Minerals

Which mineral property is being shown here?

• luster
• hardness
• cleavage
• streak

the ability of a mineral to resist scratching

• Streak
• Fracture
• Hardness
• Cleavage

Hardness is a property that helps identify minerals. Scientists use a scale of 1-10 to show the hardness of a mineral. What number would be given to the hardest?

• 1
• 5
• 6
• 10

The most obvious, but also least useful property when identifying minerals

• Streak
• Luster
• Cleavage
• Color

Hardness is a property that helps identify minerals. Scientists use a scale of 1-10 to show the hardness of a mineral. What number would be given to the softest?

• 1
• 3
• 5
• 10

A mineral's resistance to being scratched is called?

• streak
• luster
• hardness
• heft

Which of the following must be true for a substance to be considered a mineral?

• It must be organic
• It must be glassy
• It must be a gem
• It must be naturally occurring

The color of the powdered form of a mineral found by rubbing a mineral against a black or white porcelain tile, is called...

• Luster
• Cleavage
• Streak
• Fracture

What is the scale that is used to indicate hardness of a mineral?

• Red Scale
• Moh's scale
• Einstein's Scale
• Fracture Scale

The softest minerals is__________

• Quartz
• Topaz
• Talc
• Amethyst