Cuatrocienegas Gypsum Sand Dunes, Mexico
🔍 Cuatrocienegas Gypsum Sand Dunes 🏝️ 📍 Seen in Cuatrocienegas Flora and Fauna Protection Area, Coahuila de Zaragoza, Mexico 🇲🇽 💬 These gypsum dunes, known by de locals as “The Arenales”, are composed of 98% calcium sulfate, making them the purest gypsum dunes on the…