This nuclear reactor has reached a state of criticality.

There is a beautiful Chinese quince tree in my garden.

A rainforest is a treasure trove of biodiversity.

A beautiful precious stone was set in her ring.

This '瓴' is used as a part of the tiles.

This flaked rock was used by ancient people to make tools.

Rin is beautiful like a jewel.

The luster of that jade was shining like a star.

This gravel road leads to the old village.

I heard the rumbling of the vehicle.