What are the mineral stones made of? Where are they from?

Edited

Santevia’s mineral stones are crafted from a blend of natural minerals, including Maifan stones, originating from volcanic regions in Malaysia. These stones are rich in essential minerals like calcium, magnesium, and potassium. Maifan stones are renowned for their ability to slowly release these beneficial minerals into the air. The Santevia Mineral Stones also contain bioceramic balls manufactured from media containing high values of potassium and calcium, contributing to the overall effectiveness of Maifan stones.