| Mineral | Holfertite |
|---|---|
| Formula | CaxU6+2-xTi(O8-xOH4x) ยท 3H2O |
| Crystal Form | Trigonal/Pyramidal [3] |
| Cleavage | Perfect on (110) |
| Color | Canary yellow to orange yellow |
| Density | 4.2 – 4.3 g/cm3 |
| Diaphaneity | Transparent, Translucent |
| Fracture | Irregular/Uneven, Conchoidal |
| Hardness | 4.0 |
| Lustre | Vitreous |
| Streak | Pale yellow |
| Type Loc. | Holfertite pit, Starvation Cyn, Thomas Range, Juab Co., UT, USA |
| Strunz Class | 4.GB.70 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 474 |