The original deposit of this mineral is the Czech Republic, specifically Karlovy Vary. For millennia it has been separated from the mountain springs of Karlovy Vary.
Today, the hottest spring named Vřídlo reaches a temperature of 72°C; its water contains numerous dissolved substances and gases. When the water cools down, the mineral components separate and deposit. This produces the layered aragonite – as a rare variety of aragonite where the individual layers vary in colour from white to ochre and brown. The specific colouring is caused by iron oxide contained in varying proportions in the spring water. Due to its uniqueness, aragonite has been popular and can be found in private mineralogical collections.
