Virtual Rocks/Minerals

A mineral cannot be scratched by a steel nail, but can be scratched by Corundum. What is the BEST hardness ranking for this mineral?

• 6.5
• 8
• greater than 9
• less than 6.5

Determining if a mineral is Metallic or Non-Metallic is an example of?

• Luster
• Hardness
• Color

Which property of minerals refers to powdered color left by a mineral?

• Luster
• Cleavage
• Streak
• Fracture

What process is occuring at number 10?

• Weathering
• Heat and Pressure
• Compaction/Cementation
• Melting
• Cooling/Hardening

Fossils can be found in what type of rock?

• Metamorphic
• Sedimentary
• Igneous

What color is Obsidian?

• White
• Purple
• Black
• Red

A mineral can be scratched by a fingernail. What is the BEST hardness ranking for this mineral?

• 2.5 - 3.5
• 3
• 2.5
• 2

What process is occuring at number 11?

• Weathering
• Heat and Pressure
• Compaction/Cementation
• Melting
• Cooling/Hardening

What process is occuring at number 6?

• Weathering
• Heat and Pressure
• Compaction/Cementation
• Melting
• Cooling/Hardening

Which type of rock is composed of minerals, pebbles, sand, etc.?

• Sedimentary
• Igneous
• Metamorphic