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Herderite

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Siegmund August Wolfgang von Herder
Formula:
CaBePO4(F,OH)
Colour:
Colourless, pale yellow, greenish-white; colourless in transmitted light.
Lustre:
Vitreous, Sub-Vitreous
Hardness:
5 - 5½
Specific Gravity:
3.02
Crystal System:
Monoclinic
Name:
Named by Wilhelm Haidinger in 1828 in honor of Siegmund August Wolfgang von Herder (August 18, 1776 Germany - January 29, 1838 Dresden, Germany), Mining official in Freiberg, Germany.
Herderite-Hydroxylherderite Series. The fluorine-dominant analogue of Hydroxylherderite. Herderite is isotypic with Datolite.

Found usually as a pegmatite mineral formed during late-stage hydrothermal deposition.

Warning: Most specimens labeled "herderite" are in fact hydroxylherderite. True herderite probably does NOT occur at most of the localities listed here. Confirmed F-dominant specimens are presently known only from Brazil (two locations), Mogok, Yichun, and Namibia.

Visit gemdat.org for gemological information about Herderite.


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Classification of HerderiteHide

Approved, 'Grandfathered' (first described prior to 1959)
8.BA.10

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
A : With small and medium-sized cations
41.5.4.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
22.1.10

22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride

Physical Properties of HerderiteHide

Vitreous, Sub-Vitreous
Transparency:
Transparent, Translucent
Colour:
Colourless, pale yellow, greenish-white; colourless in transmitted light.
Hardness:
5 - 5½ on Mohs scale
Cleavage:
Imperfect/Fair
On {110}, interrupted.
Fracture:
Sub-Conchoidal
Density:
3.02 g/cm3 (Measured)    

Optical Data of HerderiteHide

Type:
Biaxial (-)
RI values:
nα = 1.556 - 1.592 nβ = 1.578 - 1.610 nγ = 1.589 - 1.620
2V:
Calculated: 70°
Max Birefringence:
δ = 0.033
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v moderate

Chemical Properties of HerderiteHide

Formula:
CaBePO4(F,OH)
IMA Formula:
CaBePO4F
Common Impurities:
H,OH

Crystallography of HerderiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 4.81 Å, b = 7.7 Å, c = 9.82 Å
β = 90.1°
Ratio:
a:b:c = 0.625 : 1 : 1.275
Unit Cell V:
363.70 ų (Calculated from Unit Cell)
Morphology:
Stout prismatic crystals [100] or [001]; thick tabular {001}. Commonly pseudo-orthorhombic in aspect, rarely monoclinic; pseudo-hexagonal [001] at times. Also occurs as botryoidal or spheroidal aggregates with a radial-fibrous structure.
Twinning:
On {100} or {001} as fishtail contact. Most crystals are twinned; however, some exhibit no outward signs of this morphology.

Crystallographic forms of HerderiteHide

Crystal Atlas:
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Herderite no.19 - Goldschmidt (1913-1926)
Herderite no.20 - Goldschmidt (1913-1926)
3d models and HTML5 code kindly provided by www.smorf.nl.

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X-Ray Powder DiffractionHide

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Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Type Occurrence of HerderiteHide

Synonyms of HerderiteHide

Other Language Names for HerderiteHide

Simplified Chinese:磷铍钙石
Traditional Chinese:磷鈹鈣石

Relationship of Herderite to other SpeciesHide

Other Members of this group:
BergslagiteCaBeAsO4(OH)Mon. 2/m : P21/b
Herderite-Hydroxylherderite SeriesMon.
HydroxylherderiteCaBe(PO4)(OH,F)Mon. 2/m : P21/b
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
Albite3 photos of Herderite associated with Albite on mindat.org.
Elbaite3 photos of Herderite associated with Elbaite on mindat.org.
Muscovite2 photos of Herderite associated with Muscovite on mindat.org.
Quartz2 photos of Herderite associated with Quartz on mindat.org.
Topaz2 photos of Herderite associated with Topaz on mindat.org.
Byssolite1 photo of Herderite associated with Byssolite on mindat.org.
Fluorite1 photo of Herderite associated with Fluorite on mindat.org.
Väyrynenite1 photo of Herderite associated with Väyrynenite on mindat.org.
Amblygonite1 photo of Herderite associated with Amblygonite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.BA.05VäyryneniteMn2+Be(PO4)(OH,F)Mon. 2/m : P21/b
8.BA.10BergslagiteCaBeAsO4(OH)Mon. 2/m : P21/b
8.BA.10HydroxylherderiteCaBe(PO4)(OH,F)Mon. 2/m : P21/b
8.BA.15BabefphiteBaBePO4(F,OH)Tet.

