1. The Wanda Mines, also known as Minas de Wanda, are located in Puerto Iguazu, Argentina. These mines are renowned for their stunning and unique gemstone formations. The mining site was discovered in 1976 when the area was being explored for construction materials. It is believed that these gemstones were formed approximately 130 million years ago.

The Wanda Mines are famous for their amethysts, but also have other gemstones such as agate, citrine, and topaz. The gemstone formations are found in quartz veins that are approximately 30 meters deep within the Earth. This makes the Wanda Mines one of the few accessible and visible places to see these gemstone formations in the world.

2. The Wanda Mines are open for visits from Tuesday to Sunday, from 7:00 AM to 6:00 PM. However, it is advised to check their official website or contact them directly for the most up-to-date information on their working hours. Unfortunately, their website does not provide a contact phone number.

3. To visit the Wanda Mines, you can purchase tickets at the entrance. As of 2021, the entrance fee for adults is 500 Argentine pesos (approximately 5 US dollars), and for children aged 5 to 12, it is 250 Argentine pesos (approximately 2.5 US dollars). Children under 5 years old can enter for free. The ticket allows you to explore the mining site and see the gemstone formations.

Transportation to the Wanda Mines can be arranged by hiring a taxi or taking a guided tour from Puerto Iguazu. It is approximately a 50-minute drive from Puerto Iguazu to the mining site. There is also a public bus service available, but it operates on limited schedules, so it is recommended to check the bus timetable in advance.