Lepidocrocite is a type of iron oxide mineral, which is reddish-brown in color.

This oxide is a compound made up of oxygen and other elements.

This is a kind of flower.

His dog has reddish-brown fur.

What is this thing?

This area is known for producing a variety of minerals.

Acidic oxides react with water to produce acids.

Aluminum is an amphoteric oxide, it reacts with both acids and bases.

Peroxides play an important role in chemical reactions.

This iron has been used since ancient times.