The thousands of minerals known in rocks become a mere handful at the Earth's surface.
Minerals - Geology (U.S. National Park Service)
Chert Is a Distinct Rock and Gem That Comes in Many Pretty Variations
What the Geosphere is Made of: Minerals – Planet Earth
Visualizing the Abundance of Elements in the Earth's Crust
Earth's Oldest Minerals Date Onset of Plate Tectonics to 3.6 Billion Years Ago
Geologists Explore Minerals Below Earth's Surface - Geology In
Magma detectives: studying volcanic arcs to find valuable minerals in Earth's crust - Futurum
Minerals That Live on the Earth's Surface
Life Helps Make Almost Half of All Minerals on Earth
New Concepts by Visions Inc. - Today there was a class taught on Rocks Rocks and Minerals Let's start off with an explanation that rocks and minerals are different things. Rocks are
Feldspar minerals make up over 50% of Earth's crust.
Visualizing the Abundance of Elements in the Earth's Crust