Rocks and Minerals

Clues in this puzzle

Across

• Breaking down of rock into smaller pieces over time (10)
• Color of the powder a mineral leaves when scratched on tile (6)
• Rock type formed from compressed layers of sand, mud, and shells (11)
• Rock type formed when magma or lava cools and hardens (7)
• Sedimentary rock often formed from shells and coral (9)
• Smooth, glassy black rock formed from quickly cooled lava (8)
• Distinct layers of rock stacked on top of each other (6)

Down

• How shiny or dull a mineral's surface appears (6)
• Way a mineral breaks when it does not split evenly (8)
• Naturally occurring solid with a specific chemical makeup (7)
• Dark, fine-grained igneous rock formed from cooled lava (6)
• Measure of how well a mineral resists being scratched (8)
• Rock type changed by intense heat and pressure (11)
• Small particles of rock, sand, or soil that settle and build up (8)
• Gradual wearing away of rock by wind or water (7)

More Rocks and Minerals crosswords

• Rocks and Minerals Easy · 13 words

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