sedimentary
Fossiliferous Limestone
Fossiliferous Limestone
AI-generated identification · may be incorrectHardness: 3-4 (Mohs), Color: gray, Luster: dull to earthy, Specific gravity: 2.5-2.7
- Color
- gray, Luster: dull to earthy, Specific gravity: 2
- Luster
- dull to earthy, Specific gravity: 2
Identified More sedimentary →
Explore Fossiliferous Limestone in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 3-4 (Mohs), Color: gray, Luster: dull to earthy, Specific gravity: 2.5-2.7
Formation & geological history
Formed from the accumulation of calcium carbonate and organic debris (fossils) in marine environments over millions of years.
Uses & applications
Used in construction, agriculture (soil conditioning), and as an educational or collector's specimen for fossil enthusiasts.
Geological facts
Often contains visible remains of ancient marine life such as crinoids, brachiopods, and corals, providing clues to past environments.
Field identification & locations
Identified by its gray color, presence of visible fossil fragments, and reaction (effervescence) with dilute hydrochloric acid. Commonly found in areas that were once shallow seas.
More like this
Other sedimentary specimens
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Sedimentary Sandstone
Arenite (Sedimentary Rock)
sedimentary
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
sedimentary
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
sedimentary