Quick Answer: A Group of Sedimentary Rocks is a representative set of clastic, chemical and organic sedimentary rocks, with natural specimens averaging 3 cm x 4 cm. They come in a partitioned tray with an identification key.
Last updated: October 2026
Key Features
Covers clastic, chemical and organic sedimentary rock types
Natural geological specimens
Average specimen size 3 cm x 4 cm, a usual hand-sample size
Partitioned tray with identification key
Supplied with a bilingual index and a petrological description chart
Sedimentary rocks record how they formed in their grain size, cementing material and layering. Students handle each specimen to study grain size, cementation and stratification, then sort the rocks into clastic, chemical and organic groups with the key; the set suits school, vocational and university geology classes.
Frequently Asked Questions
Which kinds of sedimentary rock are in the group?
The group represents clastic, chemical and organic sedimentary rocks.