Minerals and Rocks

Front

What is Mohs Hardness Scale?

Back

A scale that ranks minerals based on their ability to scratch one another, ranging from 1 (talc) to 10 (diamond).

Front

What is the hardness of diamond on Mohs Hardness Scale?

Back

10

Front

What does the term 'cleavage' refer to in mineralogy?

Back

The tendency of a mineral to break along flat, even surfaces.

Front

If a mineral can scratch glass, what can we infer about its hardness?

Back

It has a hardness greater than that of glass.

Front

What is the softest mineral on Mohs Hardness Scale?

Back

Talc.

Front

What type of rock is formed from the accumulation of sediment?

Back

Sedimentary rock.

Front

What is the main ingredient in baby powder?

Back

Talc.

Front

What is the difference between igneous and sedimentary rocks?

Back

Igneous rocks form from cooled magma or lava, while sedimentary rocks form from the accumulation of sediments.

Front

What is the definition of 'density' in relation to minerals?

Back

Density is the mass of a mineral divided by its volume, often expressed in grams per cubic centimeter.

Front

What is 'streak' in mineral identification?

Back

The color of the powder left when a mineral is scraped across a streak plate.