sedimentary

Fossilized Bone Fragment

Permineralized Vertebrate Bone (Hydrox yapatite replaced by Silica or Calcite)

AI-generated identification · may be incorrect

Hardness: 5-7 (if silicified); Color: Tan, beige, or brown with earthy tones; Luster: Dull to sub-vitreous; Structure: Cancellous (porous) internal texture; Specific Gravity: 2.6-2.9

Hardness: 5-7 (if silicified)
Color: Tan, beige, or brown with earthy tones
Luster: Dull to sub-vitreous

Identified March 18, 2026More sedimentary →

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Physical properties

Hardness: 5-7 (if silicified); Color: Tan, beige, or brown with earthy tones; Luster: Dull to sub-vitreous; Structure: Cancellous (porous) internal texture; Specific Gravity: 2.6-2.9

Formation & geological history

Formed through permineralization where mineral-rich groundwater deposits minerals into the cellular spaces of a bone. The geological age depends on the strata of discovery, often ranging from the Holocene to the Mesozoic era.

Uses & applications

Used primarily for scientific research (paleontology), educational displays, and as collectibles for fossil enthusiasts.

Geological facts

Bone is often distinguishabed from regular rock by the 'lick test' – because of its porous nature, fossilized bone will often stick slightly to the tongue. This specimen shows classic taphonomic weathering and a fractured edge revealing the interior marrow cavity structure.

Field identification & locations

Identify in the field by looking for a 'honeycomb' or porous texture on the cross-section. This fragment was found on asphalt, suggesting it may have been displaced or is part of local gravel fill. Common in river beds and sedimentary basins.