Antique & Vintage Fossils for Sale in Online Auctions

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Mosasaur Tooth Fossil in Matrix: Mosasaur tooth fossil in matrix from Morocco. 3.75" x 3.5" x 1.75". 322 grams.

2026

Mosasaur Tooth Fossil in Matrix

Fossils & Gemstones of HoustonHouston, TX

Huge Polished Labradorite Freeform: Huge polished labradorite freeform from Madagascar. 10.5” x 9.5” x 3”. 23 pounds, 8 ounces.

2026

Huge Polished Labradorite Freeform

Fossils & Gemstones of HoustonHouston, TX

Citrine Cluster: Freestanding citrine cluster with polished edges. 6" x 8" x 2.5". 5 pounds, 15 ounces.

2026

Citrine Cluster

Fossils & Gemstones of HoustonHouston, TX

Large Amethyst Cornucopia-Shaped Vug Geode: Large, deep and colorful amethyst cornucopia-shaped vug geode. 8.25” x 11” x 12”. 21 pounds, 8 ounces.

2026

Large Amethyst Cornucopia-Shaped Vug Geode

Fossils & Gemstones of HoustonHouston, TX

Deep Purple Amethyst Vug Geode: Beautiful, large, deep purple amethyst vug geode. 9” x 15” x 12.5”. 46 pounds.

2026

Deep Purple Amethyst Vug Geode

Fossils & Gemstones of HoustonHouston, TX

Large Kyanite and Quartz Formation: Large blue kyanite and quartz formation with long vertical blades. 12.5" x 6" x 4". 16 pounds, 5 ounces.

2026

Large Kyanite and Quartz Formation

Fossils & Gemstones of HoustonHouston, TX

Amethyst Geode Angel Wings: Beautiful, freestanding amethyst geode angel wings with stalactites and calcite crystals. 17.75" x 13.75"W x 5.5" and 17.5" x 14" x 5.5", respectively. 79.80 pounds total weight.

2026

Amethyst Geode Angel Wings

Fossils & Gemstones of HoustonHouston, TX

Citrine Crystal Heart on Stand: Citrine crystal heart on custom metal stand from Brazil. 9” x 7.5” x 4”. 5 pounds, 15 ounces.

2026

Citrine Crystal Heart on Stand

Fossils & Gemstones of HoustonHouston, TX

Amethyst, Quartz and Hematite Flower Formation: Exquisite amethyst, quartz and hematite flower formation. Colorful and delicate. 7.5" x 9.5" x 1". 1 pound.

2026

Amethyst, Quartz and Hematite Flower Formation

Fossils & Gemstones of HoustonHouston, TX

Polished Mookaite Slice: Thick polished mookaite slice from Australia. 9" x 11" x .75". 5 pounds, 2 ounces.

2026

Polished Mookaite Slice

Fossils & Gemstones of HoustonHouston, TX

Top-notch Pyrite Formation: Stunning and bright top-quality pyrite formation from the Huanzala Mine in Ancash, Peru. 4.5” x 5.5” x 3”. 5 pounds, 3 ounces.

2026

Top-notch Pyrite Formation

Fossils & Gemstones of HoustonHouston, TX

Exceptional Quality Amethyst Crystal Cluster: Exceptional quality amethyst cluster with remarkably dark, deep-purple crystals. 12.25" x 17.75" x 3.5". 23 pounds, 2 ounces.

2026

Exceptional Quality Amethyst Crystal Cluster

Fossils & Gemstones of HoustonHouston, TX

Moroccan Jurassic Double Starfish Fossil: Moroccan Jurassic double starfish fossil. 7” x 8” x .1”. 3 pounds, 3 ounces.

2026

Moroccan Jurassic Double Starfish Fossil

Fossils & Gemstones of HoustonHouston, TX

Moroccan Jurassic Starfish Fossil: Moroccan Jurassic starfish fossil. 4.5” x 7” x .75”. 1 pound, 7 ounces.

