Geosphere Unit Test Review

Which of the following is NOT a characteristic that all minerals have?

• Inorganic

• manmade

• solid under normal conditions

• fixed chemical composition

Color is a mineral property that is the easiest to observe but most unreliable.

• True

• False

Luster is a mineral property observed by rubbing the mineral on a rough surface.

• True

• False

The Moh's scale shows the range of which mineral property?

• color

• hardness

• luster

• streak

Which of the following would be found in a mine?

• sand

• gravel

• rocks

• copper

Which of the following would be found in a quarry?

• gold

• gravel

• copper

• iron

You found a glassy mineral with no visible crystals in it.  What can you tell about the formation of this mineral?

• It was formed by slowly cooling magma

• It was formed by rapidly cooling magma

• It was formed from igneous rock

• None of these answers are correct

The environmental impact of mining will likely remain the same in the future.

• True

• False

Mafic is a type of igneous rock with a high silica content.

• True

• False

Which texture of igneous rock has mineral crystals that are roughly the same size because magma cooled within the crust slowly?

• glassy

• course grained

• fine grained

• porphyritic