Raw honey has not been pasteurized or even heated significantly because excessive heat can weaken or destroy natural enzymes and some of the benefits of honey. Honey should be only slightly warmed to re-liquefy for packaging.
Unfiltered honey naturally contains small particles like bits of wax, while leaving most all pollen grains in the liquid honey. Some honey packers ultra-filter honey, which extends shelf life before crystallization, but removes all pollen. Some course straining can be used to remove large particles, but not the extent that it removes nutrients.
Honey that is produced and consumed in the same geographical area and contains the same pollens as local flowers and plants.