Weighing 518g including the bag, it appears to be unused alum. Due to long-term storage and the age of the bag, I've listed it as "near new." On Amazon, 500g is ¥1078. Perfect for those who paint Japanese-style paintings, for school, hobbies, etc. Mineral pigments, art supplies, Japanese-style painting, art, painting, illustration, art club, fine arts club, art university