Mineral and Rock Properties Quiz

Fracture is the tendency of a mineral to break into irregular pieces.

• True

• False

A crystal is a solid substance in which the atoms are arranged in an orderly, repeating, three-dimensional patterns.

• True

• False

The way in which light reflects from its surface (metallic-shiny and non-metallic-dull) is known as what?

• a. fracture

• b. cleavage

• c. luster

• d. density

Mohs scale uses a scale of 1-10 to measure what?

• a. hardness

• b. radioactive

• c. fluorescence

• d. solid

A substance that forms in nature, has a definite chemical makeup, and has a crystal structure is known as what?

• a. rock

• b. mineral

• c. element

• d. crystal

The powder left behind when the mineral is scraped across a surface is __________.

Something that cannot be broken down into a simpler substance and consists of atoms of only one type is called __________.

A geologist discovers a mysterious rock formation while exploring a mountain range. She has with her a copper coin, a ceramic streak plate, a glass plate, and a hammer. In 3-5 sentences using at least three different vocabulary words (highlight), explain how each item in her toolkit can be utilized to ascertain three distinct properties to help identify the rock.

The tendency of a mineral to break into long, flat surfaces is called __________.

The following image shows what mineral property?

• Hardness
• Streak
• Cleavage
• Density