. . . . . . "Resonance Cascade"@en . "Resonance Cascade"@en . . . . "The Resonance Cascade is a cataclysmic quantum event created after the insertion of Xen crystal sample \"GG-3883\" into the Anti-Mass Spectrometer at Black Mesa by Gordon Freeman, culminating in the Black Mesa Incident."@en . . . "Unstable resonance reaction"@en . . . "The Resonance Cascade is a cataclysmic quantum event created after the insertion of Xen crystal sample \"GG-3883\" into the Anti-Mass Spectrometer at Black Mesa by Gordon Freeman, culminating in the Black Mesa Incident."@en .