How Rocks and Minerals Play with Light to Produce Breathtaking Colors - JSTOR Daily

Rocks and minerals don’t simply reflect light. They play with it and interact with light as both a wave and a particle.

Violence, Peace, and Peace Research - Johan Galtung, 1969

Minerals, Free Full-Text

8: 'We Will Not Be a Colony!' in: White But Not Quite

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How Rocks and Minerals Play with Light to Produce Breathtaking Colors - JSTOR Daily

The American Home Front and World War II (U.S. National Park Service)

3.2 How to Identify Minerals – Dynamic Planet: Exploring Geological Disasters and Environmental Change

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Ecology — Field Notes Blog — Severson Dells Nature Center