Quartz crystal, Europe, 1999
1999
Quartz Crystal used for Oscillator
2012
Piezo Quartz Crystal
Pair of Quartz Crystal with holder
Quartz Crystal for X-ray polychromator, England, 1980
1978-1980
Standard Piezo overtone quartz crystal
Quartz crystal, slice
Quartz crystal, containing 'ghost'
Quartz crystal, with possible GT-cut plate position indicated
'Twinned' quartz crystal
Quartz crystal, with X, Y and Z axes labelled
Quartz crystal, water-worn
