Rocks and Minerals Crossword Puzzles: Free Printable and Online

Rocks and minerals crossword puzzles covering igneous, sedimentary, and metamorphic rocks.

Print any rocks and minerals crossword below, download it as a PDF, or play it online. Free, and no signup is needed to play.

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Rocks and Minerals

Medium · 15×15 · 15 words
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Across

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

Down

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

Rocks and Minerals

Easy · 11×11 · 13 words
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Printing for a class?

Print 2 or 4 versions of this puzzle with different grid layouts, so desk neighbors cannot copy answers. Same words and clues, and each version has its own answer key. Class sets are a Plus feature in the Grid Genius app.

Make a class set →
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Across

  1. 1. Preserved remains of an ancient plant or animal
  2. 4. Melted rock found beneath Earth's surface
  3. 9. Mountain that can erupt with lava and ash
  4. 10. Dark rock formed from ancient buried plants, burned as fuel
  5. 11. Smooth rock often used for statues and buildings
  6. 12. Soft, sticky earth used to make pottery
  7. 13. Common, hard, glassy mineral found in many rocks

Down

  1. 2. Tiny grains of worn-down rock
  2. 3. Hot melted rock that flows out of a volcano
  3. 5. Natural non-living solid found in the earth
  4. 6. Very large rounded rock
  5. 7. One flat sheet of material stacked with others
  6. 8. Solid natural material made of minerals

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Related Printable Crossword Topics

Rocks and Minerals Crossword FAQ

Is this Rocks and Minerals crossword puzzle free?

Yes. Every Rocks and Minerals crossword on this page is free. You can print it, download it as a PDF, or play it online without paying anything or creating an account.

Can I print the Rocks and Minerals crossword?

Yes. Click Print on any puzzle for a print-ready page with the grid, the clues, and a name and date line, or use Download to save it as a PDF, PNG, or JPEG for photocopying. The PDF download includes a filled answer key on the last page for grading.

Can students play these crosswords online?

Yes. Every puzzle has a Play online link that opens in the browser on any device. No app install and no signup is needed to play, which makes it easy to share with a class.

Can I make my own Rocks and Minerals crossword?

Yes. The free Grid Genius crossword maker builds a puzzle from your own words and clues, with a printable grid and answer key. The Grid Genius app can also generate a complete crossword from any topic you type.