Related Minerals - Dana Grouping (8th Ed.)Hide

41.5.4.2HydroxylherderiteCaBe(PO4)(OH,F)Mon. 2/m : P21/b
41.5.4.3VäyryneniteMn2+Be(PO4)(OH,F)Mon. 2/m : P21/b
41.5.4.4BergslagiteCaBeAsO4(OH)Mon. 2/m : P21/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

22.1.1AmblygoniteLiAl(PO4)FTric. 1 : P1
22.1.2LacroixiteNaAl(PO4)FMon. 2/m : B2/b
22.1.3NatrophosphateNa7(PO4)2F · 19H2OIso. m3m (4/m 3 2/m) : Fd3c
22.1.5NacaphiteNa2Ca(PO4)FMon. 2/m : P21/b
22.1.6ArctiteNa2Ca4(PO4)3FTrig. 3m (3 2/m) : R3m
22.1.7NefedoviteNa5Ca4(PO4)4FTric.
22.1.9FluorapatiteCa5(PO4)3FHex. 6/m : P63/m
22.1.11IsokiteCaMg(PO4)FMon. 2/m : B2/b
22.1.12PanasqueiraiteCaMg(PO4)(OH,F)Mon.
22.1.13BabefphiteBaBePO4(F,OH)Tet.
22.1.14FluelliteAl2(PO4)F2(OH) · 7H2OOrth. mmm (2/m 2/m 2/m) : Fddd
22.1.15MinyuliteKAl2(PO4)2(OH,F) · 4H2OOrth. mm2 : Pba2
22.1.16MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2OMon. 2/m
22.1.17BøggilditeNa2Sr2Al2PO4F9Mon.
22.1.18FluorstrophiteSrCaSr3(PO4)3FHex. 6/m : P63/m
22.1.19ViitaniemiiteNa(Ca,Mn2+)Al(PO4)(F,OH)3Mon.
22.1.20VäyryneniteMn2+Be(PO4)(OH,F)Mon. 2/m : P21/b
22.1.21MaxwelliteNaFe3+(AsO4)FMon.
22.1.22Wagnerite(Mg,Fe2+)2(PO4)FMon. 2/m : P21/b
22.1.23Triplite(Mn2+,Fe2+)2(PO4)(F,OH)Mon. 2/m
22.1.24Magniotriplite(Mg,Fe2+,Mn2+)2PO4FMon.
22.1.25Zwieselite(Fe2+,Mn2+)2(PO4)FMon. 2/m : P21/b
22.1.26McauslaniteFe3Al2(PO4)3(PO3OH)F · 18H2OTric.
22.1.27RichelliteCaFe3+2(PO4)2(OH,F)2Amor.
22.1.28SvabiteCa5(AsO4)3FHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
22.1.29TilasiteCaMg(AsO4)FMon. m : Bb
22.1.30Johnbaumite-MCa5(AsO4)3OHMon. 2/m : P21/m
22.1.31DurangiteNaAl(AsO4)FMon. 2/m : B2/b

