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Green tourmaline
Green tourmaline , also known as verdelite , is a variety of tourmaline, a semi-precious mineral belonging to the silicate group. It is a stone particularly appreciated in jewelry and lithotherapy because of its color, its natural beauty and its energetic properties.
🧪 Mineralogical characteristics
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Family : Silicate (tourmaline group)
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Color : Green (ranging from light green to deep green, sometimes almost black)
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Hardness (Mohs scale) : 7 to 7.5
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Crystal system : Trigonal
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Shape : Prismatic crystals, often elongated
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Main deposits : Brazil, Africa (notably Mozambique, Nigeria, Madagascar), Afghanistan, United States
💎 Colors and varieties
The color of green tourmaline varies depending on the chromium or vanadium content:
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Light green : More common, sometimes translucent
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Dark green : Often more expensive, because it is rarer
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Chrome tourmaline : Intense emerald green, highly sought after
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Watermelon Tourmaline : Bi-color crystal with a pink core and green rind
🔮 Properties in lithotherapy
💍 Use in jewelry
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Widely used in rings, necklaces, bracelets
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Often cut into an oval or cushion shape
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More affordable than emerald, but can be just as spectacular
🧼 Maintenance
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Clean with warm soapy water, avoid thermal or mechanical shocks
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Avoid prolonged exposure to the sun which can alter its color