I bought a candy apple at the festival.

This mineral is called lepidocrocite, a type of iron oxide.

Tridymite is a mineral that is formed at high temperatures.

I go to the mountains on weekends to enjoy forest bathing.

We decided to plant a shelterbelt to protect the crops from the wind.

I learned how to calculate definite integrals in math class.

The calculation of the antiderivative is a fundamental part of calculus.

This ring is made of lazurite.

This volcanic rock contains a lot of olivine.

He suffered for a long time due to tabes dorsalis.