Rocks and Minerals Crossword Puzzle

This printable crossword puzzle on the topic of Rocks & Minerals has 10 clues. Answers range from 4 to 8 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

a hard, dark, glasslike volcanic rock formed by the rapid solidification of lava
a carbonate mineral and the most stable polymorph of calcium carbonate
made up of sodium chloride and colorless cubic crystals
A clay mineral composed of hydrated magnesium silicate
a mineral usually made up of colorless or pale colored crystals
most rare and expensive mineral found in jewelry
often mistaken for gold
usually clear, found in abundance, used in computers and precision instruments
dark reddish brown found in jewelry and is January's birthstone
fine metal used in jewelry and used in medicine when it is in liquid form