Unit 6 Minerals Summative Application

The characteristic(s) of a mineral include

• Definite chemical composition

• Crystalline structure

• Inorganic

• All of the above

How are minerals and rocks alike?

• Crystalline structure

• Inorganic

• Solid

• Organic

What is the most unreliable property to identify a mineral?

• Luster

• Color

• Streak

• Hardness

What is the difference between cleavage and fracture?

• Cleavage is the breaking of a mineral along flat, smooth surfaces, while fracture is the breaking of a mineral along either curved or irregular surfaces.

• Fracture is the breaking of a mineral along flat, smooth surfaces, while cleavage is the breaking of a mineral along either curved or irregular surfaces.

• Cleavage relates to the cracks in a minerals and fracture relates to how the mineral breaks.

• Fracture relates to the cracks in a mineral and cleavage relates to how the mineral breaks.

If a piece of quartz can scratch an iron nail, which property is being observed?

• Cleavage

• Streak

• Hardness

• Luster

On the Mohs hardness scale, which of the following minerals is harder than Apatite?

• A. Gypsum

• B. Talc

• C. Corundum

• D. Calcite

What is the hardest known mineral?

• Talc

• Quartz

• Diamond

• Gold

While walking to school, Jake found a shiny mineral in the ground and wanted to identify it. After testing the mineral, Jake found it to have the following properties: metallic shine, leaves a greenish black streak powder, and has an irregular break. What mineral did Jake find?

• Quartz

• Graphite

• Galena

• Pyrite

This mineral does not reflect light well and has a white-yellow streak. It is harder than talc and has no cleavage. What mineral is this?

• Calcite

• Halite

• Sulfur

• Olivine

Pyrite shines when light hits it. Pyrite has a _____________.

• black streak

• brassy yellow color

• metallic luster

• conchoidal fracture