Abstract
K-lingunite is a high-pressure modification of K-feldspar that possesses the tetragonal hollandite structure. Variations of the Raman spectra of K-lingunite were studied up to ~31.5 GPa at room temperature, and in the range 79–823 K at atmospheric pressure. The Raman frequencies of all bands were observed to increase with increasing pressure, and decrease with increasing temperature for K-lingunite. This behavior is in line with those observed for most of other materials. New sharp Raman bands appear at pressures greater than 13–15 GPa, suggesting a phase transition in K-lingunite with increasing pressure. The transition is reversible when pressure was released. The appearance of these new Raman bands may correspond to the phase transition revealed earlier at around 20 GPa by X-ray diffraction studies. Instead of transforming back to its stable minerals, such as orthoclase, microcline or sanidine, K-lingunite became amorphous in the temperature range 803–823 K at atmospheric pressure.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Akaogi M, Kamii N, Kishi A, Kojitani H (2004) Calorimetric study on high-pressure transitions in KAlSi3O8. Phys Chem Miner 31:85–91. doi:10.1007/s00269-003-0372-9
Ferroir T, Onozawa T, Yagi T, Merkel S, Miyajima N, Nishiyama N et al (2006) Equation of state and phase transition in K-hollandite at high pressure. Am Mineral 91:327–332. doi:10.2138/am.2006.1879
Gillet P, Chen M, Dubrovinsky LS, El Goresy A (2000) Natural NaAlSi3O8–hollandite in the shocked Sixiangkou meteorite. Science 287:1633–1636. doi:10.1126/science.287.5458.1633
Hemley RJ (1987) Pressure dependence of Raman spectra of SiO2 polymorphs: α-quartz, coesite and stishovite. In: Manghnani MH, Syono Y (eds) High-pressure research in mineral physics. Terra, Tokyo, pp 347–359
Kinomura N, Kume S, Koizumi M (1975) Stability of K2Si4O9 with wadeite type structure. In: Osugi J (ed) Proceedings of 4th international conference on high pressure. Phys Chem Soc Japan, Kyoto, pp. 211–214
Lin C-C, Liu L (2006) Compositional dependence of elasticity in aluminosilicate glasses. Phys Chem Miner 33:332–346. doi:10.1007/s00269-006-0084-z
Liu L (1978) High-pressure phase transitions of kalsilite and related potassium bearing aluminosilicates. Geochem J 12:275–277
Liu L, Mernagh TP, Irifune T (1994) High pressure Raman spectra of β-Mg2SiO4, γ-Mg2SiO4, MgSiO3–ilmenite and MgSiO3–perovskite. J Phys Chem Solids 55:185–193. doi:10.1016/0022-3697(94)90077-9
Liu L, El Goresy A (2007) High pressure phase transitions in the feldspars and further characterization of lingunite. Int Geol Rev 49:854–860. doi:10.2747/0020-6814.49.9.854
McMillan P (1984) Structural studies of silicate glasses and melts—applications and limitations of Raman spectroscopy. Am Mineral 69:622–644
Mernagh TP (1991) Use of the laser Raman microprobe for discrimination amongst feldspar minerals. J Raman Spectrosc 22:453–457. doi:10.1002/jrs.1250220806
Mernagh TP, Liu L (1997) Temperature dependence of Raman spectra of quartz- and rutile-types of GeO2. Phys Chem Miner 24:7–16. doi:10.1007/s002690050012
Ringwood AE, Reid AF, Wadsley AD (1967) High-pressure KAlSi3O8 an aluminosilicate with sixfold coordination. Acta Crystallogr 23:1093–1095. doi:10.1107/S0365110X6700430X
Sueda Y, Irifune T, Nishiyama N, Rapp RP, Ferroir T, Onozawa T, Yagi T, Miyajima N, Merkel S, Funakoshi K (2004) A new unquenchable high-pressure form of KAlSi3O8 under lower mantle conditions. Geophys Res Lett L23612, doi:10–1029/2004GL021156
Tutti F, Dubrovinsky LS, Saxena SK, Carlson S (2001) Stability of KAlSi3O8 hollandite-type structure in the Earth’s lower mantle conditions. Geophys Res Lett 28(14):2735–2738. doi:10.1029/2000GL012786
Urakawa S, Kondo T, Igawa N, Shinomura O, Ohno H (1994) Synchrotron radiation study on the high-pressure and high temperature phase relations of KAlSi3O8. Phys Chem Miner 21:387–391. doi:10.1007/BF00203296
Acknowledgments
We are indebted to the financial support from the grants by the NSC in Taipei.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Liu, Lg., Lin, CC., Yung, Y.J. et al. Raman spectroscopic study of K-lingunite at various pressures and temperatures. Phys Chem Minerals 36, 143–149 (2009). https://doi.org/10.1007/s00269-008-0264-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00269-008-0264-0