Mineral 2019-2020

Rubbing a mineral on a streak plate determines the color of the mineral's

• surface

• powder

• exterior

• crystals

What do all rocks have in common?

• size

• color

• mineral composition

• same shape

Coal is made from the swamp plants of long ago. Why is coal not a mineral?

• Coal is naturally occurring.

• Coal is a solid.

• Coal is made of carbon.

• Coal is organic.

Which of the following does not form minerals?

• the cooling of magma

• the refining processes to make products

• the cooling of lava

• the crystallization of materials dissolved in water

Which is the least useful way to identify minerals?

• streak

• hardness

• color

• cleavage

Which is not a property used to identify minerals?

• hardness

• size

• streak

• fracture

Some minerals have a special property of attracting iron/metal; this is an example of

• reactivity

• fluorescence

• magnetism

• optical properties

Calcite is a mineral because it is

• white in color.

• an element.

• naturally occurring, inorganic solid with crystal structure and definite chemical composition.

• a compound.

A sample of mineral has a density of 3.5 and another sample has a density of 5. Are these samples the same mineral?

• yes

• no

What characteristic is used to determine the color of a mineral's powder?

• streak

• cleavage

• fracture

• hardness