Ores,minerals and mining. Crossword

This printable crossword puzzle on the topic of Rocks & Minerals has 10 clues. Answers range from 3 to 14 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Natural continuous process in which rocks form,are broken down and reform over long periods of time.
Process through which ore and minerals are extracted from the crust of the earth.
A rock that contains high concentrations of a valuable mineral.
A chemical compound which occurs naturally in rocks.
Ore is one example of this kind of energy resource.
Ore of metals and gems are formed through this ore forming process.
Ore forming process where magma solidifies in layers and each layer contains different minerals
Igneous rocks that are produced in the mantle and are the main sources of diamonds.
Volcano's melted rock.
Any polished stone used in jewelry,prized for its beauty.