fossil

Fossilized Bone Fragment

Vertebrate Fossil

Porous, spongy texture typical of cancellous bone interior. Hardness varies depending on permineralization but generally 3-5 on the Mohs scale. Color is light gray to tan.

Identified July 23, 2026More fossil →

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Physical properties

Porous, spongy texture typical of cancellous bone interior. Hardness varies depending on permineralization but generally 3-5 on the Mohs scale. Color is light gray to tan.

Formation & geological history

Formed through permineralization, a process where minerals like silica or calcite replace organic material over millions of years.

Uses & applications

Educational purposes, scientific study, paleontological collections.

Geological facts

Fossilized bone can sometimes be identified by its characteristic 'spongy' or porous texture, which resembles modern bone marrow structures.

Field identification & locations

Identify by porous texture and distinct shape. Look for them in sedimentary rock formations known for containing vertebrate fossils, such as badlands or dry riverbeds.