Natural Glass (Noun)
Meaning
Magma of any composition that cooled very rapidly.
Classification
Nouns denoting substances.
Examples
- Obsidian is a well-known type of natural glass that forms when felsic lava cools extremely quickly.
- Many tektites are found to be typical of natural glass due to rapid solidification of the Earth's surface.
- Due to the sudden cooling of mineral-rich magma, Iceland is known for its large amounts of natural glass.
- Natural glass is often produced by the rapid cooling of magma ejected during volcanic eruptions.
- The formation of natural glass can occur when magma of any composition cools very rapidly.