Physical Properties |
|
| Chemical formula | Cu3(CO3)2(OH)2 |
| Class | Carbonate |
| Crystal system | Monoclinic |
| Habit | Massive Earthy Tabular (rare) Prismatic (rare) May form as a crust on other copper minerals |
| Color | Blue |
| Hardness | 3.5 to 4 |
| Specific gravity | 3.77 |
| Cleavage | Brittle, perfect {011}, good {100} |
| Fracture | Conchoidal |
| Luster | Dull Earthy Vitreous |
| Transparency | Transparent to translucent |
| Streak | Blue |
Optical Properties |
|
| PPL | Blue Pleochroic |
| XPL | 5th order colors |
| δ | 0.106 |
| after Perkins, 389 |
Azurite in Hand Sample
Azurite (blue) and malachite (green)
Another, very similar sample of azurite and malachite
Azurite in Thin Section
Stay tuned!