| Name |
|
Erythrite
(Cobalt Bloom) |
| Chemistry |
|
Co3[AsO4]2·8H2O |
| Hardness |
|
2 |
| Lustre |
|
vitreous, pearly |
| Colour |
|
colourless, violet red, light pink, purple
red |
| Streak |
|
pinkish red |
| Density [g/cm3] |
|
3.0 |
| Crystal habit |
|
monoclinic, crystals small,
acicular |
| Cleavage, Fracture |
|
[010] perfect, fracture uneven |
| other characteristics
and occurrences |
|
alteration product of cobalt
minerals |
 |
|
|