CO3s, carbonaceous chondrites of the Ornans type, contain the smallest chondrules of any of the major chondrite types. Still, chondrule sizes vary among CO3s. And within this CO3 there is a variety of chondrule sizes and a great variety of chondrule types and other matter. It is good to be observant when scanning a thin section of this material at lower magnifications. There are a lot of details that reward viewing at higher powers. Here are some 3 mm wide views, each followed by a higher magnification shot of a field within it. All of these photos were taken from a single thin section.
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