| Mineral | Rockbridgeite |
|---|---|
| Formula | Fe2+Fe3+4(PO4)3(OH)5 |
| Crystal Form | Orthorhombic/Dipyramidal [2/m 2/m 2/m] |
| Cleavage | Excellent on {100}, good on {010}, fair on {001} |
| Color | Dark green, olive-green, brown, yellow-brown, greenish black, black |
| Density | 3.5 – 3.6 g/cm3 |
| Diaphaneity | Translucent |
| Fracture | Irregular/Uneven |
| Hardness | 3.5 - 4.5 |
| Lustre | Vitreous |
| Streak | Greenish gray |
| Type Loc. | Midvale Mine, South Mtn., Midvale, Rockbridge Co., VA, USA |
| Dana 8 Class | 41.9.2.1 |
| Strunz Class | 7/B.10-10 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 332 |