Olivine
Physical Properties
| Color | yellow green |
| Form/Habit | massive |
| Lusture | vitreous |
| Streak | white |
| Hardness | 6.5-7 |
| Cleavage | poor 1 set (Absent) |
| Fracture | conchoidal |
| Specific Gravity | 3.27-4.37 (moderate) |
| Chemical Composition | (Mg,Fe)2SiO4 |
| Crystal System | Orthorhombic |
| Diagnostic Properties | Streak, Conchoidal fracture and hardness |