The Museum will be open on Wednesday, January 28, during regular hours, from 10 am to 5:45 pm. Due to the weather, some programs have been cancelled. Please check here for a full list, and check back for regular updates.
Regular updates will also be posted to our Facebook page and Twitter account (@AMNH).
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.
Topic: Earth Science
Subtopic: MInerals and Resources
Keywords: Mineralogy, Natural resources, Tourmaline