Jet (coal)
Esquema
Jerarquía
<materials by composition> > organic material > bituminous material > natural bituminous material > pyrobitumen > coal > lignite
Descripción
A dense, black, semiprecious form of lignite that takes a brilliant polish and is used ornamentally, particularly in Victorian mourning jewelry.
URI original del concepto
Otros términos
- git [nl]
- azabache [es]