Final answer:
The sedimentary rock composed of particles ranging in size from 0.0004 cm to 0.006 cm is siltstone.
Step-by-step explanation:
The sedimentary rock composed of particles ranging in size from 0.0004 cm to 0.006 cm is siltstone.
Siltstone is a fine-grained sedimentary rock that is composed of silt-sized particles. These particles are smaller than sand grains but larger than clay particles. Siltstone is often smooth to the touch and can be easily split into thin layers or sheets.
Unlike conglomerate, dolostone, and shale, siltstone is specifically described as having particles within the given size range.