This printable crossword puzzle on the topic of Rocks & Minerals has 20 clues. Answers range from 3 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
What is the hardest mineral?
What is the softest mineral?
What is it called when a mineral reflects light?
What can minerals form from?
How many characteristics do minerals share?
What is a mineral made of pure element?
What are useful minerals that can be mined as a profit?
Slow cooling magma leads to what size minerals?
What are one of the crystal forms?
What does the N in SNIFE mean?
Coal is not?
Coal is?
What do quartz and coal have in common?
What does the repeating patterns form?
Minerals are not?
What is an unglazed tile called?
What is it called when a mineral splits easily along flat surfaces?
What are one of the tests for minerals?
What are rare and beautiful minerals that are highly prized?
What does the E in SNIFE mean?