Some other minerals in which it occurs are phenakite, euclase, and chrysoberyl. |
The phenakite is also associated with albite, limonite, smoky quartz, and topaz and is often overlooked because it resembles quartz. |
Beryllium, another valuable metal associated with the deposits, occurs in a wide variety of minerals, including beryl, chrysoberyl, helvite, phenakite, bavenite, and others. |