2026

Moroccan Jurassic Starfish Fossil

Fossils & Gemstones of HoustonHouston, TX

Amethyst Geode Butterfly Wings: Amethyst geode butterfly wings on custom stand from Brazil. 25” x 20” x 10”. 58 pounds, 2 ounces.

2026

Amethyst Geode Butterfly Wings

Fossils & Gemstones of HoustonHouston, TX

Large Mahogany Obsidian Freeform: Large polished mahogany obsidian freeform from Mexico. 9.5” x 4.5” x 4”. 8 pounds, 2 ounces..

2026

Large Mahogany Obsidian Freeform

Fossils & Gemstones of HoustonHouston, TX

Megalodon Shark Tooth Fossil: Large megalodon shark tooth fossil. 4” x 2” x .75”. 114 grams.

2026

Megalodon Shark Tooth Fossil

Fossils & Gemstones of HoustonHouston, TX

Polished Citrine Egg: Polished citrine egg with large dark crystals from Brazil. 6.5” x 4.5” x 3.5”. 4 pounds, 13 ounces.

2026

Polished Citrine Egg

Fossils & Gemstones of HoustonHouston, TX

Polished Labradorite Freeform: Polished labradorite freeform from Madagascar. 5.25” x 3.75” x 2.5”. 2 pounds, 8 ounces.

2026

Polished Labradorite Freeform

Fossils & Gemstones of HoustonHouston, TX

Museum Grade Velvety Malachite Plate: Large museum grade velvety malachite plate from the DR Congo. 11” x 17” x 3”. 13 pounds, 1 ounce.

2026

Museum Grade Velvety Malachite Plate

Fossils & Gemstones of HoustonHouston, TX

Super Rare Atomic Amethyst Crystal: Super rare atomic amethyst crystal from Santander, Colombia. Quartz crystal coating. Internal starburst pattern. 6” x 4.5” x 3”. 2 pounds, 1 ounce.

2026

Super Rare Atomic Amethyst Crystal

Fossils & Gemstones of HoustonHouston, TX

Loose Diamond - ROUND 0.5ct D VS1: Loose Diamond - ROUND 0.5ct D VS1 Source: Natural Shape: ROUND Carats: 0.5 Color: D Clarity: VS1 Certification: GIA Video:

2026

Loose Diamond - ROUND 0.5ct D VS1

BidhausNew York, NY

2.38 ct Oval Mixed-Cut Emerald, IGI Certified, Moderate Oil: This fine 2.38 carat natural emerald, certified by the International Gemological Institute (IGI Report No. 574362520, dated May 8, 2023), displays classic characteristics consistent with high-quality

2026

2.38 ct Oval Mixed-Cut Emerald, IGI Certified, Moderate Oil

Chan & Scott Auction HouseLinghem, Ostergotland

LARGE CARVED AMETHYST MODEL OF A SKULL: Large carved amethyst model of a skull, approx 7.25"h, 6.5"w, 9.5"d, 23.75lbs

2026

LARGE CARVED AMETHYST MODEL OF A SKULL

Austin Auction GalleryAustin, TX

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24

Fossils Auctions

Rare Fossilized Dinocrocuta Skull, Terrible Hyena

Large Woodland Period Steatite Platform Pipe

Roman Imperial Silver Cup with Twin Handles

Fossils | Native American | Ethnographic Art

Artemis Fine Arts

Starts on:

Louisville, CO, US

4 days Left

Massive Chinese Village Silkscreen Print Roll, 13' L

Lovely Hand Crafted Necklace, Mixed Mineral Beads

French Gilt Bronze & Porcelain Mantle Clock, Louis XVI-style

Warehouse: Minerals, Jewelry & Estates

Scollard Auctions

Starts on:

Brea, CA, US

7 days Left

The Great Estate Gem & Antique Discovery Sale

Col. Christie Hatman Auctioneers

Starts on:

Thayer, MO, US

14 hrs Left

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