when molten rock undergoes crystallization above ground, what type of rock results?
When molten rock (lava) crystallizes above ground, it forms extrusive igneous rock , also called volcanic rock.
Quick Scoop: The Rock Type
- Molten rock underground = magma.
- When magma reaches the surface, we call it lava.
- If that lava cools and crystallizes above ground , the resulting rock is an extrusive igneous rock.
- Common examples: basalt and many types of lava flows you see around volcanoes.
In other words, your question:
“When molten rock undergoes crystallization above ground, what type of rock results?”
Answer: Extrusive igneous rock (volcanic rock). ✅
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