NWA 4540 CO3.5

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.

 

About the Author

John Kashuba
John is a natural history enthusiast living in Oregon.
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