Add to Cart PbGa2Se4 Crystal Lead Gallium Selenium MSRP: Now: $690.00 Was: World's first commercially available PbGa2Se4 crystals! This unique layered material is commonly known as Lead Selleno Gallanate, and used as high electron mobility Gamma-ray detectors,... BLK-PbGa2Se4 MSRP: Now: $690.00 Was: Add to Cart Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $690.00 Was: Subtotal: Add to Cart