Roger Capron Fossils

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Natural Gobi Desert Banded Agate Slice with Central Druzy Pocket, 66AA: Polished natural Gobi desert agate slab measuring 6.2cm x 2.7cm, featuring delicate concentric layered banding in creamy white, soft sage green, honey amber and pale yellow tones. A distinct triangula

2026

Natural Gobi Desert Banded Agate Slice with Central Druzy Pocket, 66AA

Sathorn, Bangkok

ThousandPlanet

4.5

(310)

228.56ct Natural Peruvian Chrysocolla Polished Slab Rough, 56EK: This partial-polished chrysocolla slab features blended mineral matrix with smooth refined face and unaltered natural rugged edge across its 56x29x26mm elongated form, translucent mineral layers hold

2026

228.56ct Natural Peruvian Chrysocolla Polished Slab Rough, 56EK

Sathorn, Bangkok

ThousandPlanet

4.5

(310)

70.48ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 48AX: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

70.48ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 48AX

Sathorn, Bangkok

ThousandPlanet

4.5

(310)

43ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 29BM: This smoothly polished cabochon of natural phantom quartz preserves delicate layered phantom crystal formations enclosed inside transparent quartz host. The domed polished surface offers unobstructed

2026

43ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 29BM

Sathorn, Bangkok

ThousandPlanet

4.5

(310)

14.75ct Natural Mariam Jasper (Calligraphy Stone) Cabochon Loose Gemstone, 7AK: This fully polished Mariam Jasper, widely referred to as Calligraphy Stone, features deep plum base matrix interlaced with intricate golden ochre fossilized mineral veining that creates natural brushs

2026

14.75ct Natural Mariam Jasper (Calligraphy Stone) Cabochon Loose Gemstone, 7AK

Sathorn, Bangkok

ThousandPlanet

4.5

(310)

13.50ct Natural Baltic Polished Loose Freeform Amber Gemstone, 21EB: This smoothly polished freeform amber piece carries warm translucent organic clarity with fine natural fossil flecks and tiny mineral inclusions suspended throughout its 28x13mm flowing unstructured s

2026

13.50ct Natural Baltic Polished Loose Freeform Amber Gemstone, 21EB

Sathorn, Bangkok

ThousandPlanet

4.5

(310)

An Egyptian hornblende diorite jar: An Egyptian hornblende diorite flattened jarPredynastic Period, Naqada II, circa 3500-3200 B.C.26cm H x 10cm mouth diameterProvenance: property of an private european collector, acquired in early 1970

2026

An Egyptian hornblende diorite jar

Sharjah, Sharjah

Ancient Romana Gallery

Large Coco de Mer Double Coconut Seed Specimen: Large Coco de Mer Double Coconut Seed Specimen Seychelles The nut of the Coco de Mer, a species of rare palm tree which is only found in the Seychelles in the Indian Ocean, it is the largest seed in t

2026

Large Coco de Mer Double Coconut Seed Specimen

Dania Beach, FL

Akiba Galleries

4.7

(2k)

Quartz & Chrysanthemum Stone Spheres: This collection features several polished mineral spheres crafted from various geological materials. Included is a clear quartz sphere containing dark needle-like inclusions and internal veils, which

2026

Quartz & Chrysanthemum Stone Spheres

Dundee, OH

Atlee Raber Auctions

4.6

(600)

10 Mineral & Gemstone Specimens: A ten-piece collection of natural, carved, and polished mineral and gemstone specimens. The group includes three pieces presented on clear acrylic display risers: a rough specimen of turquoise botryoi

2026

10 Mineral & Gemstone Specimens

Dundee, OH

Atlee Raber Auctions

4.6

(600)

Polished Gemstone Towers & Tapered Wand: This collection features a variety of polished decorative mineral specimens, consisting of six vertical points and one tapered wand. The largest tower is composed of rose quartz treated with a metalli

2026

Polished Gemstone Towers & Tapered Wand

Dundee, OH

Atlee Raber Auctions

4.6

(600)

Group of Sea Shells: Group of Sea Shells

2026

Group of Sea Shells

Placentia, CA

Bryant Art Auction

4.3

(111)

(2) Sea Shells: (2) Sea Shells, 6in

2026

Placentia, CA

Bryant Art Auction

4.3

(111)

Cymboila Nobilis Sea Shell: Cymboila Nobilis Sea Shell, 6.25in by 3.5in

2026

Cymboila Nobilis Sea Shell

Placentia, CA

Bryant Art Auction

4.3

(111)

Assorted Marine Sea Shells: Assorted Marine Sea Shells, 1.25-3in

2026

Assorted Marine Sea Shells

Placentia, CA

Bryant Art Auction

4.3

(111)

