| Mineral | OLIVENITE |
| Chemistry | Cu 2 [OH|AsO 4 ] |
| Class | Phosphates |
| Uses | As mineral specimens and minor ore of copper. |
| Color | Olive Green to Yellow or brown . |
| Luster | VitreousGreasy |
| CrystalSystem | Monoclinic |
| CrystalHabits | include crystals that are diamond-shaped, often acicular, prisms that are terminated by a dome with triangular faces.Can form feniform masses similar to wavellite s typical habit.Also as tiny crystalline druzes, fiberous masses, nodules and crusts. |
| Fracture | poor in two directions, but rarely noticed. |
| Hardness | 3 |
| Streak | Yellowish green |
| Characteristics | Soluable in hydrochloric acid. |
| Indicators | color, habits, soluability in hydrochloric acid, associations, locallities and density. |
| DensityNote | above average to heavy for translucent minerals |
| IMAStatus | Approved |
| Discovered | 1820 |
| CellParameters | a = 8.58b = 8.2c = 5.92 β=90.88° |
| Ratio | a:b:c = 1.046 : 1 : 0.722 |
| OpticalType | Biaxial (+) |
| RI | n α =1.772 n β =1.785 - 1.810 n γ |
| Birefringence | δ=0.091 |
| SurfaceRelief | Very High |
| TypeLocality | Carharrack Mine Consolidated Mines Gwennap - St Day Area Camborne - Redruth - St Day District Cornwall England U K |
| Strunz | 7/B.06-20 7 : PhosphatesArsenatesVanadates B : Waterfree phosphates with unfamiliar anions FClOOH. cations of very small size: LiBe 06 : Adamite groupLibethenite - Paradamite |
