-US$1,000

ASSORTED QUARTZ CLUSTER MINERAL / CRYSTAL SPECIMENS, LOT OF THREE: ASSORTED QUARTZ CLUSTER MINERAL / CRYSTAL SPECIMENS, LOT OF THREE, each of a similar form with numerous points. Collected in the 20th century. Largest approximate 4" H, 8 1/2" x 6" OA.

4 days Left

ASSORTED QUARTZ CLUSTER MINERAL / CRYSTAL SPECIMENS, LOT OF THREE

Jeffrey S. Evans & Associates

Est. US$80-US$120

ASSORTED QUARTZ / GARNET AND OTHER MINERAL SPECIMENS, LOT OF 13: ASSORTED QUARTZ / GARNET AND OTHER MINERAL SPECIMENS, LOT OF 13, most examples on matrix, including a Herkimer diamond with other smaller Herkimer diamonds on the host rock, amethyst crystals on

4 days Left

ASSORTED QUARTZ / GARNET AND OTHER MINERAL SPECIMENS, LOT OF 13

Jeffrey S. Evans & Associates

Est. US$50-US$100

ASSORTED AGATE AND OTHER ROCK / MINERAL SPECIMENS, UNCOUNTED LOT: ASSORTED AGATE AND OTHER ROCK / MINERAL SPECIMENS, UNCOUNTED LOT, including a large block of chert, two pieces of "Lake Superior" agate (as identified by the consignor), a number of pie

4 days Left

ASSORTED AGATE AND OTHER ROCK / MINERAL SPECIMENS, UNCOUNTED LOT

Jeffrey S. Evans & Associates

Est. US$50-US$100

Large Mixed Mineral Scholar's Rock: Large scholar's rock specimen on custom stand. Mixed composition of minerals give it unique and beautiful coloring.11.75 x 16 x 4.5 (including stand)

Mar 17, 2026

Large Mixed Mineral Scholar's Rock

Est. US$200-US$400

Tiger Eye, Amethyst, Pyrite & Others Stones 265pcs: Mixed mineral and gemstone collection of approximately 265 polished and rough specimens including amethyst, pyrite, fluorite, quartz varieties, agate geodes, tiger eye, sodalite, calcite, celestite, a

Mar 12, 2026

Tiger Eye, Amethyst, Pyrite & Others Stones 265pcs

MiddleManBrokers Inc.

Est. US$1-US$1,000

4 Fossilized Maiasaura Dinosaur Vertebrae On Display Stand: 31.69 Maiasaura was a type of Hadrosaur or Duck Billed Dinosaur. These 4 Caudal Vertebrae from the same Dinosaur were found in The Two Medicine Formation in Teton County Montana. As with most specimen

Mar 21, 2026

4 Fossilized Maiasaura Dinosaur Vertebrae On Display Stand

Circle M Auctions

Est. US$5-US$1,000

Rare Malachite Stalactite Formation: Rare malachite stalactite specimen from the DR Congo. 7” x .5.75” x 2”. 3 pounds, 5 ounces.

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Rare Malachite Stalactite Formation

Fossils & Gemstones of Houston

ASSORTED AGATE GEODE AND SLICE ROCK SPECIMENS, UNCOUNTED LOT: ASSORTED AGATE GEODE AND SLICE ROCK SPECIMENS, UNCOUNTED LOT, most of a similar form and style with one being mounted as a belt buckle. Collected in the 20th century. Largest 5" x 3 1/2". Pr

4 days Left

ASSORTED AGATE GEODE AND SLICE ROCK SPECIMENS, UNCOUNTED LOT

Jeffrey S. Evans & Associates

Est. US$50-US$80

Amethyst Cathedral: Amethyst cathedral geode specimen height 11 in. x width 10 in. x depth 8 in. Provenance: Property from a home in San Antonio, Texas

1 day Left

Amethyst Cathedral

Vogt Auction Texas

Est. US$200-US$400

Ancient Fossilized Sperm Whale Tooth: 31.41 Awesome colors this specimen is between 2.5 to 23 Million years old! Weight 7oz

Mar 21, 2026

Ancient Fossilized Sperm Whale Tooth

Circle M Auctions

Est. US$5-US$1,000

Freeform Obsidian and Glass Specimens, 3: Group of Three Freeform Obsidian and Glass Specimens, comprising: one black obsidian specimen, one black glass chunk, and one clear glass, on wooden plinth. Overall: 6" H x 14.5" W x 7 D. Provenance:

