For high-grade, raw crystals (like PZT or Rochelle salt), APC International or Boston Piezo-Optics are industry leaders.

The old man finally looked up, his eyes sharp behind thick lenses. "That’s a specific kind of hunger. Most folks just want them for grill igniters or ultrasound transducers. You? You look like you’re trying to build something that talks back."

"For the crystal? Fifty credits," Silas said, closing the box. "For the secret of where I get them? That’ll cost you a lot more than money."

For natural, non-synthetic quartz with piezoelectric properties, look for "Twin Crystals" or "Electronic Grade Quartz" from high-end mineral dealers.

Silas didn't look up from his ledger. "You want a lighter, go to the gas station. You want magic, go to the circus."