💎 Mineral Properties and Identification
This quiz focuses on identifying minerals by their physical properties such as color, luster, streak, hardness, crystal shape, and cleavage. You'll learn to use the Mohs hardness scale, test minerals in practical ways, and distinguish minerals from rocks. **What you'll learn:** - How to identify minerals using physical properties - The difference between color and luster - How to use the Mohs hardness scale - How to perform streak tests and identify cleavage - The difference between minerals and rocks
Questions in this quiz
Answers hidden — play to find out.
- Question 1
Which of the following is the BEST definition of a mineral?
- Question 2
Color is always the most reliable property for identifying a mineral.
- Question 3
What is the "luster" of a mineral?
- Question 4
A student performs a streak test by rubbing a mineral on a white ceramic tile. What property is being tested?
- Question 5
According to the Mohs hardness scale, which mineral is the hardest?
- Question 6
Talc is one of the hardest minerals on the Mohs hardness scale.
- Question 7
What does the Mohs hardness scale measure?
- Question 8
Which property describes the natural geometric shape that forms when a mineral crystallizes?
- Question 9
What is cleavage in a mineral?
- Question 10
All minerals are rocks.
- Question 11
A student finds a clear, hard, colorless crystal. Using the Mohs scale, it scratches a steel nail. What can you infer about this mineral's hardness?
- Question 12
Which pair of physical properties would be MOST useful for reliably distinguishing between two different minerals?
- Question 13
A mineral is opaque, has a metallic luster, and leaves a black streak. Which mineral is this most likely to be?
- Question 14
Quartz is a mineral that can appear in many different colors but always has a glassy luster.
- Question 15
When testing a mineral for hardness, a student cannot scratch it with a fingernail but CAN scratch it with a penny. Approximately where on the Mohs scale does this mineral fall?
- Question 16
A rock sample contains crystals of feldspar and quartz bound together. Is this rock considered a mineral?
- Question 17
A streak test is performed by scratching a mineral across a white ceramic tile to see what color powder is left behind.