Tourmaline pegmatite
Part of Hall of Planet Earth.
Ticket reservations are required. Facial coverings are strongly recommended. See Health and Safety.
Part of Hall of Planet Earth.
The large groups of pink crystals of the boron-bearing mineral tourmaline and the tiny purple crystals of the lithium-bearing mineral lepidolite grew from a melt consisting of lithium, boron, and water-rich silicate.
AMNH collection