Assertion: stone's color | /r/HasProperty | due
Facets:
value: to impurities
type: CAUSE
value: to the element chromium
type: CAUSE
value: to fe3
type: TEMPORAL
value: to the nature of light
type: CAUSE
Source sentences:
text: The color of any material is due to the nature of light itself.
text: Recent X-ray diffraction studies suggest that the color is due to thin microscopic fibers of possibly dumortierite within the quartz.
text: The color of a ruby is due to the element chromium.
text: The color in yellow chrysoberyl is due to Fe3+ impurities.
text: The colors are due to an almost unbelievable complexity of chemical composition, to which John Ruskin‘s quip (1890)