Berlinite Mineral Data (original) (raw)

General Berlinite Information

Chemical Formula:

AlPO4

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

Empirical Formula:

Al(PO4)

Environment:

A rare high-temperature hydrothermal or metasomatic mineral. Often found in caves after guano fires.

IMA Status:

Valid Species (Pre-IMA) 1868

Locality:

In the Vastana mine, near Nasum, Skane, and at Halsjoberg, Varmland, Sweden. Link to MinDat.org Location Data.

Name Origin:

Honoring Professor Nils Johan Berlin (1812-1891), pharmacologist, University of Lund, Lund, Sweden.

Name Pronunciation:

Berlinite + Pronunciation

Synonym:

ICSD 9461

PDF 10-423

Berlinite Image

Images:

Berlinite Crystallography

Axial Ratios:

a:c = 1:2.21747

Cell Dimensions:

a = 4.92, c = 10.91, Z = 3; V = 228.71 Den(Calc)= 2.66

Crystal System:

Trigonal - TrapezohedralH-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),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

| | Muraoka Y , Kihara K , Physics and Chemistry of Minerals , 24 (1997) p.243-253, The temperature dependence of the crystal structure of berlinite,, a quartz-type form of AlPO4, Sample: T = 25 C View Additional jPOWD Structure files for Berlinite [1] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [2] [20] [3] [4] [5] [6] [7] [8] [9] | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Berlinite

Cleavage:

None

Color:

Colorless, Gray, Gray pink, Light pink.

Density:

2.64

Diaphaneity:

Transparent to Translucent

Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Hardness:

6.5 - Pyrite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Berlinite

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

Optical Data:

Uniaxial (+), w=1.5235, e=1.529, bire=0.0055.

Calculated Properties of Berlinite

Electron Density:

Bulk Density (Electron Density)=2.62 gm/cc
note: Specific Gravity of Berlinite =2.66 gm/cc.

Fermion Index:

Fermion Index = 0.0002518911
Boson Index = 0.9997481089

Photoelectric:

PEBerlinite = 1.86 barns/electron
U=PEBerlinite x rElectron Density= 4.88 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Berlinite is Not Radioactive

Berlinite Classification

Dana Class:

38.04.02.01 (38)Anhydrous Phosphates, etc

(38.04)A+ XO4

(38.04.02)Berlinite Group

38.04.02.01 Berlinite AlPO4 P 3121,P 3221 3 2

38.04.02.02 Alarsite! AlAsO4 P 3121,P 3221 3 2

38.04.02.03 Rodolicoite! FePO4 R 3121 3 2

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

References:

NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

Search for Berlinite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Berlinite :

A Bijoux Google Search for Berlinite
Adam's Minerals Google Search for Berlinite
Cape Minerals Google Search for Berlinite
Dakota Matrix Minerals Google Search for Berlinite
Excalibur Mineral Corp. Google Search for Berlinite
Exceptional Minerals Google Search for Berlinite
John Betts Fine Minerals Search for Berlinite
McDougall Minerals Google Search for Berlinite
Mineral News Website Link
Rock and Mineral Shows Google Search for Berlinite
Weinrich Minerals, Inc. Google Search for Berlinite

Ask about Berlinite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espa�ol

Print or Cut-and-Paste your Berlinite Specimen Label here :

Berlinite

AlPO4
Dana No: 38.04.02.01 Strunz No: 08.AA.05
Locality:

Notes: