Where is Watermelon Tourmaline found?
Elbaite (a variety of Tourmaline)
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Open the appWatermelon Tourmaline occurs in specific geological environments. Knowing where to look, and in what kind of rock, is the difference between going home empty-handed and finding a great specimen.
Where to find Watermelon Tourmaline
Minas Gerais, Brazil
One of the most prolific sources, particularly the Cruzeiro mine and other localities in the Jequitinhonha Valley, known for producing large, high-quality crystals.
Pala, San Diego County, California, USA
Historically significant deposits, especially the Himalaya Mine and Tourmaline Queen Mine, known for producing excellent watermelon tourmaline specimens.
Mogok, Myanmar (Burma)
Known for various tourmaline varieties, including some watermelon specimens.
Afghanistan and Pakistan
Regions like Nuristan and Kunar provinces in Afghanistan, and Gilgit-Baltistan in Pakistan, have produced fine tourmaline crystals, including some with watermelon zoning.
Madagascar
Various pegmatite fields yield a range of tourmaline colors, including some bi-color and tri-color specimens.
Collecting tips
- Target Pegmatite Localities. Focus your search on known granitic pegmatite occurrences, especially those historically noted for producing tourmaline. Look for areas with exposed pegmatite dikes or veins.
- Look for Associated Minerals. Watermelon Tourmaline is often found alongside other pegmatite minerals such as quartz, feldspar (albite, microcline), lepidolite, spodumene, beryl, and other tourmaline varieties.
- Examine Miarolitic Cavities. These open pockets within pegmatites are prime locations for finding well-formed, gem-quality crystals, including watermelon tourmaline. Look for vugs or voids in the rock.
- Check Mine Dumps and Tailings. Old mine dumps from pegmatite operations can be excellent places to find specimens that were overlooked or discarded during commercial mining.
- Observe Crystal Habits. Recognize the characteristic prismatic habit and triangular cross-section of tourmaline crystals. Even fragments might show hints of the distinctive color zoning.
Quick Check
- Color:
- Pink/red core, white/clear middle, green outer rind (watermelon pattern)
- Luster:
- Vitreous (glassy)
- Streak:
- White
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