Jungite Mineral Data

General Jungite Information

Chemical Formula:

Ca2Zn4Fe+++8(PO4)9(OH)9•16(H2O)

Composition:

Molecular Weight = 2,084.54 gm

Calcium 3.85 % Ca 5.38 % CaO

Zinc 12.55 % Zn 15.62 % ZnO

Iron 21.43 % Fe 30.64 % Fe₂O₃

Phosphorus 13.37 % P 30.64 % P₂O₅

Hydrogen 1.98 % H 17.72 % H₂O

Oxygen 46.82 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ca₂Zn₄Fe³⁺₈(PO₄)₉(OH)₉•16(H₂O)

IMA Status:

Approved IMA 1980

Locality:

Hagendorf Sud pegmatite, Barvaria, Germay. Link to MinDat.org Location Data.

Name Origin:

Named for Gerhard Jung, German mineral collector who found the mineral.

Name Pronunciation:

Jungite

Jungite Image

Images:

Jungite

Comments: Translucent cleavage fragment of jungite.
Location: Hagendorf, Bayern, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Jungite Crystallography

Axial Ratios:

a:b:c =0.5881:1:0.4884

Cell Dimensions:

a = 11.98, b = 20.37, c = 9.95, Z = 2; V = 2,428.12 Den(Calc)= 2.85

Crystal System:

Orthorhombic Space Group: Pcmm,Pcm2,Pc2m

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

By Intensity(I/I_o): 3.3(1), 3.37(1), 5.09(1),

Physical Properties of Jungite

Cleavage:

{010} Perfect

Color:

Dark green, Yellow, Green yellow.

Density:

2.843

Habit:

Rosette - Bundled tabular aggregates resembling rose flower petals.

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

1 - Talc

Luster:

Vitreous - Silky

Streak:

yellow

Optical Properties of Jungite

Gladstone-Dale:

CI meas= 0.067 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.069 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2316,KPDmeas= 0.2321,KC= 0.2488
Ncalc = 1.71

Optical Data:

Biaxial (-), a=1.658, b=1.658, g=1.664, bire=0.0060, 2V(Calc)=0, 2V(Meas)=60. Dispersion r < v strong.

Calculated Properties of Jungite

Electron Density:

Bulk Density (Electron Density)=2.81 gm/cc
note: Specific Gravity of Jungite =2.84 gm/cc.

Fermion Index:

Fermion Index = 0.0099678755
Boson Index = 0.9900321245

Photoelectric:

PE_Jungite= 13.53 barns/electron
U=PE_Jungite x rElectron Density= 38.10 barns/cc.

Radioactivity:

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

Jungite Classification

Dana Class:

42.13.04.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.13)Dana Type

(42.13.04)Dana Group

42.13.04.01 Jungite Ca2Zn4Fe8(PO4)9(OH)9•16(H2O) Pcmm,Pcm2,Pc2m Ortho

Strunz Class:

08.DJ.25 08 - PHOSPHATES, ARSENATES, VANADATES

08.D - Phosphates, etc

08.DJ -With large and medium-sized cations, (OH, etc.):RO4 = 1:l

08.DJ.25 Jungite Ca2Zn4Fe8(PO4)9(OH)9•16(H2O) Pcmm,Pcm2,Pc2m Ortho

Other Jungite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Jungite :
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 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

Search for Jungite using:

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

Visit our Advertisers for Jungite :

Ask about Jungite 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 Jungite Specimen Label here :

Jungite

Ca2Zn4Fe+++8(PO4)9(OH)9•16(H2O)
Dana No: 42.13.04.01 Strunz No: 08.DJ.25
Locality:

Notes:

Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.