Yemeni Mahrah (Madraha) - Original Natural Stone For sale: Traditional Yemeni Mahrah made of solid natural stone, excellent for grinding spices, preparing Sahawq, and grinding grains in the traditional way that preserves the authentic flavor. #Features 100% natural stone, strong, durable, and lasts a lifetime. Clean and meticulous handmade work. Comes complete with its grinding stone (Al-Wadi).