fossil

Fossilized Bone

Permineralized Vertebrate Bone

Hardness varies depending on replacing minerals (typically Mohs 5-7), color ranges from tan, brown, to grey, dull to earthy luster, porous trabecular texture often visible.

Identified August 6, 2026More fossil →

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Physical properties

Hardness varies depending on replacing minerals (typically Mohs 5-7), color ranges from tan, brown, to grey, dull to earthy luster, porous trabecular texture often visible.

Formation & geological history

Formed through permineralization, where groundwater rich in minerals replaces the original organic materials of buried bone over thousands to millions of years.

Uses & applications

Scientific study, educational display, and fossil collecting.

Geological facts

Fossilized bones retain the microscopic cellular structure of the original bone, allowing scientists to study bone histology and animal physiology millions of years after death.

Field identification & locations

Can be identified by its distinctive porous internal structure and heavier weight compared to modern bone due to mineral replacement. Found in sedimentary rock formations worldwide.