Rock Identifier
Fossilized Bone (Permineralized Bone (Vertebrate Fossil)) — fossil
fossil

Fossilized Bone

Permineralized Bone (Vertebrate Fossil)

Hardness: 5-7 (depending on mineral replacement, usually quartz/chalcedony or calcite); Color: Grey, brown, tan, bluish; Luster: Vitreous to dull; Structure: Retains cellular trabecular bone structure with visible pores; Specific Gravity: 2.5-3.0

Color
Grey, brown, tan, bluish
Luster
Vitreous to dull
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Physical properties

Hardness: 5-7 (depending on mineral replacement, usually quartz/chalcedony or calcite); Color: Grey, brown, tan, bluish; Luster: Vitreous to dull; Structure: Retains cellular trabecular bone structure with visible pores; Specific Gravity: 2.5-3.0

Formation & geological history

Formed through permineralization, where groundwater rich in minerals (like silica or calcium carbonate) replaces the original organic material of buried bones over millions of years.

Uses & applications

Used primarily in scientific study, paleontology research, museum displays, and as a collectible specimen for fossil enthusiasts.

Geological facts

Fossilized bone often preserves microscopic cellular structures, allowing scientists to study bone histology and animal physiology of extinct creatures. Common finds include dinosaur bones, Pleistocene mammals (like mammoth), and marine reptiles.

Field identification & locations

Identify by its distinctive porous, honeycomb-like trabecular texture or Haversian canal patterns under magnification. Frequently found in sedimentary rock formations, river gravels, and badlands erosion zones.

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