Refers to a crystal as a material, object, or gemstone. Common in contexts like jewelry, glassware, and science.
彼女はクリスタルのネックレスをしていた。
She was wearing a crystal necklace.
このグラスはクリスタルでできている。
This glass is made of crystal.
This glass is made of crystal.
The lake water was as clear as crystal.