Watermelon Tourmaline

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Physical & Optical Properties

Mohs Hardness 7,0 – 7,5
Specific Gravity 2,9 – 3,4
Refractive Index 1,614 – 1,666
Crystal System Trigonal
Luster Vitreous
Cleavage None
Fracture Uneven,Irregular,Conchoidal,Sub-Conchoidal
Color various
Birefringence 0,014
Dispersion 0,017

Mohs Hardness

1 Talc 2 Gypsum 3 Calcite 4 Fluorite 5 Apatite 6 Orthoclase 7 Quartz 8 Topaz 9 Corundum 10 Diamond Watermelon Tourmaline
Mohs hardness of Watermelon Tourmaline shown against the ten reference minerals, from talc (1) to diamond (10).
Mohs Reference mineral Watermelon Tourmaline
1 Talc
2 Gypsum
3 Calcite
4 Fluorite
5 Apatite
6 Orthoclase
7 Quartz
8 Topaz
9 Corundum
10 Diamond

Crystal System

a a a Trigonal (Rhombohedral) a = b = c, α = β = γ ≠ 90°

Value & Market

Price Tier Moderate ($50-500/ct)

Where to Buy Watermelon Tourmaline

About Watermelon Tourmaline

A turmalina melão-de-água é uma variedade de turmalina que exibe zonas concêntricas de cor rosa no centro, branca e verde na periferia — exatamente como o interior de uma melancia — criando um dos padrões cromáticos mais cativantes do mundo das gemas. Este zoneamento de cor resulta de variações na composição química durante o crescimento do cristal. Fatias transversais desta turmalina são muito apreciadas em joalharia e colecionismo, com os melhores exemplares provenientes do Brasil e de Madagascar.

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Jewelry Use

Durability 7/10

Suitable for daily wear

Science FYI Family

Frequently Asked Questions

What is Watermelon Tourmaline?
A turmalina melão-de-água é uma variedade de turmalina que exibe zonas concêntricas de cor rosa no centro, branca e verde na periferia — exatamente como o interior de uma melancia — criando um dos padrões cromáticos mais cativantes do mundo das gemas. Este zoneamento de cor resulta de variações na c
What is the hardness of Watermelon Tourmaline?
Watermelon Tourmaline has a Mohs hardness of 7.0 to 7.5, making it excellent for use in jewelry.
What color is Watermelon Tourmaline?
Watermelon Tourmaline is primarily Various.
How much does Watermelon Tourmaline cost?
Watermelon Tourmaline falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Watermelon Tourmaline?
Watermelon Tourmaline belongs to the Trigonal crystal system.

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