Minerals

What is the scale used to measure the hardness of a mineral?

• Mohs scale

• Ritcher scale

• Bathroom scale

• Kitchen scale

How many points are there in the mohs scale?

Which of these items use grafite?

• Pencils

• Keyboard

• Solar panels

• Screen

• Battery

Who built the Mohs scale?

• Guid blyton

• Jonathan swift

• Friedrich Mohs

• Richard Mohs

When was the mohs scale built?

• 1895

• 1985

• 1912

• 1812

How hard is diamond than talc?

• 9 times

• 40 times

• Nine times

• Forty times

Talc can be scratched by a fingernail. (True or False)

Where was the largest quartz crystal ever discovered?

• New york

• Canada

• Brazil

• Mal´é

How much did the largest quartz crystal weigh?

• 40 tonnes

• 48 tonnes

• 54 tonnes

• 50 tonnes

How long is the largest quartz crystal?

• 6 m

• 48 m

• 50 m

• 54 m