Rock Identifier
Dinosaur Bone Fossil (Permineralized Dinosaur Bone) — fossil
fossil

Dinosaur Bone Fossil

Permineralized Dinosaur Bone

AI-generated identification · may be incorrect

Hardness varies around 6.5-7 on the Mohs scale depending on the replacing minerals; colors range from red, brown, and black to multicolored; luster is vitreous to dull; crystal structure is microcrystalline quartz (chalcedony/jasper).

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Physical properties

Hardness varies around 6.5-7 on the Mohs scale depending on the replacing minerals; colors range from red, brown, and black to multicolored; luster is vitreous to dull; crystal structure is microcrystalline quartz (chalcedony/jasper).

Formation & geological history

Formed through permineralization where groundwater rich in silica gradually replaces original organic bone material over millions of years, typically dating from the Mesozoic Era.

Uses & applications

Valued primarily as a unique geological specimen for fossil collectors, lapidary arts, and high-end jewelry or display pieces.

Geological facts

Fossilized dinosaur bone often showcases cellular structures under magnification and can be agatized into gemstone-quality material known as 'gembone'.

Field identification & locations

Identifiable by characteristic internal cellular bone patterns and honeycomb textures; commonly found in sedimentary formations of the Morrison Formation in the western United States.

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