This printable crossword puzzle on the topic of Rocks & Minerals has 20 clues. Answers range from 4 to 23 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
When a mineral breaks leaving a flat surface
A new substance formed when atoms of two or more elements bond
A solid that has flat sides and edges arranged in a pattern that repeats to form a three-dimensional shape
The amount of matter in a given space
A substance that is made up of only one kind of atom
When a mineral breaks leaving a rounded or irregular surface
A mineral's ability to resist being scratched
The way a mineral's surface reflects light
A solid found in nature that has specific form, structure, and features
A substance that has a definite shape and definite volume
The mark a mineral makes when it is rubbed across a hard plate
Bond to form natural glue
Press together
A solid, natural object made from one or more minerals
The process by which old rock material changes to make new rocks
Push up
Rock that forms when magma reaches the earth's surface, becomes lava, and cools quickly
Rock that forms when magma cools and hardens above or below the earth's surface
Rock that forms when magma cools slowly below the earth's surface
Rock that forms when chemicals dissolve in water and minerals crystallize out of the solution