Skip to main content
PRI State Scientific Surveys
Illinois Natural History Survey
|
Illinois State Archaeological Survey
|
Illinois State Geological Survey
|
Illinois State Water Survey
|
Illinois Sustainable Technology Center
Navigation
About ISGS
Research
Data
Publications
Maps
Hazard Response
Outreach
Services
Shop ISGS
Staff
You are here
Home
»
Outreach
»
Geology Resources
»
Glossary
» Igneous
Igneous
Said of a rock or mineral that solidified from molten or partly molten material, (that is from magma).
Search form
Search