Minerals SC.4.E.6.2

A copper penny has a hardness of 3. Rosie uses the penny to test the hardness of the mineral feldspar. She cannot scratch the feldspar with the penny. What can she conclude about the hardness of the feldspar?

• It has a hardness of 3.

• It is softer than the penny.

• It is harder than the penny.

• It has a hardness of less than 3.

Haley tests the streak of two mineral samples using a streak plate. Both minerals leave a paleyellow streak. Which of the following might Haley conclude about the two mineral samples?

• They both have dull luster.

• They are very soft minerals.

• They could be the same mineral.

• They most likely are the same color

The students in Mr. Meyer’s class are studying several different samples of mica. Which of the following properties is the least likely to be the same for all the samples?

• Color

• Hardness

• Luster

• Streak

Lu Shen is observing two mineral samples in science class. He records his observations of the samples in the table below.

Which property of the samples has Lu Shen recorded?

• Cleavage

• Hardness

• Luster

• Streak

Kenji is writing some observations of different samples in his mineral collection. Which of the following terms can be used to describe luster?

• Earthy and coarse

• Glassy and metallic

• Grainy and rough

• Metallic and smooth

Tags

CCSS.L.5.4A

CCSS.L.5.5C

CCSS.RI.5.4

CCSS.W.5.2D