Assertion: alexandrite | /r/AtLocation | a glass plate
Facets:
value: with illuminating them
type: OTHER
Source sentences:
text: Moreover, if the alexandrites were placed on a glass plate, with several light sources illuminating them from different directions through the table and crown facets, or if the alexandrites were observed in diffused daylight, the differences in visual impression for even the step-cut samples became almost indistinguishable.