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PREFERRED TERM
obsidian  
TYPE
  • http://purl.org/net/provenance/ns#DataItem

DEFINITION
  • Obsidian is the result of volcanic lava coming in contact with water. Often the lava pours into a lake or ocean and is cooled quickly. This process produces a glassy texture in the resulting rock. Iron and magnesium give the obsidian a dark green to black color. Obsidian has been used by ancient people as a cutting tool, for weapons, and for ceremonial purposes and is sometimes found by archaeologists in excavations. - http://www.galleries.com/Obsidian
DESCRIPTION
  • Obsidian is the result of volcanic lava coming in contact with water. Often the lava pours into a lake or ocean and is cooled quickly. This process produces a glassy texture in the resulting rock. Iron and magnesium give the obsidian a dark green to black color. Obsidian has been used by ancient people as a cutting tool, for weapons, and for ceremonial purposes and is sometimes found by archaeologists in excavations. - http://www.galleries.com/Obsidian
IDENTIFIER
  • obsidian
TITLE
  • obsidian
URI
http://inspire.ec.europa.eu/codelist/CommodityCodeValue/obsidian
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EQUIVALENT CONCEPTS
Commodity Code