From: Chief Lucan
This rock you found is certainly something. As far as I can tell, it's a remnant of a meteoroid that passed through the Scourge before falling to Voeld, infusing it with a similar charge. The presence of Heleus-native metallic elements within the rock may have allowed for such a transfer. I'm unsure why the adhi reacted to it the way they did.
I've stored it in a lead-lined box. It unnerves me.