Iceland spar

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    1. <skos:Concept rdf:about="http://vocab.getty.edu/aat/300380526">

      1. <skos:prefLabel xml:lang="en">Iceland spar</skos:prefLabel>

      2. <skos:altLabel xml:lang="en">spar, Iceland</skos:altLabel>

      3. <skos:altLabel xml:lang="en">Icelandic spar</skos:altLabel>

      4. <skos:broader rdf:resource="http://museovirtualfelixcanada.digibis.com//concepts/49331" />

      5. <skos:note xml:lang="en">Transparent, naturally-occurring calcite crystal used in demonstrating the polarization of light. An oblong stone made of Iceland spar found in the wreck of a 16th-century English warship in 2013 has led archaeologists to speculate that the crystal is one and the same as the sunstone, a near-mythical navigational aid said to have been used by Viking mariners.</skos:note>

      6. <skos:notation>300380526</skos:notation>

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