Galena
| Colour | Gray |
|---|---|
| Mohs hardness | 2.5–2.75 |
| Lustre | Metallic on cleavage planes |
| Streak | Lead gray |
| Crystal system | Cubic |
| Transparency | Opaque |
| Cleavage | Cubic perfect on {001}, parting on {111} |
| Fracture | Subconchoidal |
| Chemical formula | PbS |
| Specific gravity | 7.2–7.6 |
What is Galena?
Galena, also called lead glance, is the natural mineral form of lead(II) sulfide (PbS). It is the most important ore of lead and an important source of silver.
How to identify Galena
- Lustre: Metallic on cleavage planes.
- Hardness: Mohs 2.5–2.75 — soft; a knife will scratch it.
- Streak: Lead gray.
- Habit: Cubic crystal system.
Galena in different forms
Stones often confused with Galena
Frequently asked questions
How hard is Galena?
Galena is Mohs 2.5–2.75 on the hardness scale.
What colour is Galena?
Galena is typically gray (Lead gray and silvery).