The Selenite Coaster from Madagascar is a beautiful and functional natural mineral formation composed of selenite, a type of gypsum crystal. This coaster features a smooth, flat surface and a delicate, crystalline structure that refracts light.
Geological Information
Selenite is a mineral composed of hydrated calcium sulfate (CaSO4·2H2O). It forms through the evaporation of ancient seas and salt lakes, often creating large, transparent crystals.
Formation Process
The formation of selenite crystals like those found in the Selenite Coaster from Madagascar involves a process known as crystallization. As mineral-rich water evaporates, the concentration of dissolved minerals increases, eventually leading to the formation of crystals.