Other InformationHide

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

References for HerderiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Haidinger (1828) Philosophical Magazine and Journal of Science: 4: 1.
Breithaupt, A. (1830) Ubersicht des Mineral-System’s. 8vo, Freiberg: 23 (as Allogonite).
Breithaupt, A. (1832) Vollständige Characteristik etc. 2nd. Ed., Dresden: 78 (as Allogonite).
Dana (1884) American Journal of Science: 27: 229.
Des Cloizeaux (1884) Bulletin de la Société française de Minéralogie: 7: 130.
Genth (1884) American Philosophical Society, Philadelphia: 21: 694.
Hidden (1884) American Journal of Science: 27: 135 (as Glucinite).
Mackintosh (1884) American Journal of Science: 27: 135.
Dana, E.S. (1892) System of Mineralogy, 6th. Edition, New York: 760.
Ford (1912) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 50: 97.
Goldschmidt, V. (1918) Atlas der Krystallformen. 9 volumes, atlas, and text: vol. 4: 127.
Yatsevitch (1935) American Mineralogist: 20: 426.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 820-822.
American Mineralogist (1952): 37: 938.
Leavens, P.B., Dunn, P.J., Gaines, R.V. (1978): Compositional and refractive index variations of the herderite-hydroxylherderite series. American Mineralogist, 63, 913-917.
Gaines, Richard V., H. Catherine, W. Skinner, Eugene E. Foord, Brian Mason, Abraham Rosenzweig, Vandall T. King, (1997), Dana's New Mineralogy: The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana: 832.
Jahn, S. (1998) Der Herderit von Ehrenfriedersdorf - ein sächsischer Zankapfel. Mineralien Welt 9 (3): 24-28 + 64 [In German, on the discovery of herderite]
Anthony, J.W., Bideaux, R.A., Bladh, K.W., and Nichols, M.C. (2000) Handbook of Mineralogy, Volume IV. Arsenates, Phosphates, Vanadates. Mineral Data Publishing, Tucson, AZ, 680pp.: 242.
Harlow, G.E. & Hawthorne, F.C. (2008): Herderite from Mogok, Myanmar, and comparison with hydroxyl-herderite from Ehrenfriedersdorf, Germany. American Mineralogist, 93, 1545-1549.

Internet Links for HerderiteHide

Localities for HerderiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Argentina
 
  • San Luis
    • Chacabuco department
      • Sierra de la Estranzuela
http://minsocam.org/MSA/AmMin/TOC/Articles_Free/1999/Galliski_p773-777_99.pdf
Austria
 
  • Upper Austria
    • Mühlviertel
      • Perg
        • St Georgen an der Gusen
Meixner, H. (1977): 406. Herderit, Columbit, Beryll, und blaue Apatit-xx im Pegmatit von Luftenberg bei Linz, Oberösterreich (vorläufige Mitteilung). P. 23 in MEIXNER, H. (1977): Neue Mineralfunde aus Österreich XXVII. Carinthia II, 167./87., 7-30.; Gerhard Brandstetter collection (analysed, but method of analysis not given); Brandstetter, G. & M. Reich (1998): Luftenberg - eine bedeutende Pegmatitmineralisation in Oberösterreich. OÖ. Geonachr. 13, 11-25; Brandstetter, G. & Reich, M. (1999): Luftenberg - eine bedeutende Pegmatitmineralisation in Oberösterreich. Mineralien-Welt 10 (3), 12-18.
Brazil
 
  • Minas Gerais
    • Divino das Laranjeiras
      • Linópolis
Frank and Wendy Melanson (Hawthorneden) specimens
    • Governador Valadares
      • Golconda district
Leavens, et al. (1978) Am Min.; Leavens, P. et al, Compositional and Refractive Index Variations of the Herderite-Hydroxyl-herderite Series, Am Min v63, p 913-917 (1978)
    • Pedra Azul pegmatite district
Luis Menezes
Luiz Alberto Dias Menezes Filho, Mario Luiz de Sá Carneiro Chaves, Coralie Heinis Dias, Daniel Atencio (2016): Recent mineral discoveries in the Coronel Murta, Taquaral, and Medina pegmatite fields, northeastern Minas Gerais, Brazil. REM - Int. Eng. J. 69, 301-307. [http://www.scielo.br/pdf/remi/v69n3/2448-167X-remi-69-03-0301.pdf]
  • Paraíba
China
 
  • Fujian Province
    • Nanping Prefecture
      • Yanping District
        • Nanping pegmatite field (Xikeng pegmatite field)
Yueqing Yang, Wenying Wang, Yunxiang Ni, Chenghu Chen, and Jinghuang Zhu (1998): Geology of Fujian 17(2), 68-78
  • Jiangxi Province
    • Yichun Prefecture
      • Yuanzhou District
        • Yichun complex (Yashan batholith)
Xiaolong Huang, Rucheng Wang, Xiaoming Chen, Huan Hu, and Changshi Liu (2002): Canadian Mineralogist 40(4), 1047-1068; Xudong Che, Rucheng Wang, Huan Hu, Wenlan Zhang, and Xiaolong Huang (2007): Acta Petrologica Sinica 23(6), 1552-1560
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • South Bohemia Region
      • Nové Hrady
Welser, P., Zikeš, J.: Pegmatity od Šejb v Novohradských horách. Minerál, 2013, roč. 21, č. 5, s. 387-409.
  • Moravia (Mähren; Maehren)
    • Vysočina Region
      • Žďár nad Sázavou
[Lapis 1994:6 p49-50]
Finland
 
