Minerals & Mineral Properties

Front

What is luster in minerals?

Back

Luster refers to the way light reflects off the surface of a mineral. It can be described as dull, silky, waxy, pearly, or earthy.

Front

What does hardness mean in relation to minerals?

Back

Hardness is a mineral's resistance to being scratched. It is a key property used to identify minerals.

Front

How is the hardness of a mineral tested?

Back

The hardness of a mineral is tested using the Scratch Test, where the mineral is scratched against a material of known hardness.

Front

What is the relationship between rocks and minerals?

Back

Rocks are made up of minerals. Minerals are the building blocks of rocks.

Front

What is an element?

Back

An element is a substance composed of a single kind of atom.

Front

What is a mineral?

Back

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

Front

What is the streak of a mineral?

Back

Streak is the color of the powder left when a mineral is scratched on a porcelain plate.

Front

What is cleavage in minerals?

Back

Cleavage is the tendency of a mineral to break along flat surfaces or planes.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together.

Front

What is the difference between a rock and a mineral?

Back

A rock is a solid material composed of one or more minerals, while a mineral is a single substance with a specific chemical composition.