blue topaz subgroup of topaz, 13 assertions
CapableOf 1
become available 0.16
HasA 1
pale to medium blue col… 0.59
HasProperty 4
rare 0.60
popular 0.57
inexpensive 0.25
the second most popular… 0.16
IsA 3
the birthstone 0.68
colorless topaz 0.46
the accepted anniversar… 0.45
ReceivesAction 4
produced 0.74
irradiated 0.74
used to commemorate 4th… 0.45
confused with aquamarine 0.37