Results for “Mineral Specimens”

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A LARGE POLISHED LABRADORITE SPECIMEN TOMBSTONE SHAPE.: Found in Madagascar. Highly polished with wonderful reflections. 6.3" wide and 3.25 kilograms.

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A LARGE POLISHED LABRADORITE SPECIMEN TOMBSTONE SHAPE.

$200

Cedarhurst, NY

J. Greenstein & Co., Inc.

4.4

(68)

Lot of 5 Natural Crystals and Geodes: Specs Title: Lot of 5 Natural Crystals and Geodes

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Lot of 5 Natural Crystals and Geodes

$100

Hollywood, FL

Williamson Auction Gallery

4.6

(338)

$Large Group of Forty-Two [42] Cleaved Optical Calcite Specimens: Comprising forty-two calcite rhombs displaying characteristic double refraction. 1.54 kg total, 24-42 mm (1 - 1 5/8 in.). [42, No Reserve] Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gre$

Sep 12, 2026

Large Group of Forty-Two [42] Cleaved Optical Calcite Specimens

Est.

£30

-

£40

£5

Harwich, Essex

TimeLine Auctions Ltd.

4.6

(202)

HRD Round 0.53ct E IF - Loose Natural Diamond: HRD Round 0.53ct E IF - Loose Natural Diamond The HRD Round 0.53ct E IF - Loose Natural Diamond boasts exceptional clarity, with an IF (Internally Flawless) grade, and a vibrant color, rated E. Its EX

Sep 30, 2026

HRD Round 0.53ct E IF - Loose Natural Diamond

Est.

$6,210

-

$9,315

$860

Raleigh, NC

SEUYCO

4.6

(91)

Rare Natural Blue Pearl Specimen: A massively scaled 46.50ct natural pearl specimen exhibiting a distinct, highly sought-after natural blue body color. A 46-carat natural pearl specimen with a highly sought-after blue body color is an

Sep 12, 2026

Rare Natural Blue Pearl Specimen

Est.

$20,400

-

$30,000

$1,700

Rockville, MD

Ryan & Co Jewelers

Lots meteorite specimen: Lots meteorite specimen. Largest H: 5" x W: 4.5."

2 days Left

Lots meteorite specimen

Est.

$50

-

$150

$60

IRVINE, CA

West Coast Auction Gallery

4.7

(756)

Three Mosasaur Vertebrae, Niobrara Formation, Kansas, Late Cretaceous: Ca. 86–88 million years old. North America, United States, Kansas, Western Interior Seaway, Late Cretaceous period, circa 87 to 82 million years ago. A group of three fossilized mosasaur vertebr

3 days Left

Three Mosasaur Vertebrae, Niobrara Formation, Kansas, Late Cretaceous

Est.

$550

-

$750

$250

Louisville, CO

Artemis Fine Arts

4.7

(1.5k)

16.91 Cts IGI Certified Apatite: Impressive 16.91ct IGI-certified apatite large collector-grade specimen.

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16.91 Cts IGI Certified Apatite

Est.

$3,600

-

$7,200

$600

Bangkok, Krung Thep

Nile Jewels Co Ltd

21 Kg Top Quality Natural Lapis Lazuli Standing Tumble ? Large Polished Blue Gemstone Decor Piece: Impressive 21 kg top quality natural Lapis Lazuli standing tumble featuring deep royal blue color with golden pyrite flecks and a smooth polished finish. This large statement piece is perfect for luxu

5 days Left

21 Kg Top Quality Natural Lapis Lazuli Standing Tumble ? Large Polished Blue Gemstone Decor Piece

Est.

$5,000

-

$7,000

$1,975

Muscat, AE

Fantasy Jewelry

3.6

(154)

Large Metacanthina Trilobite Fossil in Stone Matrix: Ca. 395–405 million years old. Alnif region, Morocco. Devonian Period. A striking and well-prepared trilobite of the genus Metacanthina, preserved in high relief within its natural matrix. The s

3 days Left

Large Metacanthina Trilobite Fossil in Stone Matrix

Est.

$900

-

$1,500

$350

Louisville, CO

Artemis Fine Arts

4.7

(1.5k)

Giant 24 KG Polished Aragonite Jupiter Sphere ? Rare Museum-Grade Crystal Mineral: Behold the breathtaking grandeur of this massive 24 KG (approx. 53 lbs) Polished Aragonite "Jupiter" Sphere. Expertly carved and finished to a glass-like luster, this monumental statement crystal gets

5 days Left

Giant 24 KG Polished Aragonite Jupiter Sphere ? Rare Museum-Grade Crystal Mineral

Est.

$2,200

-

$3,500

$1,650

Muscat, AE

Fantasy Jewelry

3.6

(154)

Giant 24 KG Polished Aragonite Jupiter Sphere ? Rare Museum-Grade Crystal Mineral: Behold the breathtaking grandeur of this massive 24 KG (approx. 53 lbs) Polished Aragonite "Jupiter" Sphere. Expertly carved and finished to a glass-like luster, this monumental statement crystal gets

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Giant 24 KG Polished Aragonite Jupiter Sphere ? Rare Museum-Grade Crystal Mineral

$1,900

Muscat, AE

Fantasy Jewelry

3.6

(154)

Giant 24 KG Polished Aragonite Jupiter Sphere ? Rare Museum-Grade Crystal Mineral: Behold the breathtaking grandeur of this massive 24 KG (approx. 53 lbs) Polished Aragonite "Jupiter" Sphere. Expertly carved and finished to a glass-like luster, this monumental statement crystal gets

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Giant 24 KG Polished Aragonite Jupiter Sphere ? Rare Museum-Grade Crystal Mineral

$1,900

Muscat, AE

Fantasy Jewelry

3.6

(154)

Group of Twelve [12] Minerals and Crystals: Mixed group of specimens including malachite, 'desert rose', quartz, rose quartz, amethyst, pyrite, agate, and others. 2.96 kg total, 3.4-20.2 cm (1 3/8 - 7 7/8 in.). [12, No Reserve] Ex Mineral Impor

Sep 12, 2026

Group of Twelve [12] Minerals and Crystals

Est.

