Assertion: alexandrite's color change | /r/AtLocation | ordinary chrysoberyl
Facets:
value: so sometimes
type: TEMPORAL
Source sentences:
text: Of course Mother Nature does not always do things in a precise scientific manner and so sometimes a slight color change may be observed in an ordinary chrysoberyl, leading it to be incorrectly classified as alexandrite; however, examination will show that a chrysoberyl will not florescence under a UV light, whereas alexandrite will do so.