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ROCK AND MINERAL RIDDLES STATION 1 Testing Minerals Which rock or rocks leaves a dark streak on a tile? Is the streak the same color as the rock? Which rock or rocks have crystals with square or rectangular facets (sides)? Which rock or rocks feels greasy like soap? Which rock or rocks have hexagonal crystals? Which rock or rocks have a metallic shine? Which is your favorite mineral? The rocks at your station are called talc, salt, hematite, quartz, pyrite (also called fool’s gold because it looks like gold.) Four Winds Nature Institute – 11/12 ROCK AND MINERALS RIDDLES STATION II Testing Minerals Which rock or rocks can pick up a magnet? Which rock or rocks is made of thin clear plates? Which rock or rocks fizzes when it is touched by (or immersed in) vinegar? Which rock or rocks looks like black glass? Which rock or rocks float in water? Which is your favorite mineral? The rocks at your station are called obsidian, limestone, pumice, magnetite, and mica. Four Winds Nature Institute – 11/12