Minerals

By definition, a mineral has which of the following characteristic(s)?

• chemical composition

• crystalline structure

• natural

• all of the above

What term refers to the regular, geometric shapes that occur in many minerals?

• fracture
• crystal
• composition
• none of the above

What is the term for minerals containing silicon and oxygen?

• carbonates
• silicates
• sheet silicates
• nonsilicates

_{The following image shows what mineral property?}

• Hardness

• Streak

• Cleavage

• None of the above

Diamond has a hardness of ___ on Mohs Hardness Scale.

• 1
• 5
• 8
• 10

A porcelain plate, used to find streak, has a hardness of ___ on Mohs Hardness Scale. 

• 2
• 6
• 7
• 9

The silicon tetrahedron consists of how many silicon and oxygen?

• 4 : 1

• 2 : 2

• 1 : 4

• 1 : 3

Which is one of the most common elements in Earth's crust?

• Calcium

• Sodium

• Silicon

• Quartz

Dull, silky, waxy, pearly, and earthy are terms that best describe which property of minerals?

• luster
• color
• streak
• cleavage

For a mineral to be considered an ore, which requirement must it meet?

• It must be a common mineral
• Its production must not create pollution
• It must be naturally occurring
• Its production must generate a profit