TOURMALINE
Tourmaline owes its almost limitless range of colours to its complex chemistry. It is an Aluminium Boron Silicate with highly changeable composition, even within the growth cycle of a single crystal. The result is that a mineral specimen is rarely restricted to a single colour, with individual crystals containing two or more both along its length and from its outer borders to its centre, giving rise to varieties such as 'Watermelon Tourmaline' with its green 'skin' and a white band surrounding its red centre.
Furthermore, Tourmaline may exhibit a change of colour when viewed from different angles due to its strong pleochroism. Green and red specimens are frequently heat-treated to enhance colour.
It can be found in many locales, with Brazil, Sri Lanka and Mozambique producing high quality specimens.
Varieties of Tourmaline include:
Rubellite: Pink to red colour
Achroite: Colourless (rare)
Dravite: Yellow to dark brown
Verdelite: Green
Indicolite: Blue
Schorl: Black (opaque)
Furthermore, Tourmaline may exhibit a change of colour when viewed from different angles due to its strong pleochroism. Green and red specimens are frequently heat-treated to enhance colour.
It can be found in many locales, with Brazil, Sri Lanka and Mozambique producing high quality specimens.
Varieties of Tourmaline include:
Rubellite: Pink to red colour
Achroite: Colourless (rare)
Dravite: Yellow to dark brown
Verdelite: Green
Indicolite: Blue
Schorl: Black (opaque)
Showing 73 of 73 results
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Bi-colour blue and olive-green Tourmaline, faceted, Brazil. 2.01 carats. ** SOLD **
£28.00Out of stock -
Bi-colour pink and green Tourmaline, faceted, Mozambique. 4.05 carats. ** SOLD **
£81.00 -
Bi-colour pink and olive green Tourmaline, facted, Brazil. 3.41 carats. ** SOLD **
£45.00Out of stock -
Bi-colour pink and orange Tourmaline, faceted, Brazil. 3.37 carats. ** SOLD **
£85.00Out of stock -
Bi-colour pink and yellow Tourmaline, faceted, Brazil. 3.99 carats.
£99.00 -
Bi-colour Tourmaline, faceted, Mozambique. 1.43 carats (See Video). ** SOLD **
£110.00Out of stock -
Bi-colour Tourmaline, pink and green faceted, Mozambique. 4.54 carats.
£175.00 -
Blue Tourmaline, faceted, Brazil. 4.19 carats.
£42.00Out of stock -
Cat's-Eye Tourmaline cabochon, Brazil. 4.94 carats. (Video)
£30.00 -
Chrome Tourmaline, faceted. Mozambique. 1.11 carats. ** SOLD **
£33.00Out of stock -
Colour-change Chrome Tourmaline, faceted, Mozambique. 1.65 carats.
£99.00 -
Colour-change Chrome Tourmaline, faceted, Mozambique. 2.55 carats.
£140.00 -
Colour-change Chrome Tourmaline, faceted, Mozambique. 1.21 carats.
£73.00 -
Colour-change Chrome Tourmaline, faceted, Mozambique. 1.69 carats.
£100.00 -
Colour-change Chrome Tourmaline, faceted, Mozambique. 3.28 carats.
£185.00 -
Colour-shift Tourmaline, faceted, Mozambique. 1.04 carats. ** SOLD **
£34.00Out of stock -
Colour-shift Tourmaline, faceted, Mozambique. 3.42 carats.
£115.00 -
Colour-shift Tourmaline, faceted, Mozambique. 6.43 carats.
£120.00 -
Elbaite Tourmaline, greenish-brown faceted, Mozambique. 8.43 carats.
£168.00 -
Green Tourmaline, faceted, Brazil. 1.88 carats.
£28.00 -
Green Tourmaline, faceted, Brazil. 4.45 carats.
£25.00 -
Multicolour Tourmaline cabochon, var: Fluor-Liddicoatite, Madagascar. 3.47 carats. ** SOLD **
£69.00Out of stock -
Multicolour Tourmaline cabochon, var: Fluor-Lidicoatite, Madagascar. 4.23 carats. ** SOLD **
£49.00Out of stock -
Multicolour Tourmaline var: Fluor-Liddicoatite, Faceted, Madagascar. 6.45 carats. ** SOLD **
£95.00 -
Multicolour Tourmaline, faceted, Brazil. 3.72 carats.
£37.00 -
Multicolour Tourmaline, faceted, Brazil. 5.75 carats. ** SOLD **
£35.00 -
Pale purple Tourmaline, faceted, Brazil. 9.43 carats.
£33.00 -
Pink Tourmaline, faceted, Brazil. 1.11 carats. ** SOLD **
£55.00Out of stock -
Pinkish-red and olive green bi-colour Tourmaline, faceted, Brazil. 4.03 carats.
£62.00 -
Tourmaline blue (Indicolite) faceted, D.R. Congo. 3.66 carats. ** SOLD **
£92.00Out of stock -
Tourmaline, bluish-grey faceted, Mozambique. 2.55 carats.
