Lead Vanadium Chloride
Pb5(VO4)3Cl
|
Chemical name
Lead Vanadium Chloride |
|
Mineral name
Vanadinite |
|
Chemical formula
Pb5(VO4)3Cl |
|
Melting point [°C]
3470 |
|
Crystal system
hexagonal |
|
Crystal Class
hexagonal-dipyramidal (6/m) |
|
Space Group
P6_3/m |
|
Unit cell
a [Å]:10.32 b [Å]:10.32 c [Å]:7.34 |
|
Molecular weight [g/mol]
1416,31 |
|
Formula units
Z=2 |
|
Frequent crystal surfaces
{0001}, {10-10}, {10-11}, {21-31} |
|
Mohs hardness
3 - 4 |
|
Density [g/cm3]
6.8 - 7.1 |
|
Cleavage
none |
|
Fracture / Tenacity
uneven, conchoidal |
|
Color
yellow, orange, brown, sometimes red |
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Streak
white to bright yellowish-brown |
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Transparency
opaque to transparent or translucent |
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Luster
resinous to adamantine |
|
Optical character
uniaxial (-) |
|
Refractive Index
nω=2.416; nε=2.350 |
|
Birefringence δ
0.066 |
