ORDINARY CHONDRITES:

The Most Common Type Of Meteorites. Divided In 3 Types:
H: High Iron Content, L: Low Iron Content, LL: Very Low Iron Content.
The Homogeneity Of The Crystallization Is Indicated By The Petrologic Grade, From Type 3 (Clear Isolated Chondrules) To Type 6 (Barely Distinguishable Chondrules).