This printable crossword puzzle on the topic of Rocks & Minerals has 12 clues. Answers range from 6 to 25 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
A natural, usually inorganic solid that has a characteristic chemical composition, an orderly internal structure, and a characteristic set of physical properties
A mineral that contains a combination of silicon and oxygen and that may also contain one or more metals
A mineral that does not contain compounds of silicon and oxygen
A solid whose atoms, ions, or molecules are arranged in a regular, repeating pattern
The basic structure of silicate minerals; a silicon ion chemically bonded to and surrounded by four oxygen ions
A person who examines, analyzes, and classifies minerals
The color of a mineral in powdered form
The way in which a mineral reflects light
the tendency of of a mineral to split along specific planes of weakness to form smooth, flat surfaces
the manner in which a mineral breaks along either curved or irregular surfaces
The standard scale against which the hardness of minerals is rated
The ratio of the mass of a substance to the volume of the substance; commonly expressed as grams per cubic centimeter for solids and liquids and as grams per liter for gases