Assertion: talc's property | /r/HasProperty | difficult to measure
Facets:
Source sentences:
text: Small particles go unresolved; those marginally resolved may posess optical properties different from those properties cited in the literature; most optical properties, e.g. indices of refraction are difficult to measure on small particles.
text: Small particles go unresolved; those marginally resolved may posess optical properties different from those properties cited in the literature; most optical properties, e.g. indices of refraction are difficult to measure on small particles.