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Trolleite

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Formula:
Al
 
4
(PO
 
4
)
 
3
(OH)
 
3
System:MonoclinicColour:Light green, colorless, ...
Hardness:5½ - 6
Name:Named after Hans Gabriel Trolle-Wachmeister (1782-1871), Swedish chemist.


Usually massive translucent light green to bluish green masses with a greasy luster. May be very blue because of mixtures with scorzalite.

Classification of Trolleite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/B.08-10
Nickel-Strunz 10th (pending) edition ID:8.BB.45

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
Dana 8th edition ID:41.11.1.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : Miscellaneous
Hey's CIM Ref.:19.7.3

19 : Phosphates
7 : Phosphates of Al alone
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Type Occurrence of Trolleite

Type Locality:Västanå Iron Mine (Westanå Mine), Näsum, Bromölla, Skåne, Sweden
Year of Discovery:1868
Geological Setting of type material:Peraluminous high pressure rocks.
Associated Minerals at type locality:
PyrophyllitePyrophylliteKyaniteBerliniteAugelite
Attakolite

Physical Properties of Trolleite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent, Translucent
Colour:Light green, colorless, bluish green, (dark blue when included)
Comment:Scorzalite-lazulite may be admixed.
Streak:White
Hardness (Mohs):5½ - 6
Tenacity:Brittle
Cleavage:Poor/Indistinct
Two directions at an angle of 110°52'.
Fracture:Irregular/Uneven, Sub-Conchoidal
Density (measured):3.10 g/cm3
Density (calculated):3.08 g/cm3

Crystallography of Trolleite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/b
Cell Parameters:a = 18.894Å, b = 7.161Å, c = 7.162Å
β = 99.99°
Ratio:a:b:c = 2.638 : 1 : 1
Unit Cell Volume:V 954.33 ų (Calculated from Unit Cell)
Z:4
Morphology:Massive, lamellar.
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Horizontal Axis: ° to ° Vertical Axis: % Source Data: Filtered Data:
Data courtesy of RRUFF project at University of Arizona, used with permission.
X-Ray Powder Diffraction:
d-spacingIntensity
6.67 (40)
3.34 (40)
3.21 (100)
3.10 (90)
3.08 (50)
2.52 (50)
1.983 (40)
1.547 (30)
Comments:26-1009

Optical Data of Trolleite

Type:Biaxial (-)
RI values: nα = 1.619 nβ = 1.639 nγ = 1.643
2V:Measured: 49° , Calculated: 46°
Birefringence:0.024
Maximum Birefringence:δ = 0.024

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r < v strong

Chemical Properties of Trolleite

Formula:
Al
 
4
(PO
 
4
)
 
3
(OH)
 
3
Simplified for copy/paste:Al4(PO4)3(OH)3
Essential elements:Al, H, O, P
All elements listed in formula:Al, H, O, P

Relationship of Trolleite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.BB.05Amblygonite
LiAl(PO
 
4
)F
8.BB.05Montebrasite
LiAl(PO
 
4
)(OH)
8.BB.05Tavorite
LiFe
3+
 
(PO
 
4
)(OH)
8.BB.10Triplite
(Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)(F,OH)
8.BB.10Zwieselite
(Fe
2+
 
,Mn
2+
 
)
 
2
(PO
 
4
)F
8.BB.15Sarkinite
Mn
2+
2
(AsO
 
4
)(OH)
8.BB.15Triploidite
(Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)(OH)
8.BB.15Wagnerite
(Mg,Fe
2+
 
)
 
2
(PO
 
4
)F
8.BB.15Wolfeite
(Fe
2+
 
,Mn
2+
 
)
 
2
(PO
 
4
)(OH)
8.BB.15Stanĕkite
(Mn
2+
 
,Fe
2+
 
,Mg)Fe
3+
 
(PO
 
4
)O
8.BB.15Joosteite
Mn
2+
 
(Mn
3+
 
,Fe
3+
 
)(PO
 
4
)O
8.BB.15Hydroxylwagnerite
Mg
 
2
(PO
 
4
)(OH)
8.BB.20Holtedahlite
Mg
 
2
(PO
 
4
)(OH)
8.BB.20Satterlyite
(Fe
2+
 
,Mg,Fe
3+
 
)
 
