Lucy Fielding's Birthday

Photographs courtesy of Mathew Peet.

Lucy Fielding, birthday
Lucy
Lucy Fielding, birthday
James, Ed, Tim
Lucy Fielding, birthday
Yin, Steve, Mathew
Lucy Fielding, birthday
Wilberth, Sanbao
Lucy Fielding, birthday

 Lucy Fielding, birthday
Lucy Fielding, birthday

 Lucy Fielding, birthday

Point group symmetry of epsomite crystal

Epsomite is a hydrated magnesium sulphate, MgSO4.7H2O. The equilibrium shape of the crystal is illustrated and its point group symmetry is 222, with three mutually perpendicular diads, all of which pass through the orthogonal edges of the crystal.

Movies

Images

epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy

The first sequence shows rotation about the vertical axis		 epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy
epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy

 epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy
epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy

 epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy
epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy

 epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy
epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy

 epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy
epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy

 epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy

This sequence shows rotation about an axis normal to the plane of the diagram, passing through the centre of the diagram
epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy

 epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy
epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy

 epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy
epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy

 epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy
epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy

 epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy
epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy

 epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy
epsomite, point group symmetry, 222, crystallography, Bhadeshia, metallurgy

The 222 point group symmetry of epsomite


Carbides in bearings Thermal stability Induction welding Bearings Bain
Duplex steel Ternary pearlite Thermal stability Cementite dissolution Epsomite
FSW tools Fragmentation Bearing steel HCP martensite Atomic displacements