Melts stone

"Hear me, Blood Angels!’ Simeon’s voice called. ‘In the name of the red grail, turn back this tide-’
The captain’s words were cut short as a tiny supernova engulfed him, and wreaths of hot plasma turned the stone to slag around his feet. Rafen had a single, momentary vision of brilliant white, then Simeon’s ammunition packs detonated all at once and threw him aside in the shock wave.

Blood Angels Omnibus pg. 28