2
(PO
 
4
)(OH,O)
8.BB.25Althausite
Mg
 
4
(PO
 
4
)
 
2
(OH,O)(F,☐)
8.BB.30Adamite
Zn
 
2
(AsO
 
4
)(OH)
8.BB.30Eveite
Mn
2+
2
(AsO
 
4
)(OH)
8.BB.30Libethenite
Cu
 
2
(PO
 
4
)(OH)
8.BB.30Olivenite
Cu
 
2
(AsO
 
4
)(OH)
8.BB.30Zincolibethenite
CuZn(PO
 
4
)(OH)
8.BB.30Zincolivenite
CuZn(AsO
 
4
)(OH)
8.BB.30Auriacusite
Fe
3+
 
Cu
2+
 
(AsO
 
4
)O
8.BB.35Paradamite
Zn
 
2
(AsO
 
4
)(OH)
8.BB.35Tarbuttite
Zn
 
2
(PO
 
4
)(OH)
8.BB.40Barbosalite
Fe
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.40Hentschelite
CuFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.40Lazulite
(Mg,Fe
2+
 
)Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.40Scorzalite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.40Wilhelmkleinite
ZnFe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
8.BB.50Namibite
Cu(BiO)
 
2
(VO
 
4
)(OH)
8.BB.55Phosphoellenbergerite
Mg
 
14
(PO
 
4
)
 
6
(HPO
 
4
,CO
 
3
)
 
2
(OH)
 
6
8.BB.60Urusovite
CuAl(AsO
 
4
)O
8.BB.65Theoparacelsite
Cu
 
3
(As
 
2
O
 
7
)(OH)
 
2
8.BB.70Turanite
Cu
 
5
(VO
 
4
)
 
2
(OH)
 
4
8.BB.75Stoiberite
Cu
 
5
(VO
 
4
)
 
2
O
 
2
8.BB.80Fingerite
Cu
 
11
(VO
 
4
)
 
6
O
 
2
8.BB.85Averievite
Cu
 
6
(VO
 
4
)
 
2
O
 
2
Cl
 
2
8.BB.90Lipscombite
(Fe
2+
 
,Mn
2+
 
)Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.90Richellite
CaFe
3+
2
(PO
 
4
)
 
2
(OH,F)
 
2
8.BB.90Zinclipscombite
ZnFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
Related Minerals - Hey's Index Grouping:

- +
19.7.1Berlinite
AlPO
 
4
19.7.2Augelite
Al
 
2
(PO
 
4
)(OH)
 
3
19.7.4Senegalite
Al
 
2
(PO
 
4
)(OH)(OH)
 
2
· H
 
2
O
19.7.5Variscite
AlPO
 
4
· 2H
 
2
O
19.7.6Metavariscite
AlPO
 
4
· 2H
 
2
O
19.7.7Bolivarite
Al
 
2
(PO
 
4
)(OH)
 
3
· 4-5H
 
2
O
19.7.8Wavellite
Al
 
3
(PO
 
4
)
 
2
(OH,F)
 
3
· 5H
 
2
O
19.7.9Evansite
Al
 
3
(PO
 
4
)(OH)
 
6
· 6H
 
2
O
19.7.10Vantasselite
Al
 
4
(PO
 
4
)
 
3
(OH)
 
3
· 9H
 
2
O
19.7.11Kingite
Al
 
3
(PO
 
4
)
 
2
F
 
2
(OH) · 7H
 
2
O
19.7.12Vashegyite
Al
 
11
(PO
 
4
)
 
9
(OH)
 
6
· 38H
 
2
O

Other Names for Trolleite

Other Languages:
German:Trolleit
Russian:Троллеит
Simplified Chinese:羟磷铝石
Spanish:Trolleita
Traditional Chinese:羥磷鋁石

Other Information

Fluorescence in UV light:Not Fluorescent
Other Information:Virtually untouched by acids.
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 Trolleite

Reference List:

- +
Blomstrand, C. W. (1868): Om Vestanå Mineralier. Öfversigt af Kongliga Vetenskaps-Akademiens Förhandlingar 25 (3), 197-212

Des Cloizeaux, A. (1893) Manuel de minéralogie. 2 volumes and Atlas, Paris. volume 2, 2 Fasc., pp 209-544: 453.

