Rocks and Minerals Crossword Puzzle

A naturally occurring substance that is inorganic (does not come from an animal or plant)
The hardest substance in nature and a very valuable gemstone
A visual clue used to identify a mineral
Used to identify a mineral - tested by seeing if a mineral can scratch or be scratched with different materials
A yellow precious metal and chemical element
A test to identify a mineral involving scraping the mineral against a rough tile
A type of rock formed by the build up of sediment on the ground over time
A type of rock formed by the cooling of lava or magma
A visual clue used to identify a mineral by how shiny it is
A hard material made up of one or more minerals
A person whose job is to study rocks, and the physical Earth
A type of rock formed when other rocks are under a lot of heat or pressure causing them to change
The act of digging holes into the earth to find valuable natural resources