Jet
This page kindly sponsored by Sarah Caldwell Steele
About Jet
Name:
From https://en.wikipedia.org/wiki/Jet_(gemstone) :
"The English noun jet derives from the French word for the same material, jaiet (modern French jais), ultimately referring to the ancient town of Gagae."
"The English noun jet derives from the French word for the same material, jaiet (modern French jais), ultimately referring to the ancient town of Gagae."
A hard gem-quality hydrocarbon, previously described as a hard lignite but this was disproved in the 1990s.
The name "Jet" is often (mis-)applied to material with similar appearance and properties worldwide that may have been formed through different processe, but true Jet is a fossilised driftwood that has been impregnated with hydrocarbons from algal and bacterial blooms in anoxic conditions.
Visit gemdat.org for gemological information about Jet.
The name "Jet" is often (mis-)applied to material with similar appearance and properties worldwide that may have been formed through different processe, but true Jet is a fossilised driftwood that has been impregnated with hydrocarbons from algal and bacterial blooms in anoxic conditions.
Visit gemdat.org for gemological information about Jet.Unique Identifiers
Mindat ID:
9355
Long-form identifier:
mindat:1:1:9355:8
Similar Names
| Jade | A rock subtype |
Pronunciation of Jet
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Synonyms of Jet
Other Language Names for Jet
Varieties of Jet
| Whitby Jet | Whitby Jet, or the classical English gemstone famed from Victorian-era mourning jewellery, has been misclassified for many years as a type of coal (often classified as a lignite), but this is not exactly the case. Whitby Jet is follised (or 'jetonised') ... |
Common Associates
Associations Based on Photo Data:
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Jet
mindat.org URL:
https://www.mindat.org/min-9355.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
Mineral Dealers:
References for Jet
Localities for Jet
Showing 54 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Austria | |
| B. Kutil |
| Franz Bernhard collection |
| Niedermayr (2009) |
| W.Freh |
| Exel (1993) |
Cambodia | |
| United Nations (1993) |
| United Nations (1993) |
| United Nations (1993) | |
| United Nations (1993) |
Canada | |
| Kunz (1890) |
France | |
| - (n.d.) |
| - (n.d.) |
| Collection Alex Trencart |
| Berbain et al. (2005) |
Italy | |
| Pigliacelli (1843) +1 other reference |
| Alfonso Frías Forcada Collection |
| Stöhr (1870) |
Luxembourg | |
| Werner (1983) |
Portugal | |
| Nunes (n.d.) |
| António Manuel Ináçio Martins. | |
| |
| Tiago Guia visit 2021 |
| Rui Nunes 2011 | |
| Nunes (n.d.) | |
| [Hard jet] Pedro Sequeira's collection |
| Several collecting visits by Rui Nunes (-2026) |
| Nunes (n.d.) |
Spain | |
| Calvo Rebollar (2025) |
| W. Schumann | |
| Suárez-Ruiz et al. (2006) |
| www.lavozdeasturias.es (2017) | |
| Calvo Rebollar (2025) | |
Turkey | |
| Erik Vercammen collection |
UK | |
| - (n.d.) |
| Erik vercammen finds and collection |
| Kunz (1890) +2 other references | |
USA | |
| - (2005) |
| Kunz (1890) |
| Kunz (1890) | |
| - (2005) |
| Ransom (1974) |
| - (2005) |
| U.S. Geological Survey staff (1965) |
| U.S. Geological Survey staff (1965) |
| U.S. Geological Survey staff (1965) |
| - (2005) |
| Bullock (1981) |
| - (2005) |
| - (2005) |
| - (2005) |
| - (2005) |
| Bullock (1981) |
| - (2005) |
| - (2005) |
Couto Mineiro do Lena, Porto de Mós, Leiria, Portugal