opal primary subject, 289 assertions
Subgroups 8
precious opal 10
black opal 8
fire opal 7
boulder opal 6
common opal 5
white opal 3
australian opal 2
synthetic opal 1
Aspects 4
color 31
colour 10
water content 2
body color 1
AtLocation 10
australia 0.69
mexico 0.64
cretaceous rock 0.55
south australia 0.53
coober pedy 0.50
ethiopia 0.48
lightning ridge 0.41
indonesia 0.41
white 0.35
japan 0.25
CapableOf 82
reflect light 0.58
bring good luck 0.57
range in color 0.53
mean to see a change of… 0.50
form in the sandstone 0.50
fall in flashes of ligh… 0.49
display red 0.44
strengthen the memory 0.43
give the gift of prophe… 0.42
crack 0.42
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HasA 12
water 0.72
blue 0.57
mystical significance 0.55
green 0.51
the power 0.46
rainbow-like iridescence 0.42
long history 0.37
orange 0.34
satisfying amount of cr… 0.23
the colors of other gems 0.20
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HasPrerequisite 1
special care 0.37
HasProperty 55
soft 0.72
unique 0.71
sensitive 0.67
white 0.66
translucent 0.57
rare 0.56
black 0.54
hard 0.54
delicate 0.54
solid 0.53
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IsA 16
beautiful gems 0.52
soft stones 0.41
softer stone 0.41
delicate stones 0.40
mineral 0.39
protective stone 0.37
gem 0.35
lucky stone 0.34
stones of happy dreams 0.32
unlucky stone 0.29
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MadeOf 2
water 0.62
sand 0.34
ReceivesAction 105
formed 0.79
cut 0.74
composed of silica 0.64
mined 0.63
mined in australia 0.62
cut as cabochon 0.57
associated with love 0.57
set in ring 0.55
found over the world 0.55
considered lucky 0.52
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SymbolOf 6
hope 0.46
purity 0.43
love 0.27
faithfulness 0.25
truth 0.20
confidence 0.16