R5: Extraterrestrial materials

[R5-11] Classification of subtype 3.0 chondrites

*Makoto Kimura¹, Michale K. Weisberg², Akira Yamaguchi¹ (1. National Institute of Polar Rsearch, 2. City University of New York)

Keywords:Chondrite, Classification

Type 3 chondrites are subdivided into 3.0 to 3.9. Subtype 3.0 chondrites nearly preserve all of their primitive features. Many criteria have been proposed to distinguish such primitive chondrites. Here we compiled mineral data and reconsider the classification criteria for subtype 3.0.