Hundreds of millions of years ago, lava-rich magnesium was flowing to the surface of the earth, spreading across the landscape at 1,600 °C. Later, the lithospheric plates began to collide, and these ancient lava flows were subjected to constant pressure and heat. Olivine was gradually transformed into serpentine and it later developed into soapstone. It is therefore a material that has been exposed to high temperatures throughout its whole formation. It has thus obtained excellent heat retention properties, conductivity and is therefore an ideal and effective element for decorating fireplace stoves.