Assertion: augite | /r/HasProperty | green
Facets:
value: in the center
type: LOCATION
Source sentences:
text: Very frequently they show layers of different composition, indicated by variations in color or other optical properties; thus augite may be green in the center surrounded by various shades of brown; or they may be pale green centrally and darker green with strong pleochroism (aegirine) at the periphery.