Assertion: chalcedony's color | /r/HasProperty | known for diverse agates
Facets:
Source sentences:
text: consist largely of chalcedony (see CHALCEDONY entry) that may be virtually a single color (commonly bluish) or just about any of the combinations of colors and patterns known for diverse agates (see AGATE entry), or a combination of those alternatives; however, the interiors of some thunder eggs contain jasper, opal, and/or quartz etc. either in lieu of or along with the chalcedony.