  • Western and Inner Finland Region
    • Orivesi
      • Eräjärvi area
Sandström, F. & Lahti, S.I. (2009): Viitaniemipegmatiten i Eräjärvi, Orivesi, Finland. Litiofilen 26 (1): 11-38
Germany
 
  • Bavaria
    • Franconia
      • Fichtelgebirge
        • Sparneck
          • Reinersreuth
            • Großer Waldstein
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 822; Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Tröstau
          • Leupoldsdorf
Lapis, 10 (7/8), 15-26+81
Lapis,10 (7/8), 40-48.
        • Weißenstadt
          • Großer Waldstein
Wittern: "Mineralfundorte in Deutschland", 2001
          • Kirchenlamitz
Leavens, P., Dunn, P., and Gaines, R., 1978, Compositional and Refractive Index Variations of the Herderite-Hydroxylherderite Series, American Mineralogist, 63:913-917.
          • Rudolfstein
Wittern: "Mineralfundorte in Deutschland", 2001
  • Saxony
    • Erzgebirge
      • Ehrenfriedersdorf
Kingsbury, A.W.G. (1958) Two beryllium minerals new to Britain: euclase and herderite. Mineralogical Magazine, vol. 31, n° 240, 815-817.; Palache, C., Berman, H., & Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 822.; Wittern (2001) Mineralfundorte in Deutschland.
Italy
 
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Baveno
        • Oltrefiume
          • Mount Camoscio
American Mineralogist, 84(5-6), 782-789
Myanmar
 
  • Mandalay Region (Mandalay Division)
    • Pyin-Oo-Lwin District
Harlow, G.E. & Hawthorne, F.C. (2008): Herderite from Mogok, Myanmar, and comparison with hydroxyl-herderite from Ehrenfriedersdorf, Germany. American Mineralogist, 93, 1545-1549.
        • Kyauk-Pyat-That
Harlow, G.E. & Hawthorne, F.C. (2008): Herderite from Mogok, Myanmar, and comparison with hydroxyl-herderite from Ehrenfriedersdorf, Germany. American Mineralogist, 93, 1545-1549.
          • Sakangyi (Sakhan-gyi)
Praszkier, T. and Sacchi, M. (2012) Huge pocket from Sakangyi, Myamnar. Minerals, the collector's newspaper, #4, 1-7.
Namibia
 
  • Erongo Region
Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern, 321 pp. (in English)
    • Karibib District
M Kampf collection
Pakistan
 
  • Gilgit-Baltistan (Northern Areas)
    • Astor District (Astore District)
Dudley Blauwet, Bill Smith and Carol Smith (2004) Table of mineral localities of the northern areas of Pakistan and other selected sites. (in "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton, Connecticut); Dudley Blauwet, Bill Smith and Carol Smith (2004) Table of mineral localities of the northern areas of Pakistan and other selected sites. (in "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton, Connecticut); Dudley Blauwet et al. (2004), Pakistan: Minerals, Mountains & Majesty", Lapis International
    • Baltistan
      • Skardu District
        • Braldu Valley
Polityka, J. (2004): What's New in Minerals. Springfield Show 2003 Mineralogical Record. 35 (2), 148-150; Weerth, A. & Weiß, S. (2016): Neues aus der Grenzregion Pakistan/Afghanistan. Lapis, 41 (10), 30-39 (in German).
        • Haramosh Mts.
Van King
No reference listed
TVM Specimen
    • Gilgit District
      • Hunza Valley
ExtraLapis No. 24 Pakistan & Afghanistan
Russia
 
  • Far-Eastern Region
    • Chukotskii Autonomous Okrug
      • Krasnoarmeiskii
Pavel M. Kartashov data
  • Urals Region
    • Middle Urals
      • Sverdlovskaya Oblast'
        • Sarapulka District (Murzinka)
Kingsbury, A.W.G. (1958) Two beryllium minerals new to Britain: euclase and herderite. Mineralogical Magazine, vol. 31, n° 240, 815-817.
    • Southern Urals
      • Chelyabinsk Oblast'
        • Kamensk-Ural'skii
N.A. Grigoriev, Zap. Vses. Mineral. Ob. , 1964, 93 (2), 156.
Spain
 
