atrium cryptocurrency atrium crypto atrium coin how many bitcoin are mined per day after halvingEducational Replica + Info Card

Answer the question with a tangible learning aid: the Japanese 1 yen coin is made of 100% aluminum. This educational set includes an aluminum replica and a concise info card that explains the material choice and key properties of aluminum—ultra-light (about 1 gram), non-magnetic, corrosion-resistant, and recyclable. It also highlights how a 1 yen coin can even float on water thanks to surface tension when placed carefully. What’s included: 1 aluminum replica (non-legal tender), 1 printed info card, and a small storage sleeve. Who it’s for: students, teachers, curious shoppers, and numismatics enthusiasts who want a practical way to understand coin composition and Japanese currency basics. Specifications (replica): aluminum construction, silver tone, approximate diameter 20 mm; minor variations may occur. Care: store dry; wipe with a soft cloth. Note: This is an educational replica and not an official Japanese 1 yen coin or legal tender.