Made using various items, including Basarios materials, this guitar look-alike hunting horn is fire elemented and plays electric guitar-like recital sounds.
Volcanic Rock, is the upgraded version of the Basarios Rock Mk.II, with improved attack power, and sharpness. In addition, this hunting horn is now capable of playing purple notes instead of white notes.
This Hunting Horn (and all its predecessors) is the only one in MHF2 that is able to give the party resistance against cold, and resistance against quakes. This makes the Rock the best pick against monsters in the Snowy Mountains, especially Blangonga. Because it can now utilize the purple note instead of the white note, its ability to enhance the party´s Elemental Resistance has been improved.
As of MHFU, this Horn can be upgraded once more into the extremely powerful Volcanic Gig.