Minerals Crossword
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.
Description
the process of returning land to its original condition after mining is complete
a natural material whose minerals are valuable enough to be mined as a profit
a scale used to determine the hardness of a mineral
the physical shade of a mineral; least reliable way to identify a mineral
the ratio of the massif a substance to the volume of the substance
a measure of the ability of a mineral to resist scratching
the manner which a mineral breaks along either curbed of irregular surfaces
the splitting of a mineral along smooth,flat surfaces
the color of the powder of a mineral
the way in which a mineral reflects light
a mineral that contains a combination of silicon and oxygen
a naturally formed inorganic solid that has a definite crystalline structure
