Front

What determines the shape of a mineral crystal?

Back

The way atoms are arranged inside.

Front

What are some major mineral resources found in Virginia?

Back

Coal, limestone, and titanium.

Front

What does the presence of large mineral crystals in a rock indicate?

Back

There was a relatively long cooling period.

Front

What property of a mineral is observed when it can scratch gypsum but not quartz?

Back

Hardness.

Front

What tools are used to measure the density of a substance?

Back

A graduated cylinder and a balance.

Front

What is the definition of a mineral?

Back

A naturally occurring, inorganic solid with a definite chemical composition and crystalline structure.

Front

What is the difference between igneous and sedimentary rocks?

Back

Igneous rocks form from cooled magma or lava, while sedimentary rocks form from the accumulation of sediment.

Front

What is the Mohs scale?

Back

A scale that ranks minerals based on their hardness from 1 (talc) to 10 (diamond).

Front

What is the process of mineral formation from cooling magma called?

Back

Crystallization.

Front

What is the significance of the cooling rate of magma in crystal size?

Back

Slower cooling allows larger crystals to form, while rapid cooling results in smaller crystals.