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There are two variants of albite, which are referred to as 'low albite' and 'high albite'; the latter is also known as 'analbite'. Although both variants are triclinic, they differ in the volume of their unit cell, which is slightly larger for the 'high' form. The 'high' form can be produced from the
692:, albeit semiprecious. Albite is also used by geologists as it is identified as an important rock forming mineral. There is some industrial use for the mineral such as the manufacture of
606:
Oftentimes, potassium can replace the sodium characteristic in albite at amounts of up to 10%. When this is exceeded the mineral is then considered to be
648:
composition. Minerals that albite is often considered associated with in occurrence include biotite, hornblende, orthoclase, muscovite and quartz.
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830:
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often as minute parallel striations on the crystal face. Albite often occurs as fine parallel segregations alternating with pink
1086:
591:'low' form by heating above 750 °C (1,380 °F) High albite can be found in meteor impact craters such as in
159:
311:
1076:
344:
1071:
603:; this variant is also known as 'monalbite'. Albite melts at 1,100–1,120 °C (2,010–2,050 °F).
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1033:. «Memories of the Stone». — Moscow: Publishing House of the USSR Academy of Sciences, 1958.
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One or more of the preceding sentences incorporates text from a publication now in the
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Common giving polysynthetic striae on {001} or {010} also contact, simple and multiple
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Crystals commonly tabular, divergent aggregates, granular, cleavable massive
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One of the iridescent varieties of albite, discovered in 1925 near the
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595:. Upon further heating to more than 1,050 °C (1,920 °F) the
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Low- and high-temperature structural modifications are recognized
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Albite was first reported in 1815 for an occurrence in Finnbo,
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Perfect on {001}, very good on {010}, imperfect on {110}
538:. Its color is usually pure white, hence its name from
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series. It represents a plagioclase with less than 10%
904:"Congruent melting of albite: theory and experiment"
503:content. The pure albite endmember has the formula
991:Loose Gemstone Guide – Secrets of the Gem Revealed
852:"High-temperature albite and contiguous feldspars"
253:White to gray, blueish, greenish, reddish; may be
1053:
16:Mineral, Na-feldspar, Na-silicate, tectosilicate
901:
839:(11th ed.). Cambridge University Press.
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707:, became widely known under the trade name
575:of 6 to 6.5. Albite almost always exhibits
543:
27:
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457:1,100–1,120 °C (2,010–2,050 °F)
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825:
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637:deposits, and forms part of the typical
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329:Vitreous, typically pearly on cleavages
237:β = 116.4°, γ = 90.28°; Z = 4
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902:Greenwood, J. P.; Hess, P. C. (1998).
988:
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587:as a result of exolution on cooling.
850:Tuttle, O. F.; Bowen, N. L. (1950).
730:"IMA–CNMNC approved mineral symbols"
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548:. It is a common constituent in
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908:Journal of Geophysical Research
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626:masses (often as the variety
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7:
571:is about 2.62 and it has a
430:85–90° (low); 52–54° (high)
10:
1103:
599:changes from triclinic to
349:Transparent to translucent
234:c = 7.11 ; α = 93.45°
1087:Minerals in space group 2
563:Albite crystallizes with
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644:for rocks of originally
836:Encyclopædia Britannica
777:Handbook of Mineralogy
734:Mineralogical Magazine
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678:
567:pinacoidal forms. Its
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972:"Associated minerals"
703:coast by academician
676:
462:Other characteristics
160:Strunz classification
1077:Luminescent minerals
914:(B12): 29815–29828.
688:Albite is used as a
296:Uneven to conchoidal
891:Monalbite on Mindat
755:10.1180/mgm.2021.43
746:2021MinM...85..291W
728:Warr, L.N. (2021).
495:of the plagioclase
491:. It is the sodium
231:a = 8.16, b = 12.87
1072:Triclinic minerals
856:Journal of Geology
679:
642:metamorphic facies
364:Optical properties
1047:Mineral galleries
1030:Alexander Fersman
921:10.1029/98JB02300
705:Alexander Fersman
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36:Albite from Crete
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1005:"Uses of albite"
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989:Nipperkin, Pao.
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597:crystal symmetry
593:Winslow, Arizona
577:crystal twinning
569:specific gravity
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373:Refractive index
355:Specific gravity
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954:"Cleavelandite"
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829:, ed. (1911). "
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802:Webmineral data
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1062:Tectosilicates
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1041:External links
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1009:britannica.com
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976:www.mindat.org
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958:www.mindat.org
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936:"Anorthoclase"
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878:www.mindat.org
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827:Chisholm, Hugh
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740:(3): 291–320.
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696:and ceramics.
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497:solid solution
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245:Identification
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170:Crystal system
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874:"High Albite"
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862:(5): 572–583.
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822:public domain
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628:cleavelandite
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618:It occurs in
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573:Mohs hardness
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536:tectosilicate
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453:Melting point
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414:
413:Birefringence
410:
404:= 1.538–1.542
400:
397:
395:= 1.532–1.537
391:
388:
386:= 1.528–1.533
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262:Crystal habit
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182:Crystal class
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62:tectosilicate
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1024:
1012:. Retrieved
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632:hydrothermal
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608:anorthoclase
605:
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478:
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444:
440:
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389:
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213:
189:Pinacoidal (
639:greenschist
630:), in some
483:plagioclase
367:Biaxial (+)
345:Diaphaneity
209:Space group
54:plagioclase
1056:Categories
791:Mindat.org
715:References
709:belomorite
614:Occurrence
601:monoclinic
581:microcline
559:Properties
534:. It is a
470:References
436:Dispersion
312:Mohs scale
198:H-M symbol
150:IMA symbol
1082:Gemstones
764:235729616
701:White Sea
652:Discovery
624:pegmatite
565:triclinic
501:anorthite
493:endmember
359:2.60–2.65
255:chatoyant
224:Unit cell
175:Triclinic
1067:Feldspar
690:gemstone
646:basaltic
620:granitic
585:perthite
486:feldspar
426:2V angle
315:hardness
302:Tenacity
292:Fracture
282:Cleavage
272:Twinning
58:feldspar
50:Category
1014:4 April
824::
742:Bibcode
662:Dalarna
552:rocks.
489:mineral
420:= 0.010
306:Brittle
164:9.FA.35
131:3.0–2.9
122:1.0–1.1
113:0.0–0.1
104:1.0–0.9
69:Formula
45:General
22:Albites
831:Albite
818:
762:
677:Albite
666:Sweden
550:felsic
479:Albite
335:Streak
325:Luster
196:(same
78:NaAlSi
760:S2CID
694:glass
658:Falun
545:albus
540:Latin
481:is a
443:<
339:White
319:6–6.5
250:Color
1016:2019
635:vein
622:and
447:weak
916:doi
912:103
833:".
750:doi
684:Use
583:in
97:or
1058::
1007:.
974:.
956:.
938:.
910:.
906:.
876:.
860:58
858:.
854:.
783:^
758:.
748:.
738:85
736:.
732:.
711:.
668:.
664:,
660:,
610:.
542:,
512:Si
509:Al
506:Na
154:Ab
126:Si
117:Al
108:Ca
99:Na
60:,
56:,
1018:.
993:.
978:.
960:.
942:.
924:.
918::
880:.
766:.
752::
744::
529:8
523:O
518:3
445:v
441:r
418:δ
402:γ
399:n
393:β
390:n
384:α
381:n
217:1
214:C
200:)
193:)
191:1
140:8
135:O
92:8
87:O
83:3
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
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