The Mineral Specimens & Gemstones sale features a multi-consignor selection of fossils, minerals, gembones, and natural history specimens, with additional decorative stone items and geological material. The catalog is centered on agatized bone, fossil specimens, mineral formations, and display-ready pieces across multiple categories.

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Bid online now through Thursday, May 7th at alderferauction.com. This auction will begin closing at 7 PM at a rate of 5 lots per minute. Active bidding will be auto-extended 3 minutes for each lot once it begins to close.

Gembones are a leading category, they are polished cross-sections showing cellular structure, as well as raw gembone pieces retaining natural exterior surfaces. Several lots include cut and polished slabs suitable for display, along with irregular fragments and polished pendant-sized pieces that can be used for jewelry artisan creations.

Read More: Fossil or Gemstone? The Unique Category of Dinosaur Gembone

Fossils appear across numerous lots, including ammonite fossils with visible spiral structure and trilobite fossils preserved in matrix. Additional fossil material includes bone and tooth fragments and mineralized specimens, along with ancient fossilized marine life. These include both standalone display pieces and matrix-mounted specimens.

Minerals and crystals represent a significant portion of the catalog, including quartz clusters, geodes, copper and crystal formations. These include both natural formations and polished mineral specimens. Petrified wood sections make interesting conversation display pieces. Additional mineral lots include mixed stone groupings such as Azurite, Obsidian, Pyrite, Jasper, Agate, Chalcedony and more.

Stone tools are also present, including arrowheads, hammer stones, gorgets, net weights, pestles and more.

Display-ready material is consistent throughout the catalog, with many items presented as polished specimens, mounted fossils, or naturally formed pieces suitable for shelves, cabinets, or tabletop display. Both individual specimens and multi-piece lots are represented. Across the catalog, the auction includes natural history materials to add to any collection.

This auction presents a focused selection of gembones, fossils, marine specimens, minerals, and indigenous tools, with strong representation of natural formations across multiple collecting categories.

Buyer’s Premium | 23%

Preview | Hatfield, PA
In-House Preview by appointment only
Tuesday, May 5th | 9AM – 3PM
Wednesday, May 6th | 9AM – 3PM
Schedule a Preview via preview@alderferauction.com | 215.393.3000

Condition Report Requests | alderferauction.com/condition-report

Pick-Up
Successful Bidders will be notified to schedule a pick-up following the auction. Schedule your pick-up with Alderfer Auction by following this link: https://booking.appointy.com/alderferauction. Customers must schedule or inform Alderfer Auction of pickup or ship date and time, within fifteen (15) business days after the auction closes. On the sixteenth (16) business day, the buyer will incur a storage fee of $5.00 per day up to the 60^th day at which point the product will be considered abandoned despite payment status and without notification. Please see Terms and Conditions for full details.

Pick-Up Location
Alderfer Auction
501 Fairgrounds Road
Hatfield, PA 19440

Shipping
Third party shipping is available for this auction. Please contact shipping@alderferauction.com or see our terms and conditions for a list of recommended local shippers.

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NOTE: We reserve the right to adjust auction information and dates.