Drilling down into a pyroxene grain on Jake Matijevic rock with ChemCam
![Drilling down into a pyroxene grain on Jake Matijevic rock with ChemCam](https://planetary.s3.amazonaws.com/web/assets/pictures/_1200x899_crop_center-center_82_line/20121011_chemcam_ratios_696087main_wiens4r-43_full.jpg 1200w, https://planetary.s3.amazonaws.com/web/assets/pictures/_768x575_crop_center-center_82_line/20121011_chemcam_ratios_696087main_wiens4r-43_full.jpg 768w, https://planetary.s3.amazonaws.com/web/assets/pictures/_576x431_crop_center-center_82_line/20121011_chemcam_ratios_696087main_wiens4r-43_full.jpg 576w)
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