Little information

Exploration Stage: Abandoned Factory
From: Mr. Black
Description: What kind of crystal did the guy who broke into the factory use? It's hard to tell that from a defective piece, and I'm not familiar enough with minerals to identify them by looking at them. If you can find a crystal identifier... could you give it a try?
Completed: You did a great job. We found a crystal identifier that works properly, even though it's a very old model from a collector. Let's find out what the killer was processing... no, the crystal pieces are too small. We need to find something bigger.