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 |
|
|
|