Jurassic Grallator Theropod Dinosaur Footprint Fossils: Ca. 200 million years old. North America, Eastern United States, Connecticut, Connecticut River Valley, Early Jurassic period, ca. 200 million years ago. A mica-bearing slate or mudstone preserving th

2026

Jurassic Grallator Theropod Dinosaur Footprint Fossils

Louisville, CO

Artemis Fine Arts

4.7

(1.5k)

Moroccan Fossil Ammonite Carving with Orthoceras Shells: Ca. 358.9–419.2 million years old. North Africa, Morocco, Devonian Period, ca. 419.2 to 358.9 million years ago. A large ammonite-form carving shaped and polished from fossil-rich Moroccan stone

2026

Moroccan Fossil Ammonite Carving with Orthoceras Shells

Louisville, CO

Artemis Fine Arts

4.7

(1.5k)

Loose Diamond - Round 4.71ct E VS1: Loose Diamond - Round 4.71ct E VS1 Source: This is a real non-mined Diamond that has been grown in a lab Shape: Round Carats: 4.71 Color: E Clarity: VS1 Certification: IGI Condition: Pre-Owned PLEASE

2026

Loose Diamond - Round 4.71ct E VS1

New York, NY

Bidhaus

4.2

(876)

Large Banded Jasper Rock Specimen, 1 lb 10 oz: Natural polishe...Natural polished jasper specimen with rich swirling brown, tan, and cream banding in an agate-like pattern. Weighs 1 pound 10 ounces and measures approximately 6 inches wide.

2026

Large Banded Jasper Rock Specimen, 1 lb 10 oz

Thayer, MO

Col. Christie Hatman Auctioneers

4.3

(544)

8.05 Carat Myanmar Blood Ruby Brilliant Trillion Cut: A brilliant trillion cut is an exceptional and high-value gemstone featuring a vivid "pigeon's blood" red hue, a triangular brilliant faceting style, and prized Burmese origin. Natural Burmese rubies

2026

8.05 Carat Myanmar Blood Ruby Brilliant Trillion Cut

Oceanside, CA

California Gemstones

4.3

(19)

Collection of Mineral Specimens: A group of geological specimens including polished bumblebee jasper, a heat-treated amethyst cluster, a desert rose selenite cluster on an acrylic mount, and a lepidolite specimen. The assortment also

2026

Collection of Mineral Specimens

Okemos, MI

Kellie's Estate Sales

4.6

(196)

62.78 Carats Natural Bi-Color Ametrine Raw Rough Crystal Chunk, 77YR: This genuine natural ametrine rough showcases a seamless blend of soft lavender amethyst and pale golden citrine hues formed within a single quartz crystal. Delicate rusty orange mineral inclusions an

2026

62.78 Carats Natural Bi-Color Ametrine Raw Rough Crystal Chunk, 77YR

Sathorn, Bangkok

Lazo Heritage

4.4

(22)

5.29 Carats Natural Madagascar Greenish Yellow Sapphire Cabochon Loose Gemstone, 38XX: Formed from natural corundum sourced from Madagascar geological deposits, this raw mineral material is processed into a polished cabochon form through professional stone finishing techniques with a sm

2026

5.29 Carats Natural Madagascar Greenish Yellow Sapphire Cabochon Loose Gemstone, 38XX

Sathorn, Bangkok

Lazo Heritage

4.4

(22)

6.64 Carats Natural Madagascar Greenish Yellow Sapphire Cabochon Loose Gemstone, 40XX: Formed from natural corundum sourced from Madagascar geological deposits, this raw mineral material is processed into a polished cabochon form through professional stone finishing techniques with a sm

2026

6.64 Carats Natural Madagascar Greenish Yellow Sapphire Cabochon Loose Gemstone, 40XX

Sathorn, Bangkok

Lazo Heritage

4.4

(22)

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Fossils Auctions

Ancient Orthoceras Cephalopod Specimens in Black Matrix

Fine Heavy Malachite Bowl, 492 grams

Fine Ancient Nantan Meteorite, 82 Grams

Variety Auction - Jewelry, Fossils & Minerals

Inspired Auctions

Starts on:

Brea, CA, US

3 days Left

Olmec Jade Male Figure, Arroyo Pesquero Cache, Scarification

Cocle Gold Saurian Deity Pectoral, Alligator Headdress (205 gr)

Huari Painted Cotton Panel with Radiant Sun Face

DAY 1 Pre-Columbian, Native American, Fossils

Artemis Fine Arts

Starts on:

Louisville, CO, US

Phil Chapo Navajo Sterling Botanical Cuff Bracelet

Rolex Oyster 14kt Perpetual Datejust Gold Dial

Lladro "Garden Breeze" Figurine

Estate Auction

Seminole Estate Auction

Starts on:

Orange City, FL, US

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