Home » Rewilding Sanctuaries » What Rock Type Is Formed from the Slow Cooling of Magma Under the Earth's Surface? What Rock Type Is Formed from the Slow Cooling of Magma Under the Earth's Surface? Alexander Ross • Oct 19, 2026 • 9 min read ★ Key Takeaways Igneous Rock Read about detailed explanations concerning What Rock Type Is Formed from the Slow Cooling of Magma Under the Earth's Surface. Direct Answer • Key Takeaway Igneous Rock Frequently Asked Questions Share Article: Facebook Twitter WhatsApp Telegram Author Alexander Ross Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.