| Name |
|
Glauberite |
| Chemistry |
|
CaNa2[SO4]2 |
| Hardness |
|
2.5 - 3 |
| Lustre |
|
vitreous |
| Colour |
|
white, yellow, grey or colourless |
| Streak |
|
white |
| Density [g/cm3] |
|
2.7 - 2.8 |
| Crystal habit |
|
orthorhombic, often twins
and trillings (120°) "triple siamnese twin", pseudohexagonal |
| Cleavage, Fracture |
|
[001] perfect, fracture conchoidal |
| other characteristics
and occurrences |
|
in dry salt lake beds in
aride climate |
 |
|
|