5 days Left

Freeform Obsidian and Glass Specimens, 3

Auctions at Showplace

Est. US$400-US$600

(7) Petrified Wood Specimens: Collection of seven petrified wood specimens, varying in size and color height 5 in. x width 5 in. x depth 3 in. / largest Provenance: Property from a home in San Antonio, Texas

1 day Left

(7) Petrified Wood Specimens

Vogt Auction Texas

Est. US$300-US$600

ASSORTED SLICED ROCK / MINERAL SPECIMENS, LOT OF 13: ASSORTED SLICED ROCK / MINERAL SPECIMENS, LOT OF 13, including a piece of petrified wood labeled "Hickory / Washington", rhodonite, jasper, various agate, and pieces which appear to be

4 days Left

ASSORTED SLICED ROCK / MINERAL SPECIMENS, LOT OF 13

Jeffrey S. Evans & Associates

Est. US$50-US$80

ASSORTED GEODE ROCK SPECIMENS, LOT OF 15: ASSORTED GEODE ROCK SPECIMENS, LOT OF 15, each of a similar form with exposed crystals in varying colors, several examples are two halves / parts of the same stone. Collected in the 20th century. Larg

4 days Left

ASSORTED GEODE ROCK SPECIMENS, LOT OF 15

Jeffrey S. Evans & Associates

Est. US$80-US$120

ASSORTED ROCK AND MINERAL SPECIMENS, UNCOUNTED LOT: ASSORTED ROCK AND MINERAL SPECIMENS, UNCOUNTED LOT, more than 50 pieces, including a number of bloodstone specimens, quartz crystals, amazonite, possibly moss agate, and dendritic agate or common opal

4 days Left

ASSORTED ROCK AND MINERAL SPECIMENS, UNCOUNTED LOT

Jeffrey S. Evans & Associates

Est. US$50-US$80

ASSORTED PETRIFIED WOOD SPECIMENS, LOT OF NINE: ASSORTED PETRIFIED WOOD SPECIMENS, LOT OF NINE, including a relatively large slab section, four long log-like examples, and four smaller specimens. Collected in the 20th century. Slab 3 5/8" HOA,

4 days Left

ASSORTED PETRIFIED WOOD SPECIMENS, LOT OF NINE

Jeffrey S. Evans & Associates

Est. US$50-US$80

ASSORTED ROCK / STONE AND MINERAL SPECIMENS, LOT OF 14: ASSORTED ROCK / STONE AND MINERAL SPECIMENS, LOT OF 14, two examples react under blacklight, including pieces of copper featuring one of which is from Gettysburg, PA, an example which may be

4 days Left

ASSORTED ROCK / STONE AND MINERAL SPECIMENS, LOT OF 14

Jeffrey S. Evans & Associates

Est. US$50-US$80

ASSORTED APATITE, MINERAL / ROCK, AND OTHER SPECIMENS, LOT OF 11: ASSORTED APATITE, MINERAL / ROCK, AND OTHER SPECIMENS, LOT OF 11, several with partially-polished areas, others sliced, most examples with green-blue coloration, one example appears to be a

4 days Left

ASSORTED APATITE, MINERAL / ROCK, AND OTHER SPECIMENS, LOT OF 11

Jeffrey S. Evans & Associates

Est. US$50-US$80

Ancient Fossilized Oreodont Skull: 31.35 This is a large specimen with nearly complete bottom jaw visible teeth still in matrix. Some restoration which is common with most fossilized specimens of this nature .This Awesome piece is anyw

Mar 21, 2026

Ancient Fossilized Oreodont Skull

Circle M Auctions

Est. US$5-US$1,000

Himalayan Aragonite Stalactite Formation: Huge Himalayan aragonite stalactite formation on custom wood stand. This specimen was $3800 at a gem store before it closed. 17.5” x 13.5” x 4.5”. 34 pounds, 13 ounces.

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Himalayan Aragonite Stalactite Formation

Fossils & Gemstones of Houston

Vintage Boho Amethyst Geode Natural Crystal Display 8.5in: Vintage Boho Amethyst Geode Natural Crystal Display 8.5in Embrace the raw beauty of nature with this stunning vintage amethyst geode, a perfect embodiment of the Vintage Boho aesthetic. This captivati

2 days Left

Vintage Boho Amethyst Geode Natural Crystal Display 8.5in

Est. US$923-US$1,199

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