පයිරයිට්
(Pyrite වෙතින් යළි-යොමු කරන ලදි)
පයිරයිට් (ඉංග්රීසි: iron pyrite, pyrite, fool's gold, /ˈpaɪraɪt/),[5] ඛණිජය, යනු යකඩ සල්ෆයිඩයකි. මෙහි රසායනික සූත්රය FeS2 (iron (II) disulfide) වේ. පයිරයිට් වඩාත්ම සුලබ සල්ෆයිඩ ඛණිජය වේ.[6]
පයිරයිට් | |
---|---|
General | |
Category | සල්ෆයිඩ් ඛණිජ |
රසායනික සූත්රය | FeS2 |
Strunz classification | 2.EB.05a |
Dana classification | 2.12.1.1 |
Crystal symmetry | Pa3 |
Unit cell | a = 5.417 Å, Z = 4 |
Identification | |
අණුක ස්කන්ධය | 119.98 g/mol |
පාට / පැහැය | Pale brass-yellow reflective; tarnishes darker and iridescent |
Crystal habit | Cubic, faces may be striated, but also frequently octahedral and pyritohedral. Often inter-grown, massive, radiated, granular, globular, and stalactitic. |
Crystal system | Cubic |
Twinning | Penetration and contact twinning |
Cleavage | Indistinct on {001}; partings on {011} and {111} |
Fracture | Very uneven, sometimes conchoidal |
Tenacity | භංගුර |
Mohs scale hardness | 6–6.5 |
Luster | Metallic, glistening |
Streak | Greenish-black to brownish-black |
Diaphaneity | Opaque |
Specific gravity | 4.95–5.10 |
ඝනත්වයy | 4.8–5 g/cm3 |
Fusibility | 2.5–3 to a magnetic globule |
Solubility | Insoluble in water |
Other characteristics | paramagnetic |
References | [1][2][3][4] |
ආශ්රිත
සංස්කරණයමූලාශ්ර
සංස්කරණය- ^ 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.
- ^ "Pyrite". Webmineral.com. සම්ප්රවේශය 2011-05-25.
- ^ "Pyrite". Mindat.org. සම්ප්රවේශය 2011-05-25.
- ^ 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.
- ^ "Pyrite | meaning in the Cambridge English Dictionary". dictionary.cambridge.org.
- ^ 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
සංස්කරණයපයිරයිට් හා සබැඳි මාධ්ය විකිමාධ්ය කොමන්ස් හි ඇත.
- Educational article about the famous pyrite crystals from the Navajun Mine
- How Minerals Form and Change "Pyrite oxidation under room conditions".
- Poliakoff, Martyn (2009). "Fool's Gold". The Periodic Table of Videos. University of Nottingham.