General Jungite Information Chemical Formula: |
Ca2Zn4Fe+++8(PO4)9(OH)9•16(H2O) |
Composition: |
Molecular Weight = 2,084.54 gm |
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Calcium 3.85 % Ca 5.38 % CaO |
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Zinc 12.55 % Zn 15.62 % ZnO |
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Iron 21.43 % Fe 30.64 % Fe2O3 |
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Phosphorus 13.37 % P 30.64 % P2O5 |
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Hydrogen 1.98 % H 17.72 % H2O |
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Oxygen 46.82 % O |
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______ ______ |
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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:
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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: |
OrthorhombicSpace Group: Pcmm,Pcm2,Pc2m |
X Ray Diffraction: |
By Intensity(I/Io): 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: |
PEJungite = 13.53 barns/electron |
U=PEJungite 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 |
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(42.13)Dana Type |
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(42.13.04)Dana Group |
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Strunz Class: |
08.DJ.25 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.D - Phosphates, etc |
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08.DJ -With large and medium-sized cations, (OH, etc.):RO4 = 1:l |
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| 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: Visit our Advertisers for Jungite : A Bijoux Google Search for JungiteAdam's Minerals Google Search for Jungite Cape Minerals Google Search for Jungite Dakota Matrix Minerals Google Search for Jungite Excalibur Mineral Corp. Google Search for Jungite Exceptional Minerals Google Search for Jungite John Betts Fine Minerals Search for Jungite McDougall Minerals Google Search for Jungite Mineral News Website Link Rock and Mineral Shows Google Search for Jungite Weinrich Minerals, Inc. Google Search for Jungite Ask about Jungite here : Print or Cut-and-Paste your Jungite Specimen Label here :
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