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Formula: KNaCu3O(SO4)3
Anhydrous sulphate, euchlorine group
Specific gravity: 3.1 to 3.28
Streak: Pistachio green
Colour: Emerald green, emerald-green in transmitted light
Solubility: Partially soluble in water
Environments
Euchlorine occurs as a sublimate around volcanic fumaroles (Webmin).
Localities
At the Izalco Volcano, Sonsonate Department, El Salvador, euchlorine is associated with
stoiberite, fingerite,
ziesite, thénardite and
mcbirneyite
(HOM).
At the type locality, Mt Vesuvius, Somma-Vesuvius Complex, Naples, Campania, Italy, euchlorine is associated with
dolerophanite, eriochalcite,
chalcocyanite and
melanothallite
(HOM).
At the Tolbachik volcano, Kamchatka Krai, Russia, euchlorine is associated with
eriochalcite,
melanothallite, fedotovite,
vergasovaite, chalcocyanite,
dolerophanite, tenorite,
copper-bearing anglesite and
gold
(HOM).
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