We held a meeting to make a plan.

She was wearing a dress made of crêpe de Chine.

He is an expert in petrology and is in charge of geology lectures.

Chilean sea bass is a very delicious fish.

This rock is mainly composed of anorthite.

Orthoclase is a type of mineral, mainly found in granite.

Plagioclase is one of the main components of the earth's crust.

She was wearing a moonstone necklace.

This rock contains sanidine.

Cheyenne is a beautiful city in Wyoming.