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Feldspar Group

Big Photo

Organ Mts, Organ District, Doña Ana Co., New Mexico, USA
© Rob Lavinsky

Show Feldspar Group Photos (94)


A group of silicate minerals.
Most of the photos shown here are of K Feldspar.

Classification of Feldspar Group

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Relationship of Feldspar Group to other Species

Minerals Related to Group:
:
Na[AlSi
 
3
O
 
8
]
:
(Na,Ca)[Al(Si,Al)Si
 
2
O
 
8
]
:
Ca[Al
 
2
Si
 
2
O
 
8
]
:
(Na,K)[AlSi
 
3
O
 
8
]
:
BaNa
 
2
[Al
 
2
Si
 
2
O
 
8
]
 
2
:
(NH
 
4
)[AlSi
 
3
O
 
8
]
:
(Ca,Na)[Al(Al,Si)Si
 
2
O
 
8
]
:
Ba[Al
 
2
Si
 
2
O
 
8
]
:
Ca[Al
 
2
Si
 
2
O
 
8
]
:
(K,Ba)[Al(Si,Al)Si
 
2
O
 
8
]
:
(Ca,Na)[Al(Al,Si)Si
 
2
O
 
8
]
:
K[AlSi
 
3
O
 
8
]
:
(Na,Ca)[Al(Si,Al)Si
 
2
O
 
8
]
:
K[AlSi
 
3
O
 
8
]
:
Ba[Al
 
2
Si
 
2
O
 
8
]
:
Na[BSi
 
3
O
 
8
]
:
K[AlSi
 
3
O
 
8
]
:
(Sr,Ca)[Al
 
2
Si
 
2
O
 
8
]
:
SrNa
 
2
[Al
 
2
Si
 
2
O
 
8
]
 
2
:
Ca[Al
 
2
Si
 
2
O
 
8
]

Other Names for Feldspar Group

Synonyms:
BarbieriteFeldsparFelsparFelt-spatRhombic Quartz
Other Languages:
Arabic:مجموعة الفلدسبار
Bosnian (Latin Script):Feldspat
Catalan:Feldspat
Czech:Živec
Danish:Feldspat
Dutch:Veldspaat
Esperanto:Feldspato
Estonian:Päevakivi
Finnish:Maasälpä
French:Feldspath
Galician:Feldespato
German:Feldspat
Feldspath
Feldstein
Feldtspat
Hebrew:פצלת השדה
Hungarian:Földpátok
Icelandic:Feldspat
Italian:Feldspato
Japanese:長石
Korean:장석
Latvian:Laukšpats
Lithuanian:Lauko špatas
Norwegian (Bokmål):Feltspat
Norwegian (Nynorsk):Feltspat
Persian:فلدسپات
Polish:Skaleń
Portuguese:Feldspato
Romanian:Feldspat
Russian:Полевой шпат
Serbian (Cyrillic Script):Фелдспат
Simplified Chinese:长石
Slovak:Skupina živca
Spanish:Feldespato
Swedish:Fältspat
Turkish:Feldspat

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Feldspar Group

Reference List:Smith, J.V. and MacKenzie, W.S. (1958) Alkali feldspars. IV. The cooling history of high-temperature sodium-rich feldspars. American Mineralogist: 43: 872-889.

Laves, F. (1960) The feldspars, their polysynthetic twinning and their phase relations. Rend. Soc. Mineral. Ital.: 16: 37-100.

O'Neil, J.R. and Taylor, H.P. (1967) The oxygen isotope and cation exchange chemistry of feldspars. American Mineralogist: 52: 1414-1437.

Kastner, M. (1971) Authigenic feldspars in carbonate rocks. American Mineralogist: 56: 1403-1440.

MacKenzie, W.S. and J. Zussman, Eds., The Feldspars (1974). Manchester University Press, U.K.

Willaime, C. and Brown, W.L. (1974) A coherent elastic model for the determination of the orientation of exsolution boundaries: application to the feldspars: Acta Crystallographica: A30: 316-331.

Holdren, G.R., Jr. and Berner, R.A. (1979) Mechanism of feldspar weathering. I. Experimental studies. Geochimica et Cosmochimica Acta: 43: 1161-1171.

Kastner, M. and Siever, R. (1979) Low temperature feldspars in sedimentary rocks. American Journal of Science: 279: 435-479.

Ribbe, P.H., Ed., Feldspar Mineralogy (1983), Reviews in Mineralogy, Mineralogical Society of America, Chantilly, Virginia.

Lehmann, G. (1984) Spectroscopy of feldspars. In: Feldspars and Feldspathoids: Structure, Properties and Occurrences (W.L. Brown, editor). NATO Adv. Study Inst. Ser. C: 421. Reidel Publishing Co., Dordrecht, The Netherlands (121-162).

Parsons, I. and Brown, W.L. (1984) Feldspars and the thermal history of igneous rocks. In: Feldspars and Feldspathoids: Structure, Properties and Occurrences (W.L. Brown, editor). NATO Adv. Study Inst. Ser. C: 421. Reidel Publishing Co., Dordrecht, The Netherlands (317-371).

Hofmeister, A.M. and Rossman, G.R. (1985) A model for the irradiative coloration of smokey feldspar and the inhibiting influence of water. Physics and Chemistry of Minerals: 12: 324-332.

Holdren, G.R., Jr. and Speyer, P.M. (1985) Reaction rate-surface area relationships during the early stages of weathering. I. Initial observations. Geochimica et Cosmochimica Acta: 49: 675-681.

Holdren, G.R., Jr. and Speyer, P.M. (1987) Reaction rate-surface area relationships during the early stages of weathering. II. Data on eight additional feldspars. Geochimica et Cosmochimica Acta: 51: 2311-2318.

Angel, R.J., Hazen, R.M., McCormick, T.C., Prewitt, C.T., and Smyth, J.R. (1988), Comparative compressibility of end-member feldspars. Physics and Chemistry of Minerals: 15: 313-318.

Smith J.V. and Brown, W.L. (1988), Feldspar Minerals. Crystal structures, physical, chemical, and microstructural properties, vl. 1. Springer-Verlage. New York.

Milliken, K.L. (1989) Petrographyand composition of authigenic feldspars. Oligocene Frio formation, south Texas. ournal of Sedimentary Petrology: 59: 361-374.

Murphy, W.M. (1989) Dislocations and feldspar dissolution. European Journal of Mineralogy: 1: 315-326.

Graham, C.M. and Elphick, S.C. (1990) A re-examination of the role of hydrogen in Al-Si interdiffusion in feldspars. Contributions to Mineralogy and Petrology: 104: 481-491.

Angel, R.J. (1994), Feldspars at high pressure. In I. Parsons, Editor, Feldspars and their reactions, NATO ASI series C: 421: 271-312. Kluwer, Dordrecht.

Foland, K.A. (1994) Argon diffusion in feldspars. In: Feldspars and their Reactions (I. Parsons, ed.). NATO Adv. Study Inst. Ser. C, 421. Kluwer Academic Publishers, Dordrecht, The Netherlands.

Spooner, N.A. (1994) The anomalous fading of infrared-stimulated luminescence from feldspars. Radiation Measurements: 23: 625-632.

Johnson, E.A. and Rossman, G.R. (2003) The concentration and speciation of hydrogen in feldspars using FTIR and 1 H MAS NMR spectroscopy. American Mineralogist: 88: 901-911.

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    Localities for Feldspar Group

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