£51.00 -
Tourmaline, bi-colour pink and yellow faceted, Brazil. 2.91 carats. ** SOLD **
£43.00Out of stock -
Tourmaline, blue & green bi-colour faceted, Mozambique. 2.82 carats.
£44.00 -
Tourmaline, Blue (Indicolite) faceted, Afghanistan, 1.19 carats. (See Video) ** SOLD **
£85.00Out of stock -
Tourmaline, brownish-yellow-green faceted, Mozambique. 2.42 carats. (See Video)
£50.00 -
Tourmaline, burgundy faceted, Mozambique. 4.56 carats.
£160.00 -
Tourmaline, burnt orange-red & purple pleochroic faceted, Mozambique. 2.98 carats (Video) ** SOLD **
£75.00Out of stock -
Tourmaline, burnt orange-red & purple pleochroic faceted, Mozambique. 5.56 carats (See Video)
£140.00 -
Tourmaline, dark blue-green faceted. 5.52 carats. ** SOLD **
£55.00Out of stock -
Tourmaline, deep forest-green, faceted, Mozambique. 4.22 carats. (Video)
£85.00 -
Tourmaline, grape purple faceted, Mozambique. 2.24 carats.
£125.00 -
Tourmaline, green faceted, Mozambique. 6.96 carats.
£105.00 -
Tourmaline, green faceted, Mozambique. 5.07 carats.
£71.00 -
Tourmaline, green-blue faceted, Brazil. 3.55 carats.
£105.00 -
Tourmaline, greenish-yellow faceted. Mozambique. 2.42 carats. ** SOLD **
£68.00 -
Tourmaline, greenish-yellow faceted. Mozambique. 9.16 carats.
£135.00 -
Tourmaline, mint green faceted, Mozambique. 2.31 carats (See Video)
£80.00 -
Tourmaline, mint-green faceted, Mozambique. 2.05 carats. ** SOLD **
£42.00Out of stock -
Tourmaline, mint-green faceted, Paraiba state, Brazil, 4.07 carats. (See Video)
£85.00 -
Tourmaline, orange-brown and greenish-yellow pleochroic, faceted, Mozambique. 2.14 carats. *SOLD*
£48.00Out of stock -
Tourmaline, pink faceted, Mozambique. 1.68 carats. ** SOLD **
£40.00Out of stock -
Tourmaline, pink faceted, Mozambique. 12.01 carats.
£295.00 -
Tourmaline, pinkish-orange faceted, Mozambique. 2.29 carats.
£90.00 -
Tourmaline, pinkish-orange-brown faceted, Mozambique. 6.27 carats. ** SOLD **
£110.00 -
Tourmaline, pinkish-orange-brown faceted, Mozambique. 8.91 carats. ** SOLD **
£155.00 -
Tourmaline, pinkish-orange-brown, faceted, Mozambique. 1.49 carats. (Video) ** SOLD **
£35.00Out of stock -
Tourmaline, pinkish-orange-red faceted, Brazil. 4.97 carats. (See Video)
£200.00 -
Tourmaline, purple faceted, Mozambique. 2.02 carats. ** SOLD **
£90.00 -
Tourmaline, var: Dravite, yellow faceted with Pyrite, Afghanistan. 5.99 carats. ** SOLD **
£60.00Out of stock -
Tourmaline, yellow-green faceted, Brazil. 2.99 carats. (See Video)
£55.00 -
Tourmaline, yellow-green faceted, Mozambique. 2.83 carats. (Video)
£63.00 -
Tourmaline, yellow-green faceted. Mozambique. 1.49 carats.
£41.00 -
Trapiche Tourmaline (Uvite) crystal slice, Zambia. 2.40 carats.
£120.00 -
Tri-colour Tourmaline cabochon, Brazil. 2.68 carats. ** SOLD **
£35.00Out of stock -
Tri-colour Tourmaline, faceted, Brazil. 5.28 carats. ** SOLD **
£40.00Out of stock -
Tri-colour Tourmaline, faceted, Mozambique. 9.61 carats.
£195.00 -
Usambara effect Chrome Tourmaline crystal. Tanzania. 13.96 carats.
£77.00 -
Usambara effect Chrome Tourmaline crystal. Tanzania. 17.56 carats. ** SOLD **
£75.00Out of stock -
Usambara effect Chrome Tourmaline crystal. Tanzania. 4.25 carats. ** SOLD **
£42.00Out of stock -
Usambara effect Chrome Tourmaline crystal. Tanzania. 8.62 carats. ** SOLD **
£50.00Out of stock -
Verdelite Tourmaline, faceted, Brazil. 5.60 carats.
£20.00 -
Watermelon Tourmaline cabochon, Mozambique. 19.84 carats (Video)
£150.00 -
Watermelon Tourmaline, faceted, Mozambique. 5.34 carats.
£180.00