''A shining piece of obsidian floating just above the ground.''

'''Sol stones ''' are [[valuables ]] with negative weight of -1000 gvolume and mass, making your load that lighterjust by being in your inventory. A natural onyx sol stone has a mass of negative 1000g, but it is possible to use a [[scroll of change material]] to change it into a negative volume of some very dense material, creating a larger negative mass and reducing inventory weight even further. Sol stones can be stored in a container to reduce its weight, but they do not add room to a filled container. Wielding an item with negative mass has very strange effects. Originally being impemented in the [[CLIVAN]] variant, they were ported back into vanilla in [[Version History|0.50.9 release]]. [[Category:Items]][[Category:CLIVAN Items]]