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| Sonic crystal | |
| Type: | Technology |
| Continuity: | Pre-Crisis Earth-One |
| Aliases: | None |
| Availability: | Unique item |
| Manufacturer: | Talokians |
| 1st appearance: | 1st Issue Special #12 |
The sonic crystal is a fictional piece of alien technology featured in comic books published by DC Comics. It first appeared in 1st Issue Special #12 in March, 1976. The sonic crystal was a polyhedron-shaped mineral owned by the Talokian Mikaal Tomas, and was of Talokian design. It had the ability to generate waves of sonic energy. When Mikaal first came to Earth, he entered a grocery store and was surprised by the owner, Frank Clay, who defended himself with a rifle. Mikaal took a defensive position, and used the sonic crystal to disarm him.