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