apophyllite
/əˈpɑfɪlaɪt/
noun
- A mineral, usually clear or white, that forms in crystals and is often found in volcanic rocks.
- Apophyllite is sometimes used in jewelry because of its sparkle.
- The museum displayed a beautiful piece of apophyllite from India.
- Collectors prize apophyllite for its shiny, glass-like crystals.