GENERAL DESCRIPTION
Jet is a dense, black, semi precious type of lignite that has a brilliant polish and is often used ornamentally. Considered to be a minor gemstone but not a true mineral, jet is a mineraloid. With an organic origin, jet derives from the extreme pressure decomposition of wood from millions of years ago. Found in two forms, hard jet is created by carbon compression and salt water, whereas soft jet is formed by carbon compression and fresh water. Though jet is easy to carve, it is difficult to create fine details without breaking. The similar appearance of anthracite (black coal) and ebonite (hardened rubber) make these minerals difficult to distinguish from jet and are often used as a popular choice to for jet imitation.
Adapted from
- Getty Vocabulary, AAT (jet (coal): AAT: 300045514)
- "Jet (lignite)," Wikipedia, accessed May 26, 2015, http://en.wikipedia.org/wiki/Jet_(lignite).
NOTES
ASSOCIATED CONTENT CHUNKS
AUDIO ASSETS
VIDEO ASSETS
IMAGE ASSETS
267926658: UMO. [Caption] Jet. Source: Geni (Own work), Wikimedia Commons, accessed August 3, 2016, https://upload.wikimedia.org/wikipedia/commons/2/27/Sample_of_jet_2013.JPG.
WEB RESOURCES
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FUN FACTS
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RULES
apply to OBJECTS where medium contains lignite
apply to content where content contains lignite
Category
rules_operator
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General Description
Jet is a dense, black, semi precious type of lignite that has a brilliant polish and is often used ornamentally. Considered to be a minor gemstone but not a true mineral, jet is a mineraloid. With an organic origin, jet derives from the extreme pressure decomposition of wood from millions of years ago. Found in two forms, hard jet is created by carbon compression and salt water, whereas soft jet is formed by carbon compression and fresh water. Though jet is easy to carve, it is difficult to create fine details without breaking. The similar appearance of anthracite (black coal) and ebonite (hardened rubber) make these minerals difficult to distinguish from jet and are often used as a popular choice to for jet imitation.
Adapted from
- Getty Vocabulary, AAT (jet (coal): AAT: 300045514)
- "Jet (lignite)," Wikipedia, accessed May 26, 2015, http://en.wikipedia.org/wiki/Jet_(lignite).
Fun Facts
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Apply To
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content
Contains
lignite
source file
materials_and_techniques-0007.xml.nores