description Jet Overview
Jet is a black gemstone consisting of lignite, a geological precursor of coal formed from fossilized wood, with the finest historic material coming from Jurassic deposits around Whitby in Yorkshire, England. It takes a high polish with a deep, velvety luster, feels warm to the touch, and acquires a static electric charge when rubbed. Carved into ornaments since prehistory, jet became emblematic of Victorian mourning jewelry after Queen Victoria wore Whitby jet following the death of Prince Albert in 1861.
help Jet FAQ
What is jet gemstone made from?
Jet is a type of lignite formed from fossilized wood, making it a geological precursor to coal. It is lightweight, opaque, and usually deep black.
Where does the finest historic jet come from?
The best-known historic material comes from Jurassic deposits around Whitby in Yorkshire, England. Whitby jet became especially important in Victorian jewelry.
Why does jet feel warm to the touch?
Jet has low thermal conductivity compared with many mineral gemstones, so it does not draw heat from the skin as quickly as metals or dense stone. It can also be polished to a deep, velvety luster.
How is jet used in jewelry?
Jet is carved into beads, pendants, brooches, and mourning jewelry. Its black color and ability to take a high polish made Whitby jet especially popular in the 19th century.
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