Ice needle

{
  "id": "MLC-T-MET-006426",
  "term": "Ice needle",
  "field": "Meteorology and atmospheric science",
  "definition": "A thin, columnar type of ice crystal that forms in very cold, stable air masses, sometimes appearing to fall from a clear sky. These crystals are so small and light they can remain suspended in the air, creating the optical phenomenon known as diamond dust. They are hexagonal in cross-section and grow much longer than they are wide, with lengths reaching several millimeters.",
  "url": "https://mlchart.com/terminology/meteorology/ice-needle/"
}