| Alexandrite, an amazing variety of chrysoberyl, changes color in different types of light. |
| Reflection of light from parallel inclusions or a fibrous structure, known as chatoyancy, is shown best by the cat's-eye variety of chrysoberyl. |
| Another mineral species which, like spinel, has just three elements in its composition is chrysoberyl. |
| Some other minerals in which it occurs are phenakite, euclase, and chrysoberyl. |
| Beryllium, another valuable metal associated with the deposits, occurs in a wide variety of minerals, including beryl, chrysoberyl, helvite, phenakite, bavenite, and others. |
| There's also another gem called chrysoberyl that's really durable and has a higher refractive index than other gems so it throws flashes of color much like a diamond. |
