Mineralogy Database

Berlinite Mineral Data

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General Berlinite Information

Help on Chemical  Formula: Chemical Formula: AlPO4
Help on Composition: Composition: Molecular Weight = 121.95 gm
   Aluminum    22.12 %  Al   41.80 % Al2O3
   Phosphorus  25.40 %  P    58.20 % P2O5
   Oxygen      52.48 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Al(PO4)
Help on Environment: Environment: A rare high-temperature hydrothermal or metasomatic mineral. Often found in caves after guano fires.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1868
Help on Locality: Locality: In the Vastana mine, near Nasum, Skane, and at Halsjoberg, Varmland, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Honoring Professor Nils Johan Berlin (1812-1891), pharmacologist, University of Lund, Lund, Sweden.
Help on Name Pronunciation: Name Pronunciation: Berlinite + Pronunciation Say BERLINITE
Help on Synonym: Synonym: ICSD 9461
  PDF 10-423

Berlinite 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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  Lacroixite   Berlinite

Comments: Pale olive green crystalline lacroixite with white crystalline berlinite.
Location: Rusororo Pegmatite, Gatumba, Gisenyi, Rwanda. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Berlinite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.21747
Help on Cell Dimensions: Cell Dimensions: a = 4.92, c = 10.91, Z = 3; V = 228.71 Den(Calc)= 2.66
Help on Crystal System: Crystal System: Trigonal - Trapezohedral H-M Symbol (3 2) Space Group: P 3121,P 3221
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.369(1), 4.28(0.25), 1.835(0.16),

Physical Properties of Berlinite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless, Gray, Gray pink, Light pink.
Help on Density: Density: 2.64
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Hardness: Hardness: 6.5 - Pyrite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Berlinite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.033 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.025 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1978,KPDmeas= 0.1993,KC= 0.193
Ncalc = 1.51
Help on Optical Data: Optical Data: Uniaxial (+), w=1.5235, e=1.529, bire=0.0055.

Calculated Properties of Berlinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.62 gm/cc
note: Specific Gravity of Berlinite =2.66 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0002518911
Boson Index = 0.9997481089
Help on Photoelectric: Photoelectric: PEBerlinite = 1.86 barns/electron
U=PEBerlinite x rElectron Density= 4.88 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Berlinite is Not Radioactive

Berlinite Classification

Help on  Dana Class: Dana Class: (38)Anhydrous Phosphates, etc
  (38.04)A+ XO4
  (38.04.02)Berlinite Group Berlinite AlPO4 P 3121,P 3221 3 2 Alarsite! AlAsO4 P 3121,P 3221 3 2 Rodolicoite! FePO4 R 3121 3 2
Help on  Strunz Class: Strunz Class: 08.AA.05 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AA -With small cations (some also with larger ones)
08.AA.05 Alarsite! AlAsO4 P 3121,P 3221 3 2
08.AA.05 Berlinite AlPO4 P 3121,P 3221 3 2
08.AA.05 Rodolicoite! FePO4 R 3121 3 2

Other Berlinite 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 Berlinite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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Dana No: Strunz No: 08.AA.05





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