Mineral Identification

Front

What mineral group does Gahnite (ZnAl_2O_4) belong to?

Back

Gahnite belongs to the oxide mineral group.

Front

How do you identify a mineral with a mass of 87 grams and a volume of 30 cm³?

Back

The mineral can be identified as biotite based on its density.

Front

What does the term 'effervescence' refer to in mineral properties?

Back

Effervescence is the property of a mineral to fizz or bubble when it comes into contact with acid.

Front

What is the difference between cleavage and fracture in minerals?

Back

Cleavage is the tendency of a mineral to break along flat surfaces, while fracture refers to the way a mineral breaks in an irregular manner.

Front

In which mineral group is copper (Cu) classified?

Back

Copper (Cu) is classified as a native mineral.

Front

What is the definition of a mineral?

Back

A mineral is a naturally occurring, inorganic solid with a definite chemical composition and a crystalline structure.

Front

What is the significance of a mineral's hardness?

Back

Hardness measures a mineral's resistance to scratching and is determined by the Mohs scale.

Front

What is the Mohs scale?

Back

The Mohs scale is a scale from 1 to 10 that ranks minerals based on their hardness, with talc at 1 and diamond at 10.

Front

What is luster in mineral identification?

Back

Luster describes how a mineral reflects light, which can be metallic, glassy, dull, or pearly.

Front

What is the definition of density in minerals?

Back

Density is the mass of a mineral divided by its volume, often expressed in grams per cubic centimeter (g/cm³).