Rocks, Minerals & Fossils

(2) GEOLOGICAL AGATE & AMETHYST SPECIMENS First Image

#image-loader-main { display: none; }

(2) GEOLOGICAL AGATE & AMETHYST SPECIMENS First Image

(2) GEOLOGICAL AGATE & AMETHYST SPECIMENS

Total Sales1 Sold

Median Sale Price

Sale Price Range

Similar Upcoming Sales

Collector's Lot of 4 Crystal Specimens (1 of 7)

Collector's Lot of 4 Crystal Specimens

Material Culture

16 hrs Left

A lot of two decorative vintage table lamps, both decorated with a polished agate slice (1 of 4)

A lot of two decorative vintage table lamps, both decorated with a polished agate slice

Ostantix Auctions

Feb 24, 2026

66.91 gram Uruguay Amethyst Geode Lot (1 of 4)

66.91 gram Uruguay Amethyst Geode Lot

Antique Finder Services

6 days Left

Lot of (3) Natural Amethyst Tumbled Stones (1 of 4)

Lot of (3) Natural Amethyst Tumbled Stones

Antique Finder Services

6 days Left

4 LARGE MINERAL SPECIMENS, CRYSTALS, GEODE. 8" X 6" AND SMALLER (1 of 5)

4 LARGE MINERAL SPECIMENS, CRYSTALS, GEODE. 8" X 6" AND SMALLER

Kimballs Auction and Estate Services

Feb 15, 2026

Natural polished Half Cut Hardstone Amethyst Geode Bookends Paperweights (1 of 6)

Natural polished Half Cut Hardstone Amethyst Geode Bookends Paperweights

Carnegie's Auction Gallery

Feb 22, 2026

AGATE ROCK STONE LAPIDARY SPECIMEN (1 of 2)

AGATE ROCK STONE LAPIDARY SPECIMEN

Col. Christie Hatman Auctioneers

3 days Left

THUNDER BAY AMETHYST ROCK STONE LAPIDARY SPECIMEN (1 of 2)

THUNDER BAY AMETHYST ROCK STONE LAPIDARY SPECIMEN

Col. Christie Hatman Auctioneers

24 hrs Left

AGATE SLICES ROCK STONE LAPIDARY SPECIMEN (1 of 2)

AGATE SLICES ROCK STONE LAPIDARY SPECIMEN

Col. Christie Hatman Auctioneers

Feb 02, 2026

Amethyst Crystal Geode Display (1 of 1)

Amethyst Crystal Geode Display

TimeLine Auctions Ltd.

Mar 03, 2026

Large Cut and Polished Slab of Vintage Blue John (1 of 1)

Large Cut and Polished Slab of Vintage Blue John

TimeLine Auctions Ltd.

Mar 07, 2026

AMETHYST DISPLAY ROCK STONE LAPIDARY SPECIMEN (1 of 2)

AMETHYST DISPLAY ROCK STONE LAPIDARY SPECIMEN

Col. Christie Hatman Auctioneers

24 hrs Left

AMETHYST DISPLAY ROCK STONE LAPIDARY SPECIMEN (1 of 2)

AMETHYST DISPLAY ROCK STONE LAPIDARY SPECIMEN

Col. Christie Hatman Auctioneers

24 hrs Left

47.61 gram Natural Amethyst / Citrine Parcel (1 of 3)

47.61 gram Natural Amethyst / Citrine Parcel

Antique Finder Services

6 days Left

TWO NATURAL CARVED AMETHYST AGATE OPEN WORK CRYSTAL MINERALS - WITH ONE BEING MOUNTED ON STONE (1 of 10)

TWO NATURAL CARVED AMETHYST AGATE OPEN WORK CRYSTAL MINERALS - WITH ONE BEING MOUNTED ON STONE

Peddlers Auction

Feb 28, 2026

AMETHYST CATHEDRAL FORM GEODE (1 of 2)

AMETHYST CATHEDRAL FORM GEODE

Thomaston Place Auction Galleries

Feb 20, 2026

Similar Sale History

Unlock All Prices

Sold

(2) GEOLOGICAL AGATE & AMETHYST SPECIMENS (1 of 3)

(2) GEOLOGICAL AGATE & AMETHYST SPECIMENS lot of 2) Geological specimens, on stands, including: (1) agate slice, approx 14"h, 6.75"w, 4.75"d (base); (1) pink amethyst slice, approx 11"h, 9"w, 3.75"d (base; 10lbs total **Provenance: Eight Poin

