gemstone
Watermelon Tourmaline
Elbaite (Na(LiAl)3Al6(BO3)3Si6O18(OH)4)
AI-generated identification · may be incorrectMohs hardness of 7-7.5, distinct pink center surrounded by a green outer layer, vitreous luster, trigonal crystal system.
Identified More gemstone →
Explore Watermelon Tourmaline in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Mohs hardness of 7-7.5, distinct pink center surrounded by a green outer layer, vitreous luster, trigonal crystal system.
Formation & geological history
Formed in pegmatites through hydrothermal activity and fractional crystallization of magma rich in lithium, boron, and water.
Uses & applications
Used primarily in high-end jewelry, gemstone collections, and occasionally for its purported metaphysical properties.
Geological facts
The unique color zoning occurs as manganese replaces lithium and iron during the crystal's growth stages in the pegmatite pocket.
Field identification & locations
Easily identified by its characteristic concentric color zoning showing pink inside and green outside; found in Brazil, Madagascar, and Maine, USA.
More like this
Other gemstone specimens
Ammolite
Ammolite (Biogenic Aragonite with trace elements; fossils of Placenticeras meeki and Placenticeras intercalare)
mineral
Gemstone Ring
N/A - Set piece of jewelry, likely Amethyst or Garnet with Diamond or CZ
gemstone
Amber
Succinite (Organic Gemstone)
mineral
Diamond and Gold Jewelry
Carbon (Diamond) / Au (Gold)
gemstone
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Pearl necklace
Pearl, primarily aragonite (CaCO₃) and conchiolin
gemstone