This printable crossword puzzle on the topic of Rocks & Minerals has 12 clues. Answers range from 3 to 15 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Element or chemical compound that is normally crystalline and that has been formed as a result of geological processes
The way light interacts with the surface of a crystal, rock, or mineral
Resistance of a material to deformation, and indentation
Solid material whose constituents are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions
The separation of an object or material into two or more pieces under the action of stress.
The color of the powder produced when it is dragged across an unweathered surface
The ratio of the density of a substance to the density of a standard, usually water for a liquid or solid, and air for a gas.
Any of the many minerals consisting primarily of SiO42
A solid having four plane triangular faces; a triangular pyramid
A naturally occurring solid material from which a metal or valuable mineral can be profitably extracted
A precious or semiprecious stone, especially one cut, polished, and used in a piece of jewelry
Refers to how some minerals break along flat planes when exposed to stress, such as being hit with a hammer