Assertion: beryl's color | /r/HasProperty | due
Facets:
value: to chromium
type: CAUSE
value: to vanadium
type: OTHER
value: to iron
type: CAUSE
Source sentences:
text: Emerald is a deep green variety, the color is due to Chromium or Vanadium.
text: The data available indicates the color is due to the presence of trace amounts of manganese.
text: Some sources also include green in the aquamarine sector and then we find color is due to iron also.
text: Emerald is a deep green variety, the color is due to Chromium or Vanadium.
text: The green color in emerald is due to traces of chromium and sometimes vanadium in the beryl crystal lattice.
text: The color of a ruby is due to the element chromium.
text: Emerald is a deep green variety, the color is due to Chromium or Vanadium.
text: (The mineral's red color is due to the presence of Mn3+ ions.)