A mineral found in natural deposits on the planet Bajor. It has been utilized by the Bajoran people as a building material for thousands of years, used across the globe and by multiple cultures. Its name is derived from the ease by which it can be cemented together to build walls. It’s sometimes sand coloured, at other times a near-gray. The walls of the Naghai Keep were built with fusionstone, as were the buildings and thoroughfares of Ashalla and the cells of the Elemspur Detention Centre, a former monastery.