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.: 911.

American Mineralogist (1965): 50: 267.

Moore, Paulus B. & T. Araki (1974), Trolleite, Al4(OH)3[PO4]3: a very dense structure with octahedral face-sharing dimmers: American Mineralogist: 59: 974-984.

American Mineralogist (1979): 64: 1175.

Internet Links for Trolleite

Search Engines:
  • Look for Trolleite on Google
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  • External Links:
  • Look for Trolleite on Webmineral
  • Look for Trolleite on Athena Mineralogy
  • Look for Trolleite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Trolleite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
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  • SpiriferMinerals.com - high quality low prices
  • Trolleite specimens for sale - minfind.com
  • Fabre Minerals - search for Trolleite specimens
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  • Localities for Trolleite

    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • Queensland
      • North Burnett Region
    Duggan, et al., Can. Min. 28,125-131(1990)
    Japan
     
    • Honshu Island
      • Chugoku Region
        • Yamaguchi Prefecture
    Matsubara, S. and Kato, A. (1998) Memoirs of the National Science Museum (Tokyo), 30, 167-183.; Mineralogical Journal Vol. 21 (1999) , No. 4 pp 145-150
    Madagascar
     
    • Fianarantsoa Province
      • Amoron'i Mania Region
        • Ambatofinandrahana District
          • Itremo Commune
            • Itremo massif
    Ackermand et al. (2006): Lazulite-bearing metaquartzite of the Itremo Group (Central Madagascar); Scientific significance and economic importance. in Proceedings of the Malagasy-German Research Cooperation in Life and Earth sciences, 5-18
    Ackermand et al.(2006): "Lazulite-bearing metaquartzite of the Itremo Group (Central Madagascar); Scientific significance and economic importance" in Proceedings of the Malagasy-German Research Cooperation in Life and Earth sciences, 5-18
    Russia
     
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Buriatia Republic (Buryatia)
          • Dzhida Basin
    [AmMin 86:200]; Izbrodin, I.A., Ripp, G.S., and Doroshkevich, A.G. (2010): Mineralogy and Petrology (in print).
    Rwanda
     
    • Western Province
      • Gatumba District
    Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV; Daltry, V.D.C. and O. von Knorring (1998) Type-Mineralogy of Rwanda with Particular Reference to the Buranga Pegmatite. Geologica Belgica 1:1-9
    F. Hatert, P. Lefèvre, A.M. Fransolet, M.R. Spirlet, F. Fontan, P. Keller : "Ferrorosemaryite, []NaFe2+Fe3+Al(PO4)3, a new phosphate mineral from the Rubindi pegmatite, Rwanda", Bull. Liaison S.F.M.C., Vol. 16, 2004, pp 44-45.
    Sweden
     
    • Skåne
      • Bromölla
        • Näsum
    Blomstrand, C. W. (1868): Om Vestanå Mineralier. Öfversigt af Kongliga Vetenskaps-Akademiens Förhandlingar 25 (3), 197-212; 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: 911.
    • Värmland
      • Torsby
    Grensman, F. (1989): Hålsjøberg- En fyndortsbeskrivning. NAGS-nytt 16(3), 24-27
    • Västergötland
      • Tidaholm
    USA
     
    • California
      • Mono Co.
        • White Mts
          • White Mountain Peak
    Lemmon, Dwight Moulton (1935), Augelite from Mono County California American Mineralogist: 20: 664-668; Wise, W. S. (1977): Mineralogy of the Champion mine White Mountains, California. Mineralogical Record: 8: 478-486; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 304.
    • Colorado
      • Larimer Co.
        • Glendevey
    Minerals of Colorado (1997) Eckel, E. B.
    • North Carolina
    Milton,Daniel J.,(1986) Chloritoid -Sillimanite Assemblage from North Carolina : American Mineralogist,Vol.71,pg.891-894,1986
    • Virginia
      • Buckingham Co.
        • Farmville District
          • Sprouses Corner
    Giannini, W.F., Penick, D.A., Jr. & Fordham, O.M., Jr., Virginia Minerals, 32(1),11(1986)
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