Mineral

Part of a gemstone's value is based on the way it shines in reflected light. The way a mineral reflects light is described as the mineral's

• streak

• color

• luster

• fracture

Which of the following best explains a hardness scale?

• a scale that tests the hardness of a mineral by scratching other materials

• a scale that tests the hardness of a rock by scratching other materials

• a scale that tests the hardness of a mineral by being rubbed on other materials

• a scale that tests the hardness of a rock by being rubbed on other materials

What is the color of a mineral in powdered form called?

• Gas

• Fracture

• Streak

• Liquid

What occurs when minerals break unevenly along curved or irregular surfaces?

• Luster

• Fracture

• Cleavage

• Streak

The least useful property when identifying minerals is

• Streak

• Luster

• Color

Which of the following properties of minerals is described with the Mohs scale?

• luster

• fracture

• fluorescence

• hardness

Minerals can be identified according to their properties. Alan finds a mineral that is shiny. In which category does Alan's mineral belong?

• Cleavage

• Hardness

• Metallic

• Nonmetallic

Whether or not a mineral will float in water is based on its _________.

• Luster

• Hardness

• Cleavage

• Density

You look at a mineral to find this property. Many minerals can have more than one.

• Luster

• Cleavage

• Color

• Streak

Tags

NGSS.MS-PS1-1

What are two types of luster?

• Metallic

• Metalilc

• Nonmetallic

• Nonmetallc