zircon


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zir·con

 (zûr′kŏn′)
n.
A brown to colorless mineral, ZrSiO4, which is heated, cut, and polished to form a brilliant blue-white gem.

[German Zirkon (originally in obsolete scientific German Zirkonerde, zirconium oxide, coined by German chemist Martin Heinrich Klaproth (1743-1817), who first isolated it from a jacinth), probably partly from Arabic zarqūn, minium, bright red (from Persian zargūn, gold-colored, from Middle Persian zargōn, golden : zarr, zar-, golden from Old Iranian *zarna-; see ghel- in Indo-European roots + gōn, color, from Old Iranian *gaona-; akin to Sanskrit guṇaḥ, string, thread, quality), and partly from European terms for "jacinth" such as French jargon (from Old French jargonce, ultimately from Latin hyacinthus; see hyacinth).]

zircon

(ˈzɜːkɒn)
n
(Minerals) a reddish-brown, grey, green, blue, or colourless hard mineral consisting of zirconium silicate in tetragonal crystalline form with hafnium and some rare earths as impurities. It occurs principally in igneous rocks and is an important source of zirconium, zirconia, and hafnia: it is used as a gemstone and a refractory. Formula: ZrSiO4
[C18: from German Zirkon, from French jargon, via Italian and Arabic, from Persian zargūn golden]

zir•con

(ˈzɜr kɒn)

n.
a mineral, zirconium silicate, ZrSiO4, occurring in small tetragonal crystals or grains of various colors, usu. opaque: used as a gem when transparent.
[1785–95; < German Zirkon]

zir·con

(zûr′kŏn′)
A brown, reddish to bluish, gray, green, or colorless mineral that is a silicate of zirconium and occurs in igneous, metamorphic, and sedimentary rocks, and especially in sand. The colorless varieties are valued as gems.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.zircon - a common mineral occurring in small crystals; chief source of zirconium; used as a refractory when opaque and as a gem when transparent
atomic number 40, zirconium, Zr - a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
hyacinth, jacinth - a red transparent variety of zircon used as a gemstone
jargoon, jargon - a colorless (or pale yellow or smoky) variety of zircon
Translations

zircon

[ˈzɜːkən] Ncircón m

zircon

nZirkon m

zircon

[ˈzɜːkən] nzircone m
References in periodicals archive ?
Their topics include local bulk composition effects of metamorphic mineral assemblages, diffusion: obstacles and opportunities in petrochronology, petrochronology by laser-ablation inductively coupled plasma mass spectrometry, secondary ionization mass spectrometry analysis in petrochronology, zircon: the metamorphic mineral, the petrochronology of zircon and baddeleyite in igneous rocks: reconstructing magmatic processes at high temporal resolution, garnet: a rock-forming mineral petrochronometer.
K-feldspar (microperthite, microcline), quartz, plagioclase (minor), biotite, hornblende, apatite, zircon and magnetite constitute the rock.
Executive Chairman Mr Mark Caruso stated "the solid performance in the first half of the year is even more pleasing given the results were delivered -without any garnet sales for the period and a reduction in zircon pricing during the period.
Iluka is a major producer of zircon and has a strong position in rutile.
Russia's hypersonic Zircon missile is expected to go into production in 2018, Tass news agency reported Tuesday, citing an unidentified source.
Zircon is composed of tetrahedral arrangement of carbon atoms with strong bonds in the crystal lattice.
Gem-quality zircon is typically transparent and cut into faceted gems.
1-billion-year-old zircon crystal containing a carbon-12-laden impurity.
It was a spate of ancient zircon crystals unearthed in Western Australia that prompted a team of US researchers to make new conclusions about Earth's history.
20 (Petra) -- An ancient zircon crystal unearthed in Western Australia may hold evidence that life appeared on the planet 4.
Another ceramic ideal for use in Equiax casting, >95% zircon is particularly suited to alloys containing high levels of cobalt.