Difference between Micrometeoroid and Micrometeorite

What is the difference between Micrometeoroid and Micrometeorite?

Micrometeoroid as a noun is , an extraterrestrial particle less than a millimeter in size while Micrometeorite as a noun is an extraterrestrial particle, less than a millimeter in size, that has survived entry into the atmosphere without melting

We hope you now know whether to use Micrometeoroid or Micrometeorite in your sentence.