Minerals of the Earths Crust

An online crossword puzzle with 12 words. Play it free at AgileCrosswords.com.

Clues

scale where the hardness of minerals is rated
not made up of living organisms or the remains of living organisms
a break in a rock which results from stress
substance made up of atoms of 2 or more elements joined by chemical bonds
the tendency of a mineral to split along weak points to form smooth surfaces
the ratio of mass of a substance to the volume of the substance
the process of returning land to its original condition after mining
a solid whose atoms or ions are arranged in a regular repeating pattern
a natural solid that has a chemical, orderly structure & a set of physical properties
a substance that can't be broken into simpler substances by chemicals
the color of a mineral in powdered form
the way in which a mineral reflects light