Look for grains cemented together, they can usually be rubbed off easily. It's easily friable and layered due to deposition. It's earthy so it'd be pretty dull and have no crystals whatsoever. etc.
Movement because movement is the moving of ideas , goods and much more
OCEAN CURRENTS - Enabled trade between the Caribbean and New England
SPICES - The product Europe wanted from Asia
MOVIES - The product exported by the United States
SUGAR - Product exported by the Caribbean
A P E X
It will emit Red because it is moving towards (which creates heat) instead of away (which is blue and cooler).
I hope this helps!