Assertion: chrysoprase's color | /r/HasProperty | derived
Facets:
value: from the presence of lazurite
type: OTHER
value: mainly
type: DEGREE
Source sentences:
text: Chrysoprase is chalcedony (microcrystalline quartz) whose rich green color is derived from the presence of minute particles of a nickel containing mineral, willemseite.
text: The color of the quartz is thought to be derived from iron ions within the quartz crystal structure.
text: The blue color of lapis lazuli is mainly derived from the presence of lazurite, a blue silicate mineral of the sodalite group with a chemical composition of (Na,Ca) 8 (AlSiO 4 ) 6 (S,Cl,SO 4 ,OH) 2 .