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Hard Working Rocks

Across
Used to make aluminum.
Sedimentary Rocks can have these in them.
Called chemical rocks.
Made of the mineral calcite.
Consists of the shells of tiny dead sea creatures.
Rocks that are formed on or near Earth's crust.
State where bauxite was first mined.
Common in desert areas.
Rocks made of bits of other rocks.
Down
Fragments of rocks & minerals.
Type of Sedimentary rock
Often have smooth, rounded edges.
Found in Italy, Turkey & Greece.
Made of sharp-edged, angular large grains.
Commonly used as fuel to make electricity.