زرقون

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زرقون
Aegirine zircon orthoclase MNHN Minéralogie.jpg
Aegirine, zircon and orthoclase from Mt Malosa, Malawi. Gallery of Mineralogy and Geology of the French National Museum of Natural History in Paris.
General
CategoryNesosilicates
Formula
(repeating unit)
zirconium silicate (ZrSiO4)
Strunz classification9.AD.30
Crystal systemTetragonal
Crystal classDitetragonal dipyramidal (4/mmm)
H-M symbol: (4/m 2/m 2/m)
Space groupI41/amd (No. 141)
Unit cella = 6.607(1), c = 5.982(1) [Å]; Z = 4
Identification
ColorReddish brown, yellow, green, blue, gray, colorless; in thin section, colorless to pale brown
Crystal habittabular to prismatic crystals, irregular grains, massive
TwinningOn {101}. Crystals shocked by meteorite impact show polysynthetic twins on {112}
Cleavage{110} and {111}
FractureConchoidal to uneven
TenacityBrittle
Mohs scale hardness7.5
LusterVitreous to adamantine; greasy when metamict.
StreakWhite
DiaphaneityTransparent to opaque
Specific gravity4.6–4.7
Optical propertiesUniaxial (+)
Refractive indexnω = 1.925–1.961
nε = 1.980–2.015, 1.75 when metamict
Birefringenceδ = 0.047–0.055
PleochroismWeak
Fusibilityclose to 2,550 °C depend on Hf,Th,U,H,etc... concentrations.
SolubilityInsoluble
Other characteristicsفلورسینس and Radioactive.svg اشعاعی تنزل,
May form pleochroic halos,
Relief: high
References[1][2][3][4][5]

زرقون ايک معدني شے اور اک قسم کا پتّھڑ بھی ہے۔ زرقون دھاتی زرقونیم کا ایک ذریعہ ہے۔

تصاویر[ترمیم]

  1. Anthony، John W.؛ Bideaux، Richard A.؛ Bladh، Kenneth W.؛ Nichols، Monte C.، ویکی نویس (1995). "Zircon" (PDF). Handbook of Mineralogy. II (Silica, Silicates). Chantilly, VA, US: Mineralogical Society of America. ISBN 978-0962209710. 
  2. "Zircon: Mineral information, data and localities". Mindat.org. اخذ شدہ بتاریخ October 19, 2021. 
  3. "Zircon Mineral Data". Webmineral. اخذ شدہ بتاریخ October 19, 2021. 
  4. Hurlbut، Cornelius S.؛ Klein، Cornelis (1985). Manual of Mineralogy (ایڈیشن 20th). ISBN 0-471-80580-7. 
  5. Erickson، Timmons M.؛ Cavosie، Aaron J.؛ Moser، Desmond E.؛ وغیرہ (2013). Abstract. "Correlating planar microstructures in shocked zircon from the Vredefort Dome at multiple scales: Crystallographic modeling, external and internal imaging, and EBSD structural analysis" (PDF). American Mineralogist. Volume 98: 53–65. doi:10.2138/am.2013.4165.