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පයිරයිට්

විකිපීඩියා වෙතින්
පයිරයිට්
Intergrowth of lustrous, cubic crystals of pyrite, with some surfaces showing characteristic striations, from Huanzala mine, Ancash, Peru. Specimen size: 7.0 × 5.0 × 2.5 cm
General
Categoryසල්ෆයිඩ් ඛණිජ
රසායනික සූත්‍රයFeS2
Strunz classification2.EB.05a
Dana classification2.12.1.1
Crystal symmetryPa3
Unit cella = 5.417 Å, Z = 4
Identification
අණුක ස්කන්ධය119.98 g/mol
පාට / පැහැයPale brass-yellow reflective; tarnishes darker and iridescent
Crystal habitCubic, faces may be striated, but also frequently octahedral and pyritohedral. Often inter-grown, massive, radiated, granular, globular, and stalactitic.
Crystal systemCubic
TwinningPenetration and contact twinning
CleavageIndistinct on {001}; partings on {011} and {111}
FractureVery uneven, sometimes conchoidal
Tenacityභංගුර
Mohs scale hardness6–6.5
LusterMetallic, glistening
StreakGreenish-black to brownish-black
DiaphaneityOpaque
Specific gravity4.95–5.10
ඝනත්‍වයy4.8–5 g/cm3
Fusibility2.5–3 to a magnetic globule
SolubilityInsoluble in water
Other characteristicsparamagnetic
References[1][2][3][4]

පයිරයිට් (ඉංග්‍රීසි:  iron pyrite, pyrite, fool's gold, /ˈprt/),[5] ඛණිජය, යනු යකඩ සල්ෆයිඩයකි. මෙහි රසායනික සූත්‍රය FeS2 (iron (II) disulfide) වේ. පයිරයිට් වඩාත්ම සුලබ සල්ෆයිඩ ඛණිජය වේ.[6]

Pyrite cubic crystals on marl from Navajún, La Rioja, Spain (size: 95 by 78 මිලිමීටර [3.7 by 3.1 in], 512 ග්‍රෑම් [18.1 oz]; main crystal: 31 මිලිමීටර [1.2 in] on edge)

ආශ්‍රිත

[සංස්කරණය]

මූලාශ්‍ර

[සංස්කරණය]
  1. ^ Hurlbut, Cornelius S.; Klein, Cornelis (1985). Manual of Mineralogy (20th ed.). New York, NY: John Wiley and Sons. pp. 285–286. ISBN 978-0-471-80580-9.
  2. ^ "Pyrite". Webmineral.com. සම්ප්‍රවේශය 2011-05-25.
  3. ^ "Pyrite". Mindat.org. සම්ප්‍රවේශය 2011-05-25.
  4. ^ Anthony, John W.; Bideaux, Richard A.; Bladh, Kenneth W.; Nichols, Monte C., eds. (1990). "Pyrite" (PDF). Handbook of Mineralogy. Vol. I (Elements, Sulfides, Sulfosalts). Chantilly, Virginia, US: Mineralogical Society of America. ISBN 978-0962209734.
  5. ^ "Pyrite | meaning in the Cambridge English Dictionary". dictionary.cambridge.org.
  6. ^ Vernon J. Hurst; Thomas J. Crawford (1970). Sulfide Deposits in the Coosa Valley Area, Georgia. Economic Development Administration, Technical Assistance Project, U. S. Department of Commerce. p. 137.

භාහිර සබැඳි

[සංස්කරණය]
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