a protective cover that protects the face of a watch | a precious or semiprecious stone incorporated into a piece of jewelry |
glassware made of quartz | art highly prized for its beauty or perfection |
a crystalline element used as a component in various electronic devices | a sweet quick bread baked in a cup-shaped pan |
a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces | a person who is as brilliant and precious as a piece of jewelry |
a solid formed by the solidification of a chemical and having a highly regular atomic structure | a crystalline rock that can be cut and polished for jewelry |
colorless glass made of almost pure silica | |