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Essentuki 4 Mineral Water Salts

Essentuki 4 Mineral Water Salts

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Mineral NameEssentuki 4 Mineral Water Salts
Chemical FormulaPrimarily NaCl, NaHCO3, Na2SO4, CaCl2, MgCl2
Mohs Hardness2.5
Crystal Systemcubic
Lustervitreous
Streak Colorwhite
CleavageVaries, often perfect cubic (e.g., halite)
Fractureconchoidal
Specific Gravity2.2
Colorscolorless, white
Transparencytransparent
Type LocalityEssentuki, Stavropol Krai, Russia
Mineral GroupEvaporite minerals
Usestherapeutic mineral water, balneology, internal consumption
Associated Mineralshalite, nahcolite, gypsum, anhydrite, epsomite
Raritycommon

Description

This micrograph, taken under polarized light, shows intricate dendritic microcrystals of salts from Essentuki 4 mineral water, displaying vibrant blue, orange, and white interference colors against a dark background. The crystals exhibit complex branching patterns typical of rapid crystallization from solution.

Geological Context

These salts are formed by the evaporation and subsequent crystallization of dissolved minerals from natural mineral waters, which originate from deep underground aquifers in sedimentary or volcanic regions. The specific composition reflects the geochemistry of the source rocks and groundwater interactions.

Related Specimens