  • Castile and Leon
    • Zamora
      • Villar del Buey
        • Pinilla de Fermoselle
Am Min 90:1887-1899
Sweden
 
  • Södermanland
    • Haninge
      • Utö
Gustafsson, Lars (1991): Eosphorit från Utö. Berg & Mineral(Medlemstidning för Stockholms Amatørgeologiska Sällskap). 1, nr 1, p. 18; Berg & Mineral nr 2, 1991, p. 11
    • Nynäshamn
      • Norrö
Gustafson, Lars.(1989): Norrö glimmerbrott.Stuffen (Medlemsblad för Södertörn Amatörgeologiska Sällskap). Nr 39, nov 1989, 8-12; Gustafsson, Lars & Otter, Bertil (1991): Mineralförekomster i Stockholmstrakten.Del 2. STEIN 18(4),4-12
UK
 
  • England
    • Cornwall
      • St Austell District
        • Lanlivery
Kingsbury, A.W.G. (1958) Two beryllium minerals new to Britain: euclase and herderite. Mineralogical Magazine, vol. 31, n° 240, 815-817.; Golley & Williams (1995) Cornish Mineral Reference Manual, 32.
      • St Just District
        • St Just
          • Botallack
            • Botallack Mine sett
Kingsbury, A.W.G. (1958): Mineralogical Magazine 29, 815-817
            • Cliff outcrops
Kingsbury, A.W.G. (1958) Two beryllium minerals new to Britain: euclase and herderite. Mineralogical Magazine, vol. 31, n° 240, 815-817.
    • Devon
      • Okehampton area (Northern Dartmoor)
von Knorring, O., and Condliffe, E. (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, vol. 48, n° 348, 443-448.
USA
 
  • California
    • Riverside Co.
      • Cooper Canyon District
        • Iron Spring Mountain
Leavens, et al., 1978, Compositional and Refractive Index Variations of the Herderite-Hydroxyl-herderite Series, American Mineralogist, v 63, p. 913-917.
    • San Diego Co.
      • Jacumba District
        • Jacumba
          • Tule Mountain (Mount Tule; Tulley Mountain)
Mineralogical Record 33(5):363-407
Mineralogical Record 33(5):363-407
      • Mesa Grande District
        • Gem Hill
Foord, E. E. (1977), Famous Mineral Localities: the Himalaya Dike System, Mesa Grande District, San Diego County, California. Mineralogical Record 8(6): p. 473.
      • Warner Springs District
        • Warner Springs
Kampf, A. R., et al (2003), Tourmaline Discovery at the Cryo-Genie Mine, San Diego County, California, Rocks & Minerals 78(3), 156-168.
  • Connecticut
    • Middlesex Co.
      • East Hampton (Chatham)
        • Cobalt
Januzzi (1994); Schooner (1958)
  • Maine
    • Oxford Co.
      • Buckfield
Leavens, P., Dunn, P., and Gaines, R., 1978, Compositional and Refractive Index Variations of the herderite-hydroxyl-herderite series, American Mineralogist, v. 63, p. 913-917.
      • Greenwood
        • Uncle Tom Mountain
Informal wording about a mistaken dealer label in Mineral News (1998) 14:8 pp2,9
      • Newry
Leavens, P. et al, Compositional and Refractive Index Variations of the Herderite-Hydroxyl-herderite Series, Am Min v63, p 913-917 (1978)
  • New Hampshire
    • Grafton Co.
      • Groton
Leavens, P., Dunn, P., and Gaines, R., 1978, Compositional and Refractive Index Variations of the herderite-hydroxyl-herderite series, American Mineralogist, v. 63, p. 913-917.
  • North Carolina
    • Cleveland Co.
      • Kings Mountain District
Smithsonian Institution Mineral Reference Collection No.166758-00
    • Gaston Co.
      • Bessemer City
Smithsonian Institution Mineral Reference Collection No.168467-00
  • Virginia
    • Amelia Co.
      • Amelia (Amelia Court House)
Lumpkin, G. R. (1998). Rare-element mineralogy and internal evolution of the Rutherford# 2 Pegmatite, Amelia County, Virginia; a classic locality revisited. The Canadian Mineralogist, 36(2), 339-353.
Mineral and/or Locality  
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