colour aspect of opal, 10 assertions
CapableOf 1
become darker 0.16
HasProperty 5
yellow 0.59
pink 0.38
orange 0.29
visible 0.26
bright 0.16
ReceivesAction 4
seen in opal 0.62
caused by the diffracti… 0.25
shown in photo 0.16
shown in video 0.16