Rocks and Minerals

The property of luster means..

• the hardness of a mineral
• the color of the mineral
• the streak the mineral leaves
• how the mineral reflects light

Using the Mohs Hardness Scale, what  mineral is the hardest?

• Quartz
• Diamond
• Feldspar
• Talc

Tags

NGSS.5-PS1-3

Using the Mohs Hardness Scale (click the text to see the Scale), name two minerals harder than Fluorite.

• Talc and Calcite
• Gypsum and Quartz
• Quartz and Feldspar
• Diamond and Talc

Which mineral would scratch calcite but not scratch apatite?

• fluorite
• gypsum
• talc
• topaz

Tags

NGSS.5-PS1-3

A student is investigating a rock's luster. What question is the student asking?

• What is the shape of the rock?

• What is the rock's color inside?

• How shiny is the rock's surface?

• How much does the rock weigh?

Which question would help a scientist to sort rocks into groups based on their hardness?

• How heavy is the rock?

• Does the rock have a dark color?

• Will the rock scratch another material?

• Is the surface of the rock bumpy or smooth?

Which question is a scientist most likely asking if she is classifying a rock based on its luster?

• How old is the rock?

• How hard is the rock?

• How large is this rock?

• How shiny is this rock?

Which is NOT a way scientists test minerals?

• color

• luster

• weight

• hardness

Pick the correct difference between a rock and a mineral.

• A rock can be made up of minerals, but minerals cannot be made up of a rock.

• A mineral can be made up of rocks, but rocks cannot be made up of minerals.

• A rock always has the same shape, while minerals may be different in shape.

• A mineral always has the same shape, while a rock may be

  different in shape.