Jungite
A valid IMA mineral species
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About Jungite
Collecting at Bellerberg
Formula:
Ca2Zn4Fe3+8(PO4)9(OH)9 · 16H2O
Colour:
Bright yellow to greenish-yellow (Fleischer and Cabri 1981)
Lustre:
Vitreous, Silky
Hardness:
1
Specific Gravity:
2.843
Crystal System:
Orthorhombic
Name:
Named in 1980 by P.B. Moore and Jun Ito in honor of Dr. Gerhard Jung (19 March 1925 - 14 February 2018, Albbruck, Germany), mineral collector from Albbruck, Germany who first found the mineral.
This page provides mineralogical data about Jungite.
Unique Identifiers
Mindat ID:
2122
Long-form identifier:
mindat:1:1:2122:3
GUID
(UUID V4):
(UUID V4):
23e0691a-1867-4282-91f4-ea054df5e1cb
IMA Classification of Jungite
Approved
Approval year:
1977
First published:
1980
Classification of Jungite
8.DJ.25
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
J : With large and medium-sized cations, (OH, etc.):RO4 = 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
J : With large and medium-sized cations, (OH, etc.):RO4 = 1:1
42.13.4.1
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
13 : Miscellaneous
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
13 : Miscellaneous
19.6.12
19 : Phosphates
6 : Phosphates of Zn
19 : Phosphates
6 : Phosphates of Zn
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Jun | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Jungite
Vitreous, Silky
Transparency:
Translucent
Comment:
Silky in aggregates
Colour:
Bright yellow to greenish-yellow (Fleischer and Cabri 1981)
Streak:
Yellow
Hardness:
1 on Mohs scale
Cleavage:
Perfect
{010}
{010}
Density:
2.843 g/cm3 (Measured) 2.849 g/cm3 (Calculated)
Optical Data of Jungite
Type:
Biaxial (-)
RI values:
nα = 1.658 nβ = 1.658 nγ = 1.664
2V:
Measured: 60°
Max Birefringence:
δ = 0.006
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v strong
Optical Extinction:
Parallel. X = b; Y = a; Z = c.
Chemistry of Jungite
Mindat Formula:
Ca2Zn4Fe3+8(PO4)9(OH)9 · 16H2O
Crystallography of Jungite
Crystal System:
Orthorhombic
Cell Parameters:
a = 11.98(8) Å, b = 20.37(10) Å, c = 9.95(8) Å
Ratio:
a:b:c = 0.588 : 1 : 0.488
Unit Cell V:
2,428.12 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Flakes or as rosettes of thin, sometimes bent, tabular crystals. Forms include {010}, {201}, and {100}.
Comment:
Point Group: 2/m 2/m 2/m or mm2. ; Space Group: Pcmm, Pcm21, or Pc2m.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 9.96 Å | (100b) |
| 5.09 Å | (50) |
| 3.37 Å | (50) |
| 3.30 Å | (50) |
| 3.79 Å | (40) |
| 4.91 Å | (30) |
| 3.08 Å | (30) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23) |
Type Occurrence of Jungite
General Appearance of Type Material:
Rosettes up to 1 cm in diameter of very thin, tabular, bent crystals.
Place of Conservation of Type Material:
No defined type material.
Geological Setting of Type Material:
Late stage mineral in a complex granite pegmatite.
Associated Minerals at Type Locality:
Reference:
Moore, P.B., Ito, J. (1980) Jungit und Matulait: Zwei neue tafelige Phosphat-Mineralien. Aufschluss: 31: 55-61.
Synonyms of Jungite
Other Language Names for Jungite
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
| 8.DJ.05 | Johnwalkite | K(Mn2+,Fe2+,Fe3+)2(Nb5+,Ta5+)(PO4)2O2 · 2(H2O,OH) |
| 8.DJ.05 | Olmsteadite | KFe2+2(Nb5+,Ta5+)(PO4)2O2 · 2H2O |
| 8.DJ.10 | Gatumbaite | CaAl2(PO4)2(OH)2 · H2O |
| 8.DJ.15 | Camgasite | CaMg(AsO4)(OH) · 5H2O |
| 8.DJ.20 | Phosphofibrite | (H2O,K)3.5Fe8(PO4)6(OH)7 · 5H2O |
| 8.DJ.20 | Meurigite-K | KFe3+8(PO4)6(OH)7 · 6.5H2O |
| 8.DJ.20 | Meurigite-Na | NaFe3+8(PO4)6(OH)7 · 6.5H2O |
| 8.DJ.30 | Wycheproofite | NaAlZr(PO4)2(OH) · H2O |
| 8.DJ.35 | Ercitite | Na2Mn3+2(PO4)2(OH)2 · 4H2O |
| 8.DJ.40 | Mrázekite | Bi2Cu3(PO4)2O2(OH)2 · H2O |
| 8.DJ.45 | Attikaite | Ca3Cu2Al2(AsO4)4(OH)4 · 2H2O |
| 8.DJ.50 | Mengeite | Ba(Mg,Mn2+)Mn3+4(PO4)4(OH)4 · 4H2O |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Jungite
mindat.org URL:
https://www.mindat.org/min-2122.html
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Please feel free to link to this page.
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References for Jungite
Localities for Jungite
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Germany (TL) | |
| Moore et al. (1980) +1 other reference |
| Bender et al. (1994) |
USA | |
Quick NavTopAbout JungiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany