Butterflies are fluttering in a grass field.
This is a non-coated calcium sulfate, observed using a Variable Pressure SEM. In general, calcium sulfate is well known as a plaster and it is used to create chalk. Chalk also comes in a wide array of colors, as do butterflies. You can imagine these butterflies are lending their beautiful colors to the chalk.
(Field 1: Non-biology)
At the 16th International Microscopy Congress (IMC16),Micrograph Competition (2006).
Specimen: Chalk (Calcium Sulfate)
Instrument: Scanning Electron Microscope S-3400N
Accelerating voltage: 5 kV
Vacuum: 50 Pa
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*This work was presented at the 16th International Microscopy Congress (IMC16), Micrograph Competition.
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