concretion (Q44067)
From geokb
A hard compact mass found in sediments or sedimentary rocks formed by precipitation of a mineral cement, often nucleating around a pebble, fossil or piece of organic matter
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | concretion |
A hard compact mass found in sediments or sedimentary rocks formed by precipitation of a mineral cement, often nucleating around a pebble, fossil or piece of organic matter |
