NASA NTRS · 19740014955
Rock sampling
Abstract
An apparatus for sampling rock and other brittle materials and for controlling resultant particle sizes is described. The device includes grinding means for cutting grooves in the rock surface and to provide a grouping of thin, shallow, parallel ridges and cutter means to reduce these ridges to a powder specimen. Collection means is provided for the powder. The invention relates to rock grinding and particularly to the sampling of rock specimens with good size control.
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Blum, P.. 1971-09-20. Rock sampling. https://ntrs.nasa.gov/citations/19740014955
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