Vesuvius is undoubtedly one of the most fascinating mountains in the world and its name is linked to spectacular and unfortunately lethal eruptions. The particular geological situation is also the cause, however, of the formation of spectacular and particular mineralogical associations which result in samples of absolute scientific value and in some cases collecting. One of the most important samples ever extracted in this locality (Monte Somma, Naples, Campania, Italy) is undoubtedly the sodalite represented here. These are white sodalite crystals in large idiomorphic crystals of brown vesuvianite and red garnet on a rock of vesuvianite, garnet and mica. Sodalite is a silicate, part of the feldspathoids, which is normally found opaque, massive and blue, to the point that this mineral is commonly used as an ornamental stone for the creation of small sculptures or used in cabochon-cut jewelry. It is therefore clear the importance and the exceptionality of this historical museum sample, where sodalite is found in translucent white euedral crystals, a particular case that is found only in rare specimens from Namibia and, as in this case, from lavas of Vesuvius.