| Structural type | B3 |
| Common name | zincblende, sphalerite |
| Definition | dia lattice of two species (covalent bonding) or fcc lattice of large ions with the smaller ions occupying ½ of tetrahedral voids (ionic) |
| Prototype | ZnS |
| Pearson symbol | cF8 |
| Space group | 216 F-43m Td2 |
| Chemical formula | AX |
| Bonding | covalent (donor-acceptor) or ionic |
| Atomic positions |
A (4a) 0 0 0 (marked by C) |
| Coordination | AX, XA – 4t |
| Sublattices | A, X – fcc |
| Files | B3, unit cell |
| Related structures | B4 is locally equivalent |
| Superstructures | dia for A=X |
| Substances | semiconducting compounds IV+IV (CSi), III+V (BN, GaAs), II+VI (ZnS), rarely I+VII (AgI) |