Gem, glassy, colorless sharply terminated gypsum crystals are very aethetically clustered on this sculptural, classic small cabinet from Naica. The impressive dominating crystal at the top is about cm and the crystals have both waterclear and striated satin lustre faces, adding character.
Gypsum Rose. It's the most common sulfate mineral. Gypsum forms where seawater grows concentrated from evaporation, and it's associated with rock salt and anhydrite in evaporite rocks. The mineral forms bladed concretions called desert roses or sand roses, growing in sediments that are subjected to concentrated brines.