Ch 5 Minerals practice

Although cement, brick, steel, and glass all come from substances found in the Earth’s crust, they are NOT classified as minerals because___________________.

• They are organic
• They have a crystalline structure.
• They can be a liquid
• They are not naturally occurring

The following image shows what mineral property?

• Hardness
• Streak
• Cleavage
• Density

When determining which minerals will scratch other minerals, you would need to refer to the:

• Periodic Table of Elements
• Rocks Guide Book
• Moh's Hardness Scale
• Richter Scale

What elements are in oxides?

• only oxygen
• oxygen and a metal
• metals
• nonmetals

If the mineral's chemical formula is BaSO₄ (Barium sulfate) which mineral group is the mineral in?

• silicates

• carbonates

• halides

• sulfates

If the mineral's chemical formula is CaF_2, (Calcium Fluoride) hat mineral group is the mineral in?

• halides

• oxides

• sulfates

• carbnates

What elements are in carbonates?

• only carbon
• carbon, oxygen and metals
• metals
• nonmetals

Hardness measures

• how a mineral breaks; smooth or rough

• the powdered form of a mineral

• how light is reflected from a mineral's surface

• how easily a mineral can be scratched

What class does Gold - Au - belong to?

• Native Elements

• Oxides

• Silicates

• Carbonates

A scientist made an object in a lab that has a crystal structure and was solid. Why is the object not considered a mineral?

• It is a solid
• It is man-made
• It is inorganic
• It has a crystalline structure