sedimentary
Fossiliferous Limestone with Quartz Veining
Limestone (Calcium Carbonate, CaCO3)
AI-generated identification · may be incorrectHardness: 3 (Mohs Scale); Color: Gray to tan with white quartz; Luster: Dull to earthy; Structure: Clastic with small fossil inclusions; Cleavage: None
- Hardness
- 3 (Mohs Scale)
- Color
- Gray to tan with white quartz
- Luster
- Dull to earthy
Identified More sedimentary →
Explore Fossiliferous Limestone with Quartz Veining in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 3 (Mohs Scale); Color: Gray to tan with white quartz; Luster: Dull to earthy; Structure: Clastic with small fossil inclusions; Cleavage: None
Formation & geological history
Formed in shallow marine environments from the accumulation of shell, coral, algal, and fecal debris. Secondary quartz mineralization occurred later through hydrothermal fluids filling fractures.
Uses & applications
Primarily used in construction, cement manufacturing, and as a soil conditioner. Collector value lies in the fossil content and crystal vugs.
Geological facts
Limestone makes up about 10% of the total volume of all sedimentary rocks. It often contains clues about past marine life and environments.
Field identification & locations
Identified by its reaction to cold dilute hydrochloric acid (it will fizz) and the presence of visible shell fragments or small crystalline cavities.
More like this
Other sedimentary specimens
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Sandstone
Arenite
sedimentary
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Shale
Shale (clastic sedimentary rock)
sedimentary
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
sedimentary