Red Grapefruit, Avocado, and Fennel Salad

from Raw Food Real World by Matthew Kenney & Sarma Melngailis
p. 109

dressing:
3 large ruby red grapefruits or 5 oranges (cut the grapefruit for the salad, squeeze the extra juice into the dressing)
1/4 cup macadamia oil
1 TBL lime juice
coarse sea salt

salad:
2 ripe avocados, peeled, pitted, sliced
1 large fennel bulb, sliced thinly
1 small handful mint leaves, julienned
fresh ground pepper
1 tsp cracked coriander seed