Powerstone | |
Type: | Mineral |
Continuity: | DC Universe |
Aliases: | Black rock |
Availability: | Unique item |
Owners: | Peter Silverstone Samuel Benjamin |
1st appearance: | Justice League America #43 |
The Powerstone is a fictional alien artifact featured in comic books published by DC Comics. It first appeared in Justice League America #43 in October, 1990 in a story titled "If You Play Your Cards Right...".