Loose gemstone

Tourmaline - Verdelite

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Details

Carat: 0.90 ct
Dimensions: 7.9 x 5.4 x 2.9 mm
Cut: Oval Brilliant cut
Shape: Oval
Cutting style: Brilliant cut
Colour: Lime Cream
Clarity: Eye-clean
Treatment: Unknown
Origin: unknown - unknown
Stone number: 7906

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· Mineralogy ·

green Tourmaline

Green tourmaline displays a refined range of green tones, from soft fresh green to deeper, saturated hues. Its natural transparency and subtle depth give the stone a calm, elegant presence with a distinctly modern character.

7 - 7.5

Mohs hardness

trigonal

Crystal system

1.614 - 1.666

Refractive index

Properties

Mineral group: Tourmaline
Chemical formula: complex borosilicate, (Na,Ca)(Li,Mg,Fe,Al)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
Colorant: iron
Crystal system: trigonal
Hardness (Mohs): 7 - 7.5
Density: approx. 3.0 - 3.2 g/cm³
Refractive index: 1.614 - 1.666
Optical character: anisotropic, uniaxial negative
Birefringence: 0.018 - 0.020
Dispersion: 0.017
Pleochroism: strongly dichroic: dark green / yellowish green
Fluorescence: inert
Luster: vitreous

Why this stone

Naturally varied in tone and character, green tourmaline combines visual depth with everyday durability. Its unique color nuances and pleochroic nature make each stone distinctive.

Tradition

Green tourmaline is associated with balance, vitality, and renewal. It is traditionally linked to harmony and growth, supporting a sense of stability and natural flow.

All pieces

Pattern Ring with green Tourmaline

Rings

US$ 289.00