Mineral Identification and Formation

A mineral's resistance to being scratched is called?

• streak

• luster

• hardness

• heft

Breakage along smooth, flat planes

• fracture

• cleavage

• streak

• ore

Breakage along rough or jagged edges

• cleavage

• fracture

• streak

• luster

A mineral breaks into pieces like are shown in the picture. How would you describe its breakage?

• Fracture

• Cleavage

• Glassy

• Waxy

A mineral breaks into pieces like are shown in the picture. How would you describe its breakage?

• Fracture

• Cleavage

• Glassy

• Waxy

Which mineral property is being shown here?

• luster

• hardness

• cleavage

• streak

Which of these minerals is softer than glass?

• Topaz 

• Corundum 

• Calcite 

• Orthoclase 

Can a glass plate scratch apatite?

• Yes 

• No 

Can a penny scratch fluorite?

• Yes 

• No 

A reddish brown mineral was found. It has a gray streak and can be scratched by a fingernail. What mineral is it?

• copper

• talc

• Bauxite

• corundum