Jorgensenite Mineral Data

Jorgensenite Mineral Data +

General Jorgensenite Information

Chemical Formula:

Na2(Sr,Ba)14Na2Al12F64(OH,F)

Composition:

Molecular Weight = 3,049.79 gm

Barium 15.76 % Ba 17.60 % BaO

Sodium 3.02 % Na 4.06 % Na₂O

Strontium 30.17 % Sr 35.67 % SrO

Aluminum 10.62 % Al 20.06 % Al₂O₃

Hydrogen 0.02 % H 0.22 % H₂O

Oxygen 0.39 % O

Fluorine 40.02 % F 40.02 % F

- % F -16.85 % -O=F₂

______ ______

100.00 % 100.79 % = TOTAL OXIDE

Empirical Formula:

Na₄14(Sr_0.75)14(Ba_0.25)Al₁₂F_64.25(OH)_0.75

IMA Status:

Approved IMA 1995 (Dana # Added)

Locality:

Ivigtut, Greenland Link to MinDat.org Location Data.

Synonym:

IMA1995-046

Search for Jorgensenite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Jorgensenite Crystallography

Axial Ratios:

a:b:c =1.4625:1:0.6636

Cell Dimensions:

a = 16.046, b = 10.971, c = 7.281, Z = 1; beta = 101.734° V = 1,254.97 Den(Calc)= 4.04

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.193(1), 3.453(1), 3.643(0.9),

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

Hawthorne F C , Burns P C , The Canadian Mineralogist , 35 (1997) p.1509-1513, The crystal structure of jorgensenite

Physical Properties of Jorgensenite

Color:

Colorless, White.

Density:

3.89

Diaphaniety:

Translucent

Hardness:

3.5-4 - Copper Penny-Fluorite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Jorgensenite

Gladstone-Dale:

CI meas= 0.209 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.239 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1089,KPDmeas= 0.1131,KC= 0.1431

Optical Data:

Biaxial (-), a=1.436, b=1.442, g=1.442, bire=0.0060

Calculated Properties of Jorgensenite

Electron Density:

r_electron=3.52 gm/cc
note: r_Jorgensenite=3.89 gm/cc.

Fermion Index

Fermion Index = 0.0492
Boson Index = 0.9508

Photoelectric:

PE_Jorgensenite= 105.59 barns/electron
U=PE_Jorgensenite x r_electron= 371.71 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Jorgensenite is Not Radioactive

Jorgensenite Classification

Dana Class:

11.6.10.3 (11)Halide Complexes; Alumino-fluorides

(11.6)with miscellaneous formulae

(11.6.10)Dana Group

11.6.10.1 Jarlite Na(Sr,Na,[])7(Mg,[])Al6F32(OH,H2O)2 C 2/m 2/m

11.6.10.2 Calcjarlite Na(Ca,Sr)3Al3(F,OH)16 C 2/m 2/m

11.6.10.3 Jorgensenite ! Na2(Sr,Ba)14Na2Al12F64(OH,F) C 2/m 2/m

Strunz Class:

III/B.03-48 III - Halogenides

III/B - Double halogenides without water, with [BF4]1-,[SiF6]2- and [AlF6]3-

III/B.03 - Kryolithionite - Calcjarlite series

III/B.03-10 Cryolithionite Na3Li3Al2F12 I a3d 4/m 3 2/m

III/B.03-20 Colquiriite CaLiAlF6 P 3c 3 2/m

III/B.03-25 Simmonsite! Na2LiAlF6 P 2₁/n 2/m

III/B.03-30 Cryolite Na3AlF6 P 2₁/n 2/m

III/B.03-40 Elpasolite K2NaAlF6 F m3m 4/m 3 2/m

III/B.03-45 Bogvadite Na2SrBa2Al4F20 Pnmn,Pn2n Ortho

III/B.03-48 Jorgensenite Na2(Sr,Ba)14Na2Al12F64(OH,F) C 2/m 2/m

III/B.03-50 Jarlite Na(Sr,Na,[])7(Mg,[])Al6F32(OH,H2O)2 C 2/m 2/m

III/B.03-60 Calcjarlite Na(Ca,Sr)3Al3(F,OH)16 C 2/m 2/m

Other Jorgensenite Information

References:

PHYS. PROP.(Am.Min.,Vol.82,p1261,1997) OPTIC PROP.(Am.Min.,Vol.82,p1261,1997)

See Also:

Links to other databases for Jorgensenite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas 11 - WWW-MINCRYST

Search for Jorgensenite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Jorgensenite :
AA Mineral Specimens
A-Rocks Auction
Adams Minerals
B and L Minerals
Dakota Matrix
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Minernet.it
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Jorgensenite Mineral Data :

Ask about Jorgensenite 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 Español

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

Jorgensenite

Na2(Sr,Ba)14Na2Al12F64(OH,F)
Dana No: 11.6.10.3 Strunz No: III/B.03-48
Locality:

Notes: