SUPPORT US. Covid-19 has significantly affected our fundraising. Please help!
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography


This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About TavoriteHide

Grass-green, yellow-green
Sub-Vitreous, Resinous, Waxy, Greasy
Specific Gravity:
Crystal System:
Named in 1954 by Marie Louise Lindberg (Smith) and William T. pecora in honor of Elysairio Tavora [b. 1911 Brasil], professor of mineralogy, Universidad de Brasil Rio de Janeiro, Brasil.
Isostructural with:

Classification of TavoriteHide

Approved, 'Grandfathered' (first described prior to 1959)
First published:

B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1

5 : (AB)2(XO4)Zq

19 : Phosphates
1 : Phosphates of the alkali metals

Physical Properties of TavoriteHide

Sub-Vitreous, Resinous, Waxy, Greasy
Transparent, Translucent
Grass-green, yellow-green
Pale yellow green
Perfect on {100}, good on {110}, distinct on {011}, and on {001}, imperfect.
3.32 g/cm3 (Measured)    3.33 g/cm3 (Calculated)

Optical Data of TavoriteHide

Biaxial (+)
RI values:
nα = 1.795 nβ = 1.811 nγ = 1.861
Measured: 74° , Calculated: 78°
Max Birefringence:
δ = 0.066
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
r << v
Optical Extinction:
Y^b ~ 0°, Z^c ~38°, X^a ~ 15°
X = Y = yellow-green, Z = colorless

Chemical Properties of TavoriteHide


Crystallography of TavoriteHide

Crystal System:
Class (H-M):
1 - Pinacoidal
Space Group:
Cell Parameters:
a = 5.340 Å, b = 7.283 Å, c = 5.110 Å
α = 109.29°, β = 97.86°, γ = 106.32°
a:b:c = 0.733 : 1 : 0.702
Unit Cell V:
174.14 ų (Calculated from Unit Cell)
Bladed crystals, often rounded and/or etched. Found as fine-grained masses to sever mm

Crystal StructureHide

Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
CIF File    Best | x | y | z | a | b | c
Stop | Start
Console Off | On | Grey | Yellow
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0020848TavoriteMarx N, Croguennec L, Carlier D, Wattiaux A, Le Cras F, Suard E, Delmas C (2010) The structure of tavorite LiFePO4(OH) from diffraction and GGA + U studies and its preliminary electrochemical characterization Dalton Transactions 39 5108-51162010synthetic0293
0012660TavoriteYakubovich O V, Urusov V S (1997) The structure and electron density of Fe2+ -bearing tavorite in relation to the genetic crystal chemistry of secondary phosphates of lithium pegmatites Geochemistry International 35 630-6381997synthetic0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
4.99 Å(50)
4.68 Å(30)
3.95 Å(20)
3.285 Å(90)
3.045 Å(100)
2.474 Å(40)
1.662 Å(3b)

Type Occurrence of TavoriteHide

General Appearance of Type Material:
Bright lime green scales and fine-grained masses
Geological Setting of Type Material:
Late stage phosphate mineralization in a granite pegmatite
Associated Minerals at Type Locality:
Lindberg, M.L., Pecora, W.T. (1954) Tavorite and barbosalite: two new phosphate minerals from Minas Gerais, Brazil. Science: 119: 739-739.

Other Language Names for TavoriteHide


Relationship of Tavorite to other SpeciesHide

Other Members of this group:
AmblygoniteLiAl(PO4)FTric. 1 : P1
MontebrasiteLiAl(PO4)(OH)Tric. 1 : P1
NatromontebrasiteMasses of white mineral.Tric.

Common AssociatesHide

Associated Minerals Based on Photo Data:
12 photos of Tavorite associated with HureauliteMn2+5(PO3OH)2(PO4)2 · 4H2O
10 photos of Tavorite associated with RockbridgeiteFe2+Fe3+4(PO4)3(OH)5
7 photos of Tavorite associated with BarbosaliteFe2+Fe3+2(PO4)2(OH)2
6 photos of Tavorite associated with GiniiteFe2+Fe3+4(PO4)3(OH)5 · 2H2O
4 photos of Tavorite associated with TriphyliteLiFe2+PO4
2 photos of Tavorite associated with MélonjosephiteCaFe2+Fe3+(PO4)2(OH)
1 photo of Tavorite associated with RobertsiteCa2Mn3+3(PO4)3O2 · 3H2O
1 photo of Tavorite associated with StrengiteFePO4 · 2H2O
1 photo of Tavorite associated with LeucophosphiteKFe3+2(PO4)2(OH) · 2H2O
1 photo of Tavorite associated with QuartzSiO2

Related Minerals - Nickel-Strunz GroupingHide

8.BB.XArsenowagneriteMg2(AsO4)FMon. 2/m : P21/b
8.BB.05AmblygoniteLiAl(PO4)FTric. 1 : P1
8.BB.05MontebrasiteLiAl(PO4)(OH)Tric. 1 : P1
8.BB.10TripliteMn2+2(PO4)FMon. 2/m
8.BB.10ZwieseliteFe2+2(PO4)FMon. 2/m : P21/b
8.BB.15SarkiniteMn2+2(AsO4)(OH)Mon. 2/m : P2/m
8.BB.15TriploiditeMn2+2(PO4)(OH)Mon. 2/m : P2/b
8.BB.15Wagnerite(Mg,Fe2+)2(PO4)FMon. 2/m : P21/b
8.BB.15WolfeiteFe2+2(PO4)(OH)Mon. 2/m : P21/b
8.BB.15JoosteiteMn2+(Mn3+,Fe3+)(PO4)OMon. 2/m
8.BB.15HydroxylwagneriteMg2(PO4)(OH)Mon. 2/m : P21/b
8.BB.20HoltedahliteMg2(PO4)(OH)Trig. 3m : P3 1m
8.BB.20Satterlyite(Fe2+,Mg,Fe)12(PO4)5(PO3OH)(OH,O)6Trig. 3m (3 2/m) : P3 1m
8.BB.25AlthausiteMg4(PO4)2(OH,O)(F,◻)Orth. mmm (2/m 2/m 2/m) : Pnma
8.BB.30AdamiteZn2(AsO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.30EveiteMn2+2(AsO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.30LibetheniteCu2(PO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.30OliveniteCu2(AsO4)(OH)Mon. 2/m : P21/m
8.BB.30ZincolibetheniteCuZn(PO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.30ZincoliveniteCuZn(AsO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.30AuriacusiteFe3+Cu2+(AsO4)OOrth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.35ParadamiteZn2(AsO4)(OH)Tric. 1 : P1
8.BB.35TarbuttiteZn2(PO4)(OH)Tric. 1 : P1
8.BB.40BarbosaliteFe2+Fe3+2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40LazuliteMgAl2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40ScorzaliteFe2+Al2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.45TrolleiteAl4(PO4)3(OH)3Mon. 2/m : B2/b
8.BB.50NamibiteCu(BiO)2(VO4)(OH)Tric. 1 : P1
8.BB.70TuraniteCu5(VO4)2(OH)4Tric. 1 : P1
8.BB.80FingeriteCu11(VO4)6O2Tric. 1 : P1
8.BB.90ZinclipscombiteZnFe3+2(PO4)2(OH)2Tet. 4 2 2 : P43 21 2

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

19.1.1LithiophosphateLi3PO4Orth. mm2 : Pmn21
19.1.3NahpoiteNa2(PO3OH)Mon. 2/m : P21/m
19.1.4DorfmaniteNa2(PO3OH) · 2H2OOrth.
19.1.6Stercorite(NH4)Na(PO3OH) · 4H2OTric.
19.1.7Archerite(K,NH4)(H2PO4)Tet. 4 2m : I4 2d
19.1.8BiphosphammiteNH4(H2PO4)Tet. 4 2 2 : I41 2 2
19.1.9Phosphammite(NH4)2(PO3OH)Mon. 2/m : P21/b
19.1.10LithiophiliteLiMn2+PO4Orth. mmm (2/m 2/m 2/m) : Pmna
19.1.13TriphyliteLiFe2+PO4Orth. mmm (2/m 2/m 2/m) : Pmna
19.1.15MarićiteNaFe2+(PO4)Orth. mmm (2/m 2/m 2/m) : Pmna

Fluorescence of TavoriteHide

Not fluorescent

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 TavoriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Lindberg, M.L., Pecora, W.T. (1954) Tavorite and barbosalite: two new phosphate minerals from Minas Gerais, Brazil. Science: 119: 739-739.
Lindberg, M.L., Pecora, W.T. (1955) Tavorite and barbosalite, two new phosphate minerals from Minas Gerias, Brazil. American Mineralogist: 40: 952-966.
Fleischer, M. (1954) New mineral names. American Mineralogist: 39: 848-852.
Fransolet, A.-M., Tarte, P. (1977) Infrared spectra of analyzed samples of the amblygonite-montebrasite series; a new rapid semi-quantitative determination of fluorine. American Mineralogist: 62: 559-564.
Genkina, E.A., Kabalov, Yu.K., Maksimov, B.A., Melnikov, O.K. (1984) The crystal structure of synthetic tavorite LiFe(PO4)(OH,F). Kristallografiya (Soviet Physics - Crystallography): 29: 27-30.
Roberts, A.C., Dunn, P.J., Grice, J.D., Newbury, D.E., Roberts, W.L. (1988) The X-ray crystallography of tavorite from the Tip Top pegmatite, Custer, South Dakota. Powder Diffraction: 3: 93-95.
Pizarro-Sanz, J.L., Dance, J.M., Villeneuve, G., Arriortua-Marcaida, M.I. (1994) The natural and synthetic tavorite minerals: crystal chemistry and magnetic properties. Materials Letters: 18(5-6): 327-330.
Yakubovich, O.V., Urusov, V.S. (1997) The structure and electron density of Fe2+-bearing tavorite in relation to the genetic crystal chemistry of secondary phosphates of lithium pegmatites. Geochemistry International: 35: 630-638.
Marx, N., Croguennec, L., Carlier, D., Wattiaux, A., Le Cras, F., Suard, E., Delmas, C. (2010) The structure of tavorite LiFePO4(OH) from diffraction and GGA + U studies and its preliminary electrochemical characterization. Dalton Transactions: 39: 5108-5116.