Sold

(2) GEOLOGICAL AMETHYST GEODES (1 of 5)

(2) GEOLOGICAL AMETHYST GEODES (lot of 2) Geological specimen amethyst geodes, including: (1) cathedral-form geode, approx 9"h, 9"w, 5"d; (1) square-shaped geode, approx 7.75"h, 7.25"w, 6"d; 33lbs tota

Sold

2 3/4" 243 gram Brazilian Agate Amethyst Geode Specimen from Brazil (1 of 5)

2 3/4" 243 gram Brazilian Agate Amethyst Geode Specimen from Brazil 2 3/4" 243 gram Brazilian Agate Amethyst Geode Specimen from Brazil

Sold

4 1/2" Tall, 634 Grams, Brazilian Agate Amethyst Geode Specimen (1 of 4)

4 1/2" Tall, 634 Grams, Brazilian Agate Amethyst Geode Specimen 4 1/2" Tall, 634 Grams, Brazilian Agate Amethyst Geode Specimen

Sold

GEOLOGICAL AGATE SPECIMEN ON ACRYLIC BASE (1 of 3)

GEOLOGICAL AGATE SPECIMEN ON ACRYLIC BASE Agate slice, Brazil, mounted on colorless acrylic base, fossil: 11.5"h, 9.5"w, 2"d, overall: approx 13"h, 9.5"w, 4"d, 7.8lbs Start Price: $100.00

Sold

Nine Assorted Natural Mineral Specimens (1 of 7)

Nine Assorted Natural Mineral Specimens Nine Assorted Natural Mineral Specimens including 2 agate druzy geodes, amethyst cluster, quartz cluster, sodalite, fuchsite, amazonite, turquoise and chrysocolla. Used condition. Largest specimen app

Sold

2 Geologic Specimens: Amethyst (12" W) & Agate (6"H). (1 of 5)

2 Geologic Specimens: Amethyst (12" W) & Agate (6"H).2 Geologic Specimens: Amethyst (12" W) & Agate (6"H).

Sold

(3) GEOLOGICAL AMETHYST & QUARTZ CRYSTAL SPECIMENS (1 of 2)

(3) GEOLOGICAL AMETHYST & QUARTZ CRYSTAL SPECIMENS (lot of 3) Geological crystal specimens, including: (1) druzy quartz on stand, (1) amethyst, approx 1.5"h, 4.5"l, 2.25"w, (1) smoky quartz point, approx 4.25"h, 3.5"l, 2.5"w; 3.5lbs total Start Price:

Sold

TWO BLUE LACE AGATE GEOLOGICAL SPECIMENS (1 of 7)

TWO BLUE LACE AGATE GEOLOGICAL SPECIMENS LARGEST IS 4" X 2 1/2" X 3 1/4"

Sold

2 Bolivian Amethyst & Agate Geode w/ Quartz Druse (1 of 4)

2 Bolivian Amethyst & Agate Geode w/ Quartz Druse South America, Uruguay or Bolivia, ca. millions of years old. A stunning pair of mineral specimens: an agate geode, cut in half, and polished to reveal the crystalline structures and a large piece of

Sold

16 Piece Geology rock specimens. Rainbow amethyst, Dugway agate, Crystal Obelisks, Jasper, etc (1 of 15)

16 Piece Geology rock specimens. Rainbow amethyst, Dugway agate, Crystal Obelisks, Jasper, etc 16 Piece Geology rock specimens. Rainbow amethyst, Dugway agate, Crystal Obelisks, Jasper, etc Dimensions: Height: 5.5 inches, Width: 2 inches, Depth: 2 inches. --- US Packing and Shipping charge: In

Sold

GRAPE AGATE SPHERE GEOLOGICAL SPECIMEN MINED IN MANAKARRA REGION, SULAWESI ISLAND, INDONESIA (1 of 7)

GRAPE AGATE SPHERE GEOLOGICAL SPECIMEN MINED IN MANAKARRA REGION, SULAWESI ISLAND, INDONESIA 2"

Sold

Lot of Mineral Specimens (1 of 20)

Lot of Mineral Specimens Lot of mineral and crystal specimens, including Calcite, Amethyst, Labradorite, Kyanite, Aquamarine, Chrysocolla, 2 polished Agate slices, Septarian geode; with a petrified wood specimen. Aquamarine 4

Sold

(4) Geological Specimens (1 of 14)

(4) Geological Specimens (4) Geological Specimens.  Polished agate slice. Two ammonite fossils showcasing its classic spiral shape. Polished geode slice.  Largest Size: 5 1/2 x 5 x 1/4 in. 

