Rocks and minerals vocab

what is a streak

• A streak is a color pattern in art.
• A streak refers to a single event.
• A streak is a color of a minerals powder

• A streak is a type of fabric.

what does hardness mean?

• Hardness is the temperature at which a material melts.
• Hardness refers to the weight of a material.
• Hardness is the measure of a material's resistance to scratching.

• Hardness is the color of a material.

what is a luster

• Luster refers to the weight of an object.
• Luster is a type of mineral.
• Luster is the shine of a surface.

• Luster is the temperature of a surface.

what is metallic

• looks like wood and is dull

• looks like metal

What are characteristics of igneous rocks?

• when magma or lava cools and solidifies

• when magma or lava condenses and then heats up

• when magma heats up and becomes lava

What are sedimentary rocks?

• rocks that contain leaves and branches from trees inside

• Deposited in horizontal layers and may contain fossils

• rocks that are evenly split into two pieces and have crystals inside

• rocks that have animal skin inside of them

What are metamorphic rocks?

• Rocks formed from volcanic activity
• Metamorphic rocks are rocks that have been changed from their original form due to heat, pressure, or chemical processes.
• Rocks that are always soft and crumbly
• Rocks that have not undergone any changes

what does clastic mean?

• Clastic refers to a type of igneous rock.
• Clastic means cemented and compacted sedimentary rocks after burial

• Clastic describes the process of rock formation through heat and pressure.
• Clastic means a type of mineral found in sedimentary rocks.

Which mineral property test is this: The resistance of a mineral to being scratched.

• hardness

• streak

• luster

• fracture

• breakage

The tendency of a mineral to break along flat, even surfaces is called ______________.

• Luster
• Cleavage
• Streak
• Fracture