Priceless Rare Large Natural Oil Inclusion Geode Keokuk - Iowa Mineral Specimen

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Priceless Rare Large Natural Oil Inclusion Geode Keokuk - Iowa Mineral Specimen:
$50000.00

A truly exceptional and rare find: an authentic Keokuk geode containing natural bitumen oil inclusions, sourced from the famous Keokuk geode beds of southEastern Iowa. This specimen features a crystal-lined cavity with retained oil—a geological rarity that sets it apart from typical quartz or calcite-filled geodes.

A layer of oil coats the interior of this large geode specimen. Weighing in at 1 lb and 2 oz. You can faintly see brown calcite and pyrite shimmering beneath the oil.

Fluid-bearing geodes from this region are extraordinarily uncommon, and oil inclusions are nearly unheard of. This specimen is ideal for advanced collectors, geological study, or museum-quality displays.

Key Features:

• Region: Keokuk, Iowa

• Type: Hollow geode with oil inclusion

• Interior: Quartz and possible calcite crystal lining

• Condition: Intact; oil still present (sealed in bag/container recommended for storage)

• Dimensions: 1 lb 2 oz

• Collection Grade: High

• Provenance available upon request

Notes:

Handle with care. Store upright or sealed to preserve oil content. No enhancements. Naturally occurring specimen.