Internet Links for TavoriteHide

Localities for TavoriteHide

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.
  • San Luis Province
    • San Martín department
      • Las Aguadas
Roda-Robles, E., Galliski, M. A., Roquet, M. B., Hatert, F., & de Paeseval, P. (2012). Phosphate nodules containing two distinct assemblages in the Cema granitic pegmatite, San Luis province, Argentina: Paragenesis, composition and significance. The Canadian Mineralogist, 50(4), 913-931.
  • Minas Gerais
    • Conselheiro Pena
Cassedanne, J.P., Cassedanne, J.O. (1982) Presence de legrandite dans une pegmatite de Minas Gerais, Bresil. The Canadian Mineralogist: 20(1): 87-89.
Sergio Varvello
Sergio Varvello collection
Baijot, M., Hatert, F., Dal Rio, F. & Philipo, S. (2014) Mineralogy and petrography of phosphate mineral association from the Jocão pegmatite, Minas Gerais, Brazil. Canadian Mineralogist 52, 373-397.
    • Galiléia
      • Laranjeiras
[MinRec 12:69]
      • Sapucaia do Norte
AmMin 89:1087
Science (1954): 119: 739; Lindberg, M.L. and Pecora, W.T. (1955) Tavorite and barbosalite, two new phosphate minerals from Minas Gerais, Brazil. American Mineralogist 40, 952-966.
  • Paraíba
    • Pedra Lavrada
Am Min (1955) 40:55-63
Wegner, R., Pöllmann, H., Witzke, T., Schuckmann, W. (1998) Colquiriite, carlhintzeite, ralstonite and pachnolite from Serra Branca-Pegmatite/Brazil.- Proceedings 17th General Meeting, IMA, August 1998, Toronto: A151.
  • Bavaria
    • Upper Palatinate
      • Neustadt an der Waldnaab District
        • Waidhaus
Dill, H.G. (2009) The Hagendorf-Pleystein phosphate pegmatites (NE Bavaria, Germany) - A mineralogical, chronological and sedimentological overview. Estudos Geológicos: 19(2): 117-120.,3772,1
  • Amoron'i Mania
    • Ambatofinandrahana
      • Mandrosonoro
Behier, J. (1960): Contribution á la mineralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p 63-64
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Tazenakht
FRANSOLET, A.-M. (1974) Les phosphates lithiques des pegmatites de la plaine des Zenaga (Anti-Atlas, Maroc). Notes Serv. géol. Maroc, 35, 137-143
  • Marrakesh-Safi Region
    • Rehamna Province
      • Sidi Bou Othmane Cercle
        • Jebilet Mtn (Djebilet Mtn)
          • Sidi Bou Othmane
Favreau, G. (2012): Deux pegmatites à phosphates de Sidi Bou Othmane (Maroc). Le Cahier des Micromonteurs, 3-2012, 71-109
  • Erongo Region
    • Dâures Constituency
Von Bezing, L., Bode, R., and Jahn, S., (2008) Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern. 409 (in English).
Keller (1974)
    • Karibib Constituency
      • Okatjimukuju Farm 55 (Friedrichsfelde Farm)
P. Keller and O. von Knorring, Eur. J. Mineral. , 1989, 1, pp. 567-593.
      • Okongava Ost Farm 72
Collection of Barry Murphy, Micromount specimen catalogue number 00896
      • Tsaobismund Farm 85
Contrib Mineral Petrol (1986) 92:502-517
  • Viseu
    • Mangualde
Gramaccioli, C.M. (1981) Mangualde. Lapis, 6 (7-8), 27-30.; van den Berg, W. (1992) Enkele vermaarde mineralenvindplaatsen in Midden-Portugal. Gea, 1992(1), 38-39 (in Dutch).
Mineralien Atlas
    • Sátão
      • Ferreira de Aves
        • Aldeia Nova
  • Sibiu
    • Lotru-Cibin Mountains
Androne, D.A.M., Buzgar, N., and Kasper, H.U. (2005): Proceedings of the Annual Scientific Session of The Geological Society of Romania, Rosia Montana, 20-21 May 2005, 16-26.
  • Western Province
    • Ngororero
      • Gatumba
Bertossa, A. (1968) Inventaire des minéraux du Rwanda. Bulletin du Service Géologique de Rwanda: 4: 25-45.; Daltry, V.D.C. and von Knorring, O. (1998) Type-mineralogy of Rwanda with particular reference to the Buranga pegmatite. Geologica Belgica: 1: 9-15.
South Africa
  • Northern Cape
    • ZF Mgcawu
      • Kai !Garib
        • Kenhardt
Cairncross, B., Dixon, R. (1995) Cairncross, B., Dixon, R. (1995) Minerals of South Africa. Geological Society of South Africa, PO Box 44283, Linden 2104, South Africa.
  • Castile and Leon
    • Zamora
      • Villar del Buey
        • Pinilla de Fermoselle
  • New Hampshire
    • Grafton Co.
      • Groton
Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Mineralogical Record (1973) 4:103-130
  • South Dakota
    • Custer Co.
      • Custer Mining District
        • Custer
Rocks & Min.:60:117.; Am Min (1969), 54:969-972
R&M 75:3 pp 156-169
R&M 75:3 pp 156-169
        • Fourmile
Roberts, A.C., Dunn, P.J., Grice, J.D., Newbury, D.E., Roberts, W.L. (1988) The X-ray crystallography of tavorite from the Tip Top pegmatite, Custer, South Dakota. Powder Diffraction: 3: 93-95.; Campbell, T.J., Roberts, W.L. (1985) Mineral Localities in the Black Hills of South Dakota. Rocks & Minerals: 60: 109-118 (117).
        • Pringle
          • Cicero Peak
Rocks & Minerals: 75(3): 156-169.
      • Needles
R&M 75:3 pp 156-169
    • Pennington Co.
      • Keystone Mining District
Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
        • Keystone
Rocks & Minerals: 67(6): 380-388.
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © and the Hudson Institute of Mineralogy 1993-2021, except where stated. Most political location boundaries are © OpenStreetMap contributors. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us - Report a bug/vulnerability Current server date and time: January 20, 2021 12:42:32 Page generated: December 24, 2020 23:10:09
Go to top of page