£30

-

£40

£5

Harwich, Essex

TimeLine Auctions Ltd.

4.6

(202)

21 Kg Top Quality Natural Lapis Lazuli Standing Tumble ? Large Polished Blue Gemstone Decor Piece: Impressive 21 kg top quality natural Lapis Lazuli standing tumble featuring deep royal blue color with golden pyrite flecks and a smooth polished finish. This large statement piece is perfect for luxu

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21 Kg Top Quality Natural Lapis Lazuli Standing Tumble ? Large Polished Blue Gemstone Decor Piece

$2,500

Muscat, AE

Fantasy Jewelry

3.6

(154)

21 Kg Top Quality Natural Lapis Lazuli Standing Tumble ? Large Polished Blue Gemstone Decor Piece: Impressive 21 kg top quality natural Lapis Lazuli standing tumble featuring deep royal blue color with golden pyrite flecks and a smooth polished finish. This large statement piece is perfect for luxu

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21 Kg Top Quality Natural Lapis Lazuli Standing Tumble ? Large Polished Blue Gemstone Decor Piece

$2,500

Muscat, AE

Fantasy Jewelry

3.6

(154)

X Large Prehistoric Ammonite Fossil - A Pair: Ammonites were predatory mollusks that resembled squid. These cephalopods had eyes, tentacles, and spiral shells. They are more closely related to a living octopus, though the shells resemble that of

X Large Prehistoric Ammonite Fossil - A Pair

Est.

$380

-

$1,130

$190

Laconia, NH

Chairish Auction House

4.3

(5)

Fern Fossils, Opal Specimens, & Dinosaur Tooth: Ca. 66–70 million years old. Australia, & North America, ca. millions of years ago. A collection of natural history specimens including two raw opal pieces housed in a glass viewing jar, the whi

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Fern Fossils, Opal Specimens, & Dinosaur Tooth

$600

Louisville, CO

Artemis Fine Arts

4.7

(1.5k)

Large Group of One Hundred [100] Green Fuchsite Mica Specimens: Comprising one hundred mint-green specimens exhibiting pearly lustre. 1.6 kg total, 24-50 mm (1 - 2 in.). [100, No Reserve] From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Grego

Sep 12, 2026

Large Group of One Hundred [100] Green Fuchsite Mica Specimens

Est.

£20

-

£30

£5

Harwich, Essex

TimeLine Auctions Ltd.

4.6

(202)

Group of One Hundred [100] Mahogany Obsidian Volcanic Glass Specimen: Comprising one hundred irregular specimens. 3.68 kg total, 32-52 mm (1 1/4 - 2 in.). [100, No Reserve] Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. TimeLine Aucti

Sep 12, 2026

Group of One Hundred [100] Mahogany Obsidian Volcanic Glass Specimen

Est.

£30

-

£40

£5

Harwich, Essex

TimeLine Auctions Ltd.

4.6

(202)

Group of Five [5] Cut and Polished Geode Half Specimens: Comprising five freestanding specimens with polished faces, some with enhanced colouring. 2.35 kg total, 10.7-11.4 cm (4 1/4 - 4 1/2 in.). [5, No Reserve] From Brazil. Ex Mineral Imports, London, UK.

Sep 12, 2026

Group of Five [5] Cut and Polished Geode Half Specimens

Est.

£20

-

£30

£5

Harwich, Essex

TimeLine Auctions Ltd.

4.6

(202)

1920 Grams Unique Large Hand Size Double Terminated Hiddenite Crystal Specimen - 19X12X4 CM: 1920 Grams Unique Large Hand Size Double Terminated Hiddenite Crystal Specimen - 19X12X4 CMShipping Rate: $60.00 .shipping rates are determined by Parcel weight and destination.Combined shipping: We o

5 days Left

1920 Grams Unique Large Hand Size Double Terminated Hiddenite Crystal Specimen - 19X12X4 CM

Est.

$2,400

-

$2,600

$1,950

Muscat, AE

Fantasy Jewelry

3.6

(154)

1920 Grams Unique Large Hand Size Double Terminated Hiddenite Crystal Specimen - 19X12X4 CM: 1920 Grams Unique Large Hand Size Double Terminated Hiddenite Crystal Specimen - 19X12X4 CMShipping Rate: $60.00 .shipping rates are determined by Parcel weight and destination.Combined shipping: We o

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1920 Grams Unique Large Hand Size Double Terminated Hiddenite Crystal Specimen - 19X12X4 CM

$2,200

Muscat, AE

Fantasy Jewelry

3.6

(154)

1920 Grams Unique Large Hand Size Double Terminated Hiddenite Crystal Specimen - 19X12X4 CM: 1920 Grams Unique Large Hand Size Double Terminated Hiddenite Crystal Specimen - 19X12X4 CMShipping Rate: $60.00 .shipping rates are determined by Parcel weight and destination.Combined shipping: We o

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1920 Grams Unique Large Hand Size Double Terminated Hiddenite Crystal Specimen - 19X12X4 CM

$2,200

Muscat, AE

Fantasy Jewelry

3.6

(154)

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