bn:00856693n
Noun Named Entity
Categories: Individual opals, Mineralogy stubs
EN
Halley's Comet Opal
EN
The Halley's Comet Opal is the largest uncut black opal in the world, according to the Guinness Book of World Records. Wikipedia
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EN
The Halley's Comet Opal is the largest uncut black opal in the world, according to the Guinness Book of World Records. Wikipedia
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