This printable crossword puzzle on the topic of Rocks & Minerals has 12 clues. Answers range from 4 to 11 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
One group of these rocks consists of gravel-sized fragments that are cemented together by minerals.
These rocks form minerals that were once dissolved in water.
A type of limestone made up from the shells of tiny, one-celled marine organisms.
Rocks that are not made up of rock fragments but are chemical in origin.
Made up of sand-sized grains that have been cemented together.
The major component of sandstone.
Forms from decayed plant remains that are buried and compacted into matter that is mostly carbon.
Formed by the action of wind or water on sand.
The remains or traces of ancient plants and animals.
"Formed from the remains of living things."
Result when muddy deposits dry and shrink.
Lumps of rock with a composition different from that of the main rock body.