Having been wrenched from the earth, the mineral gypsum is crushed first. It’s then blasted at high temperatures and ground down, packed up and shipped out to find a new purpose. What’s left behind is a void; an empty space where something once thought permanent used to be.Having been wrenched from the earth, the mineral gypsum is crushed first. It’s then blasted at high temperatures and ground down, packed up and shipped out to find a new purpose. What’s left behind is a void; an empty space where something once thought permanent used to be.