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Iceland Spar used for Sterile Lenses
MANUFACTURING AND DISPENSING EQUIPMENT
raw material
Europe: Iceland
Mid 20th c.
calcite
overall: 13 mm x 60 mm x 40 mm

Sample of Iceland spar (calcite or crystallized calcium carbonate), shaped into a straight-edge parallelogram to form a display specimen.


2021.439

Gift of Mr Colin Butterworth, 2021



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