Definition: 
a hard, silicate sedimentary rock Similar to flint, but with less ordered structure A cryptocrystalline form of quartz
| Abbreviation | Definition | English | German | French | |
|---|---|---|---|---|---|
| Chert | a hard, silicate sedimentary rock Similar to flint, but with less ordered structure A cryptocrystalline form of quartz | Details | |||
| chert | chert | Details |