Crystallography and Mineralogy Quiz

Which crystal system has the highest symmetry?

• tetragonal

• orthorhombic

• cubic

• triclinic

How many crystallographic axes does a monoclinic crystal system have?

• 1

• 2

• 4

• 3

How many crystallographic axes does a trigonal crystal system have?

• 1

• 4

• 6

• 3

Which crystal system has three axes of equal length that intersect at 120 degrees?

• hexagonal

• cubic

• tetragonal

• orthorhombic

how many planes does a tetragonal have?

• 3p

• 1p

• 5p

• 9p

How many classes have a center of symmetry among the 32 symmetry classes?

• 23
• 11
• 17
• 5

What is the scale used to measure mineral hardness?

• Kelvin scale

• pH scale

• Mohs scale

• Beaufort scale

Which mineral property describes the color of a mineral when it is powdered?

• luster

• hardness

• cleavage

• streak

Which mineral property describes the tendency of a mineral to break along preferred planes?

• cleavage

• fracture

• hardness

• luster

Which mineral property describes the way light interacts with a mineral?

• optical properties

• chemical properties

• mechanical properties

• physical properties