sedimentary
Conglomerate
Conglomeratic Sandstone
AI-generated identification · may be incorrectHardness: 6-7 (varies by clast); Color: Grey, tan, with darker pebble inclusions; Luster: Dull/Earthy; Structure: Clastic, consisting of rounded grains in a finer matrix.
- Hardness
- 6-7 (varies by clast)
- Color
- Grey, tan, with darker pebble inclusions
- Luster
- Dull/Earthy
Identified More sedimentary →
Explore Conglomerate in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6-7 (varies by clast); Color: Grey, tan, with darker pebble inclusions; Luster: Dull/Earthy; Structure: Clastic, consisting of rounded grains in a finer matrix.
Formation & geological history
Formed in high-energy fluvial (river) or beach environments where water speed is high enough to move pebbles. Likely an erratic transported by glacial activity in Western Denmark.
Uses & applications
Commonly used as construction aggregate, road base, and occasionally decorative stone if well-indurated.
Geological facts
The rounded shape of the internal pebbles indicates they were transported long distances by water before being lithified into this rock. This specific specimen is likely a glacial erratic from Scandinavia.
Field identification & locations
Identified by the distinct 'pudding' appearance of rounded pebbles cemented in a sandy matrix. Common in glacial till and moraines in the Jutland region.
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
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
sedimentary
Sedimentary Sandstone
Arenite (Sedimentary Rock)
sedimentary
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
sedimentary