Mineralogy Database

Trolleite Mineral Data

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General Trolleite Information

Help on Chemical  Formula: Chemical Formula: Al4(PO4)3(OH)3
Help on Composition: Composition: Molecular Weight = 443.86 gm
   Aluminum    24.32 %  Al   45.94 % Al2O3
   Phosphorus  20.93 %  P    47.97 % P2O5
   Hydrogen     0.68 %  H     6.09 % H2O
   Oxygen      54.07 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Al4(PO4)3(OH)3
Help on Environment: Environment: Amphibolite-grade metamorphic rocks.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1868
Help on Locality: Locality: Vastana mine, near Nasum, Skane, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Hans Gabriel Trolle-Wachtmeister (1782-1871), Swedish chemist.
Help on Name Pronunciation: Name Pronunciation: Trolleite + Pronunciation Say TROLLEITE
Help on Synonym: Synonym: ICSD 6193
  PDF 42-1352

Trolleite Image

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  Berlinite   Trolleite

Comments: Pinkish crystalline berlinite with blue trolleite.
Location: Ijzer Mine, Vestana, Christiansted, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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  Trolleite   Lazulite

Comments: Pale blue trolleite with darker blue lazulite.
Location: Champion Mine, White Mountains, Mono County, California. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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  Viseite   Trolleite

Comments: Chalky white massive viseite with bluish trolleite.
Location: Champion Sillimanite Mine, near Laws, Mono County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Trolleite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.6384:1:1.0001
Help on Cell Dimensions: Cell Dimensions: a = 18.894, b = 7.161, c = 7.162, Z = 4; beta = 99.99° V = 954.33 Den(Calc)= 3.09
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: I2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.208(1), 3.095(0.9), 3.075(0.5),

Physical Properties of Trolleite

Help on Cleavage: Cleavage: {???} Indistinct
Help on Color: Color: Light blue, Light green.
Help on Density: Density: 3.09
Help on Fracture: Fracture: Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments.
Help on Hardness: Hardness: 5.5-6 - Knife Blade-Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Trolleite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.007 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.007 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2051,KPDmeas= 0.2051,KC= 0.2036
Ncalc = 1.63
Help on Optical Data: Optical Data: Biaxial (-), a=1.619, b=1.639, g=1.643, bire=0.0240, 2V(Calc)=46, 2V(Meas)=49.

Calculated Properties of Trolleite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.06 gm/cc
note: Specific Gravity of Trolleite =3.09 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0002605521
Boson Index = 0.9997394479
Help on Photoelectric: Photoelectric: PETrolleite = 1.72 barns/electron
U=PETrolleite x rElectron Density= 5.28 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Trolleite is Not Radioactive

Trolleite Classification

Help on  Dana Class: Dana Class: (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.11)with miscellaneous formulae
  (41.11.01)Dana Group Trolleite Al4(PO4)3(OH)3 I2/c 2/m
Help on  Strunz Class: Strunz Class: 08.BB.45 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BB -With only medium-sized cations, (OH, etc.):RO4 � 1:1
08.BB.45 Trolleite Al4(PO4)3(OH)3 I2/c 2/m

Other Trolleite Information

Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Trolleite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 08.BB.45





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