Electron microscope studies were made of surfaces of potassium chloride crystals containing excess potassium. The crystals were cleaved in a vacuum and the surfaces replicated in the same vacuum. Large potassium colloids were observed with distinctive shapes and orientations determined by the host lattice.
No takes yet. Share an insight, caveat, or question.
Simon et al. (1960) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: