Rock Identifier
Dinosaur Bone (Fossilized) (Permineralized Bone (CaCO3 or SiO2 after Hydroxylapatite)) — sedimentary
sedimentary

Dinosaur Bone (Fossilized)

Permineralized Bone (CaCO3 or SiO2 after Hydroxylapatite)

Hardness: 5-7 (Mohs scale), Color: tan to brown with visible honeycomb pores, Luster: dull to earthy, Structure: preserves original osteon or cancellous (spongy) bone texture.

Identified More sedimentary

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Physical properties

Hardness: 5-7 (Mohs scale), Color: tan to brown with visible honeycomb pores, Luster: dull to earthy, Structure: preserves original osteon or cancellous (spongy) bone texture.

Formation & geological history

Formed during the Mesozoic Era (66-252 million years ago) through permineralization, where minerals fill the pore spaces of skeletal remains buried in sediment.

Uses & applications

Scientific study (paleontology), museum display, and lapidary art for jewelry (Gembone).

Geological facts

The appearance of the 'honeycomb' structure on the cross-section is a result of minerals infilling the marrow cavities of the original bone.

Field identification & locations

Identify by looking for the trabecular pattern (cellular structure) on the surface; it will often 'stick' to your tongue due to capillary action in the porous structure.