zircon

Definitions

  • WordNet 3.6
    • n zircon a common mineral occurring in small crystals; chief source of zirconium; used as a refractory when opaque and as a gem when transparent
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Webster's Revised Unabridged Dictionary
    • Zircon (Min) A mineral consisting predominantly of zirconium silicate (Zr2SiO4) occurring in tetragonal crystals, usually of a brown or gray color. It consists of silica and zirconia. A red variety, used as a gem, is called hyacinth. Colorless, pale-yellow or smoky-brown varieties from Ceylon are called jargon.
    • Zircon an imitation gemstone made of cubic zirconia.
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Century Dictionary and Cyclopedia
    • n zircon A mineral occurring in tetragonal crystals of adamantine luster and yellowish to brownish or reddish color: its hardness is somewhat greater than that of quartz. The reddish-orange variety is sometimes called hyacinth in jewelry. The colorless, yellowish, or smoky zircon of Ceylon is there called jargon. Zircon consists of the oxids of silicon and zirconium (SiO2ZrO2), and is usually regarded as a silicate of zirconium, though sometimes classed with the oxids of titanium (rutile) and tin (cassiterite), which have a similar form. See zirconium.
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Etymology

Webster's Revised Unabridged Dictionary
F., the same word as jargon,. See Jargon a variety of zircon

Usage

In literature:

Finely ground zircon is quickly rendered soluble if fused with a mixture of potassium borofluoride and potassium carbonate.
"Scientific American Supplement, No. 441, June 14, 1884." by Various
Most generally it is found to be the mineral zircon.
"The Birth-Time of the World and Other Scientific Essays" by J. (John) Joly
Sapphire, garnet and zircon are rare.
"Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3" by Various
The zirconium silicate, zircon, is a fairly common accessory constituent of granitic rocks and pegmatite veins.
"The Economic Aspect of Geology" by C. K. Leith
The zircon, for example, is strongly doubly refracting, but shows hardly any dichroism.
"A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public" by Frank Bertram Wade
Zircon, engrossed in a theoretical problem, scarcely noticed.
"The Electronic Mind Reader" by John Blaine
Zircon ran to pack a bag, and Tony went to get the film Rick had taken for Zircon to carry to Steve.
"The Wailing Octopus" by Harold Leland Goodwin
Zircon, Weiss, and Winston?
"The Scarlet Lake Mystery" by Harold Leland Goodwin
Dave Riddle will work with Honorario, Brad Connel with Ruiz, and Hobart Zircon with Rick and Scotty.
"The Flaming Mountain" by Harold Leland Goodwin
The Hindu boy pounded them in glee, then shook hands with Zircon.
"The Pirates of Shan" by Harold Leland Goodwin
He knew where he stood with the old gang, Hartson Brant, Hobart Zircon, Julius Weiss, and John Gordon.
"The Caves of Fear" by John Blaine
Other minerals, except apatite, zircon and magnetite, are typically absent.
"Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3" by Various
The accessory minerals of these rocks are principally oligoclase, muscovite, apatite and zircon.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2" by Various
The densest gem-stone is zircon, which may have S.G. as high as 4.7, whilst the lowest is opal with S.G. 2.2.
"Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5" by Various
Apatite, zircon and iron oxides, in small crystals, are always present.
"Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3" by Various
His attempts to decompose "alumine, silica, zircone and glucine" were still less fortunate.
"Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 10" by Various
The truly refined people are those who have got three garnets and one zircon.
"Dodo's Daughter" by E. F. Benson
The zircon has strong refractive power, and its lustre is almost adamantine, but it lacks the fire of the diamond.
"Encyclopaedia Britannica, 11th Edition, Volume 15, Slice 3" by Various
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In news:

The mineral zircon is processed to yield zirconium, which is used in products like ceramics, antiperspirants, paints and coatings.
Kenneth James's Zircon by Eijffinger wallpaper by Brewster Home Fashions, 800-366-1700.
The Cimara Zircon chairside zirconia re-pair system helps clinicians restore fractures in zirconium dioxide veneers and crowns in a few simple steps.
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In science:

They have supplanted lead zirconate (PZT) ceramics as the basis of state-of-the-art piezoelectric sensors and actuators that convert between mechanical and electrical forms of energy , and they show potential as ferroelectric nonvolatile memories .
The Persistence and Memory of Polar Nano-Regions in a Ferroelectric Relaxor Under an Electric Field
PZT: A particular piezo-electric material, lead zirconate titanate, but often referring to piezoelectric transducers in general.
Single barium ion spectroscopy: light shifts, hyperfine structure, and progress on an optical frequency standard and atomic parity violation
Fig. 14 The quasi-static field dependence of the strain S3, the electric displacement D3 and the strain S1 in a lead levels below the coercive field (left figures) and zirconate titanate ceramic as a function of electric field at field above the coercive fields (right figures) (Sherrit et al. 1997f).
Characterization of Piezoelectric Materials for Transducers
Berlincourt D, Krueger HHA (1959) Domain processes in lead zirconate titanate and barium titanate ceramics. J.
Characterization of Piezoelectric Materials for Transducers
Masys AJ, Ren W, Yang G, Mukherjee BK (2003) Piezoelectric strain in lead zirconate titanate ceramics as a function of electric field, frequency and dc bias., J.
Characterization of Piezoelectric Materials for Transducers
In particular, irradiations of Fe on Biotite (an iron-rich mica variety) and Zr on Zircon ( ZrSiO4 ), would be desirable to determine their possible utility.
Nuclear Tracks from Cold Dark Matter Interactions in Mineral Crystals: A Computational Study
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