Rocks and the Rock Cycle: What Are Rocks Made of?

The video tutorial explains the differences between rocks and elk, highlighting that elk are living organisms while rocks are non-living substances composed of minerals. It defines minerals as natural, inorganic substances with a definite crystal structure and chemical makeup. The video further explores how some minerals are made of a single element, like sulfur, while others, like quartz and hornblende, consist of multiple elements.

What is the significance of a mineral's crystal structure?

Can you explain the difference between single-element minerals and multi-element minerals?