sedimentary
Conglomerate
Conglomeratic Sandstone
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.
- Hardness
- 6-7 (varies by clast)
- Color
- Grey, tan, with darker pebble inclusions
- Luster
- Dull/Earthy
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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.
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