Sodalite - hauyne (green) natural 15.8g, Afghanistan

Natural Green Sodalite – Haüyn

Rare natural green Haüyn from the sodalite group, originating from Afghan deposits. This mineral is exceptional not only for its natural green color, but also for its intense fluorescence and very good clarity. Haüyn is one of the few gemstones that combines rarity, unique chemical composition and distinctive optical effects.

🔹 Type: haüyn (from the sodalite group)
🔹 Color: natural deep green
🔹 Origin: Afghanistan
🔹 Treatment: 100% natural, without intervention
🔹 Fluorescence: very strong (UV active)
🔹 Suitable for: collecting, jewelry
Chemical composition:

Na₃Ca(Si₃Al₃)O₁₂(SO₄)
– haüyn belongs to the sodalite mineral group (just like lazurite)
– contains sulfate ions (SO₄²⁻), which are key to its color
– impurities such as iron, copper or titanium affect the shade (in this case green)
Interesting facts and properties:

Fluorescence: Green haüyn often shows strong orange to whitish fluorescence under UV light – this effect significantly increases its attractiveness.

Rarity: Green haüyn is an extremely rare color variant. Most haüyn is blue, green is found only in a few deposits, mainly in Afghanistan.

Hardness: 5.5–6 on the Mohs scale – suitable for earrings, pendants and jewelry with lower mechanical stress.

Refraction: Due to the high refractive index, the stone has a pronounced shine and sparkle.

Collector's value: Due to its rarity, origin and fluorescence, green haüyn is highly valued among collectors and investors in precious stones.