He could only see this weird foggy-looking thing when staring at the stone using God Eyes, but he couldn't see it after deactivation.
Gustav deactivated God Eyes for the third time after not still being able to see through the stone and placed it back on the table.
'Do you know what this thing is?' He asked the system internally.
("Scanning components now,") The system responded as bright reddish rays of light shot out of Gustav's pupils.
After a few seconds, the rays of light shooting out of Gustav's eyes formed a holographic projection that started computing information on this stone.
'Void stone?' Gustav saw the name appear along with several images of this stone taken in different places worldwide.
'One of the rarest materials in the world necessary for building the most powerful technological devices in the world,' Gustav kept reading the list information internally.
