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Ice: H2O
Comments: Classic snowflake (stellar dendrite ice crystal) formed from vapor-rich air between -10 to -22 deg C. Low Temperature Scanning Electron Microscope (LT-SEM) image with inset light microscope image. Location: Unknown. Scale: Picture size 0.25 mm. © Eric Erbe / Beltsville Agricultural Research Center
Comments: Rimed ice crystal. Composite column and plate crystal covered with tubercle deposits from contact with liquid water (supercooled fog). Low Temperature Scanning Electron Microscope (LT-SEM) image. Location: Unknown. Scale: Picture size 1 mm. © Eric Erbe / Beltsville Agricultural Research Center
Comments: Hexagonal ice plate formed from vapor deposition in air at 0 to -3 or -10 to -35 deg. C. Low Temperature Scanning Electron Microscope (LT-SEM) image with inset light microscope image. Location: Unknown. Scale: Picture size 0.6 mm. © Eric Erbe / Beltsville Agricultural Research Center
Comments: Acicular ice crystals formed from vapor deposition in air at -3 to -10 deg. C. Low Temperature Scanning Electron Microscope (LT-SEM) image with inset light microscope image. Location: Unknown. Scale: Picture size 2 mm. © Eric Erbe / Beltsville Agricultural Research Center