Sold

Amethyst Crystal Geode, 61 pounds (1 of 8)

Amethyst Crystal Geode, 61 pounds Item/Description: Large crystal cluster geode in shades of purple. (Rock, Natural, Collectible, Mineral, Specimen) Material: Agate, Quartz, Amethyst Dimensions: Length: 14"; Width: 14 1/2"; Height: 6"

Sold

Collection Of Geological Specimens, Including Turquoise, Agate, Petrified Wood, And More (1 of 19)

Collection Of Geological Specimens, Including Turquoise, Agate, Petrified Wood, And More Collection Of Geological Specimens, Including Turquoise, Agate, Petrified Wood, And More. Largest Approximately 2.5L x 2.5W x 0.375D in. Smallest Approximately 0.375L x 0.375W x 0.125D in.

Sold

Amethyst Quartz Crystal Cluster Mineral Specimen (1 of 10)

Amethyst Quartz Crystal Cluster Mineral Specimen Amethyst purple rock crystal quartz cluster mineral specimen on a blue lace banded agate matrix underside. 2.25" H x 7.5" W x 5.5" D.

Sold

A GROUP OF THREE POLISHED MINERAL SPECIMENS, (1 of 11)

A GROUP OF THREE POLISHED MINERAL SPECIMENS,A GROUP OF THREE POLISHED MINERAL SPECIMENS, comprising a violet amethyst cluster, height: 2 3/4", width: 5 1/2", depth: 3"; a thin slice of brown agate, height: 6 1/2", width: 3 3/4", depth: 1/8"; an

Sold

Geode and mineral specimen collection (1 of 8)

Geode and mineral specimen collection Geode and mineral specimen collection, (15) pieces including a large polished malachite, 3.5"h x 8"l x 3.5"w, 2 amethyst geodes, a pair of polished agate bookends, a polished sphere with geode inclusi

Sold

BLUE AGATE & AMETHYST SPECIMENS ON CUSTOM BASE (1 of 6)

BLUE AGATE & AMETHYST SPECIMENS ON CUSTOM BASE Blue agate and amethyst specimen, comprised of two pieces exposing the inner crystal formations, on custom wooden base. Approx. h. 4", w. 16", d, 13"; smaller h. 3.25", w. 10.5", d. 9"

Sold

(2) GEOLOGICAL AMETHYST CATHEDRAL GEODES (1 of 4)

(2) GEOLOGICAL AMETHYST CATHEDRAL GEODES (lot of 2) Geological amethyst cathedral geodes, largest: approx 11"h, 7.75"w, 5.25"d, smallest: approx 9.5"h, 8.5"w, 5"d, 31.5lbs total 

Sold

GEOLOGICAL AGATE SPECIMEN ON POLISHED NICKEL BASE (1 of 3)

GEOLOGICAL AGATE SPECIMEN ON POLISHED NICKEL BASE Agate specimen, mounted on polished nickel base, intact with visible fissure, possibly repaired, specimen: approx 22.5"h, 11.5"w, 3.5"d, overall: approx 27"h, 11.5"w, 6 1/8"d, 33.75lbs Start Price: $2

Sold

2 Popped Raw Amethyst Stone Specimens (1 of 7)

2 Popped Raw Amethyst Stone Specimens Set of 2 amethyst specimens 1 on acrylic cube base ant 2.5 inches tall and 4.75 inches wide and 1 with a green felt underside 4 inches wide. Minor wearing due to age and exposure Amethyst specimens, s

Sold

(2) GEOLOGICAL MALACHITE SPECIMENS ON BLACK MARBLE BASE (1 of 4)

(2) GEOLOGICAL MALACHITE SPECIMENS ON BLACK MARBLE BASE (pair) Geological malachite specimens, each mounted on black marble base, largest specimen: approx 7.5"h, 5.25"w, 2"d, overall: approx 11.5"h, 3"w, 3"d, 7.4lbs total

TOP