Jet is a type of lignite, the lowest rank of coal, and is a gemstone. Unlike many gemstones, jet is not a mineral, but is rather a mineraloid. It is derived...
27 KB (2,959 words) - 10:53, 11 August 2024
nozzle or aperture Jet (gemstone), a black or brown semi-precious mineraloid Jet (mathematics), an operation on a differentiable function Jet (particle physics)...
8 KB (1,024 words) - 07:21, 29 July 2024
(such as amber, jet, and pearl) may also be used for jewelry and are therefore often considered to be gemstones as well. Most gemstones are hard, but some...
60 KB (6,790 words) - 20:23, 1 August 2024
This is a list of gemstones, organized by species and types. There are over 300 types of minerals that have been used as gemstones. Such as: Actinolite...
13 KB (866 words) - 05:32, 11 March 2024
world. Amber Amethyst Mountain Araucarioxylon arizonicum Fossil wood Jet (gemstone) Palmoxylon (petrified palmwood) Submerged forest Wood opal Mustoe,...
30 KB (3,168 words) - 04:15, 26 July 2024
sea level rise since the last glacial period. Amber Dendrochronology Jet (gemstone) Paleobotany Xyloid lignite Ed Strauss (2001). "Petrified Wood from...
6 KB (494 words) - 11:24, 7 August 2024
Garnet (redirect from Garnet gemstone)
group of silicate minerals that have been used since the Bronze Age as gemstones and abrasives. All species of garnets possess similar physical properties...
53 KB (5,147 words) - 16:58, 8 August 2024
Apatite is rear and precious gemstone found in Chumar Bakhoor along with Aquamarine and Fluorite summayar nagar. Jet (Gemstone) Jet deposits are found in various...
11 KB (1,142 words) - 18:01, 6 July 2024
of Isaac. The façade "da Acibecharía" (Galician name derived from the jet gemstone) is in the Praza da Inmaculada or Acibecharía, draining the last section...
49 KB (5,373 words) - 19:25, 15 June 2024
Oltu stone (category Gemstones)
kind of jet found in the region around Oltu town within Erzurum Province, eastern Turkey. The organic substance is used as semi-precious gemstone in manufacturing...
3 KB (310 words) - 16:05, 28 May 2024