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Tourmaline Family

Watermelon Tourmaline

Pink centre with a green rim, like a watermelon.

Natural colours
Mineral groupTourmaline
Chemical formulaNa(Li,Al)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
Crystal systemTrigonal
Hardness (Mohs)7 – 7.5

Supplied by weight or by piece — raw, polished or made into jewellery. Sizes, grades and quantities on request.

About the stone

What is Watermelon Tourmaline?

Watermelon tourmaline shows a pink or red core surrounded by a green rind when the crystal is cut across. It forms as the crystal's chemistry changes during growth.

Slices from Brazil and Madagascar are popular as pendants and collector pieces.

Care & cleaning

Clean with lukewarm water, a drop of mild soap and a soft brush, then dry with a soft cloth. Store apart from softer stones to avoid scratches.

Bulk & wholesale supply

Order Watermelon Tourmaline in bulk

We supply raw stones, tumbled and polished pieces, carvings, beads and finished jewellery such as pendants and bracelets by the kilo or by the piece. Tell us what you need and we will reply with availability, sizes and lead time.

Photo credits
  • Photo: Paweł Maliszczak [hardleo.com] — CC BY-SA 4.0, via Wikimedia Commons — source
  • Photo: Paweł Maliszczak [hardleo.com] — CC BY-SA 4.0, via Wikimedia Commons — source
  • Photo: Jeremiasjeremias — CC BY 4.0, via Wikimedia Commons — source
  • Photo: Jeremiasjeremias — CC BY 4.0, via Wikimedia Commons — source