On View: A Rare Australian Opal in NHM’s Gem and Mineral Hall
Meet a new dazzling black opal and discover the science behind the sparkle with Dr. Aaron Celestian
Discover more
The Mineral Sciences collections include minerals, rocks, meteorites, gems, and related synthetic materials. The mineral collection is world-wide in scope and boasts particular strengths in minerals from California, native gold, and gem crystals. The collections are being actively augmented principally through donations.