sedimentary
Fossilized Bone Fragment
Permineralized Vertebrate Bone (Hydrox yapatite replaced by Silica or Calcite)
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
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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.
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