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We report nondestructive three-dimensional imaging and analysis techniques for material returned by the Stardust cometary collector. Our technique utilizes three-dimensional laser scanning confocal microscopy (3D LSCM) to image whole Stardust tracks, in situ, with attainable resolutions <90 nm/pixel edge. LSCM images illustrate track morphology and fragmentation history; image segmentation techniques provide quantifi able volumetric and dynamic measurements. We present a method for multipartdoi:10.1130/ges00557.1 fatcat:cbixwyhfkvfylmgaxj2ntx76te