Name |
|
Milarite |
Chemistry |
|
K2Ca4Al2Be4[Si24O60]·H2O |
Hardness |
|
6 |
Lustre |
|
vitreous |
Colour |
|
colourless, white, greenish white, yellowish
white |
Streak |
|
white |
Density [g/cm3] |
|
2.5 |
Crystal habit |
|
hexagonal, crystals prismatic
with pinacoidal termination |
Cleavage, Fracture |
|
[0001], [1120] imperfect, fracture conchoidal |
other characteristics
and occurrences |
|
hydrothermal formation
in alpine veins |
|
|
|