Name |
|
Celestine
(Celestite) |
Chemistry |
|
Sr[SO4] |
Hardness |
|
3 - 3.5 |
Lustre |
|
vitreous |
Colour |
|
colourless, white, yellowish, also blue |
Streak |
|
white |
Density [g/cm3] |
|
3.9 - 4.0 |
Crystal habit |
|
orthorhombic, crystals
tabular, and prismatic |
Cleavage, Fracture |
|
[001] perfect, [210] distinct, fracture conchoidal |
other characteristics
and occurrences |
|
grained, spathic, botryoidal,
prismatic, fibrous |
|
|
|