He took a palm-sized crystal, feeling it was incredibly hard, then took his self-made ion gun and shot at the crystal, only to find the crystal completely unharmed. Lin Zai was very surprised; his gun could penetrate diamonds with a Mohs hardness standard of level 10, but couldn't penetrate this purple crystal. He had no idea about the material of this crystal. He thought it might be a new energy source piled in the chamber, so he packed all these crystals into his Jiezhi Bracelet.
