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Yingjiangite

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Tirpersdorf, Oelsnitz, Vogtland, Saxony, Germany
© JGroebner

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Formula:
K
 
2
Ca(UO
 
2
)
 
7
(PO
 
4
)
 
4
(OH)
 
6
 · 6H
 
2
O
System:OrthorhombicColour:Yellow, golden-yellow
Hardness:3 - 4
Name:Named after its discovery locality in Yingjiang County, Yunnan Province, China.


Phosphuranylite Group.

Easily confused with Phosphuranylite. Possibly identical to phosphuranylite

Classification of Yingjiangite

IMA status:Approved 1989
Explanation of status:Valid, but easily confused with phosphuranylite.
Strunz 8th edition ID:7/E.07-25
Nickel-Strunz 10th (pending) edition ID:8.EC.10

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
C : UO2:RO4 = 3:2
Dana 8th edition ID:42.6.12.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq·xH2O
Hey's CIM Ref.:19.11.7

19 : Phosphates
11 : Phosphates of U
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Type Occurrence of Yingjiangite

Type Locality:Uranium occurrence, Tongbiguan, Yingjiang Co., Dehong Autonomous Prefecture, Yunnan Province, China
General Appearance of Type Material:granular massive
Place of Conservation of Type Material:National Geological Museum, Beijing, China
Geological Setting of type material:oxidized zone of a uranium deposit

Physical Properties of Yingjiangite

Lustre:Sub-Adamantine, Resinous
Diaphaneity (Transparency):Transparent, Translucent
Colour:Yellow, golden-yellow
Hardness (Mohs):3 - 4
Hardness Data:Measured
Density (measured):4.15 g/cm3
Density (calculated):4.17 g/cm3

Crystallography of Yingjiangite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:a = 15.707Å, b = 17.424Å, c = 13.692Å
Ratio:a:b:c = 0.901 : 1 : 0.786
Unit Cell Volume:V 3,747.21 ų (Calculated from Unit Cell)
Z:4
Comment:Space group reported as C222[sub]1[/sub] (by analogy with phosphuranylite; cell: a = 13.73(1), b = 15.99(1), c = 17.33(2) A) and as Bmmb (cell data given on Mindat refer to this space group). The crystal structure has not been solved yet.
X-Ray Powder Diffraction:
d-spacingIntensity
8.03 (100)
5.90 (40)
3.99 (90)
3.88 (40)
3.17 (70)
2.886 (60)

Optical Data of Yingjiangite

Type:Biaxial (-)
RI values: nα = 1.666 - 1.669 nβ = 1.692 - 1.703 nγ = 1.707 - 1.710
2V:Measured: 36° to 38°, Calculated: 36°
Maximum Birefringence:δ = 0.041

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:r > v or r < v
Comments:X = almost colorless
Y = pale yellow
Z = yellow
Orientation: Length-slow

Chemical Properties of Yingjiangite

Formula:
K
 
2
Ca(UO
 
2
)
 
7
(PO
 
4
)
 
4
(OH)
 
6
 · 6H
 
2
O
Essential elements:Ca, H, K, O, P, U
All elements listed in formula:Ca, H, K, O, P, U
Common Impurities:Na,Mg,Mn,Fe,Ti,Si

Relationship of Yingjiangite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.EC.05Françoisite-(Nd)
(Nd,Ce,Sm)(UO
 
2
)
 
3
(PO
 
4
)
 
2
O(OH) · 6H
 
2
O
8.EC.05Phuralumite
Al
 
2
(UO
 
2
)
 
3
(PO
 
4
)
 
3
(OH)
 
2
 · 13H
 
2
O
8.EC.05Upalite
Al(UO
 
2
)
 
3
(PO
 
4
)
 
2
O(OH) · 7H
 
2
O
8.EC.05Françoisite-(Ce)
(Ce,Nd,Ca)(UO
 
2
)
 
3
(PO
 
4
)
 
2
O(OH) · 6H
 
2
O
8.EC.10Arsenuranylite
Ca(UO
 
2
)
 
4
(AsO
 
4
)
 
2
(OH)
 
4
 · 6H
 
2
O
8.EC.10Dewindtite
Pb(UO
 
2
)
 
3
(PO
 
4
)
 
2
(OH)
 
2
 · 3H
 
2
O
8.EC.10Kivuite
(Th,Ca,Pb)(UO
 
2
)
 
4
(HPO
 
4
)
 
2
(OH)
 
8
 · 7H
 
2
O
8.EC.10Phosphuranylite
(H
 
3
O)
 
3
KCa(UO
 
2
)
 
7
(PO
 
4
)
 
4
O
 
4
 · 8H
 
2
O
8.EC.10Renardite
8.EC.15Dumontite
Pb
 
2
(UO
 
2
)
 
3
(PO
 
4
)
 
2
(OH)
 
4
 · 3H
 
2
O
8.EC.15Hügelite
Pb
 
2
(UO
 
2
)
 
3
(AsO
 
4
)
 
2
O
 
2
 · 5H
 
2
O
8.EC.20Metavanmeersscheite
U
6+
 
(UO
 
2
)
 
3
(PO
 
4
)
 
2
(OH)
 
6
 · 2H
 
2
O
8.EC.20Vanmeersscheite
U
6+
 
(UO
 
2
)
 
3
(PO
 
4
)
 
2
(OH)
 
6
 · 4H
 
2
O
8.EC.20Arsenovanmeersscheite
U
4+
 
(UO
 
2
)
 
3
(AsO
 
4
)
 
2
(OH)
 
2
 · 4H
 
2
O
8.EC.25Althupite
AlTh(UO
 
2
)
 
7
(PO
 
4
)
 
4
(OH)
 
5
O
 
2
 · 15H
 
2
O
8.EC.30Mundite
Al(UO
 
2
)
 
3
(PO
 
4
)
 
2
(OH)
 
3
 · 5.5H
 
2
O
8.EC.35Phurcalite
Ca
 
2
(UO
 
2
)
 
3
(PO
 
4
)
 
2
O · 7H
 
2
O
8.EC.40Bergenite
Ca
 
2
Ba
 
4
(UO
 
2
)
 
9
(PO
 
4
)
 
6
O
 
6
 · 16H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
19.11.1Lermontovite
U(PO
 
4
)(OH) · H
 
2
O
19.11.2Metavanmeersscheite
U
6+
 
(UO
 
2
)
 
3
(PO
 
4
)
 
2
(OH)
 
6
 · 2H
 
2
O
19.11.3Vanmeersscheite
U
6+
 
(UO
 
2
)
 
3
(PO
 
4
)
 
2
(OH)
 
6
 · 4H
 
2
O
19.11.4Chernikovite
(H
 
3
O)
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 6H
 
2
O
19.11.5Vyacheslavite
U(PO
 
4
)(OH) · nH
 
2
O
19.11.6Metanatroautunite
Na(UO
 
2
)(PO
 
4
) · 2-3H
 
2
O
19.11.8Meta-ankoleite
K
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 6H
 
2
O
19.11.9Uramphite
(NH
 
4
)
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 6H
 
2
O
19.11.10Torbernite
Cu(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 12H
 
2
O
19.11.11Metatorbernite
Cu(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 8H
 
2
O
19.11.12Saléeite
Mg(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 10H
 
2
O
19.11.13Ningyoite
CaU(PO
 
4
)
 
2
 · 1-2H
 
2
O
19.11.14Meta-autunite
Ca(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 6-8H
 
2
O
19.11.15Autunite
Ca(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 11H
 
2
O
19.11.16Pseudo-autunite
(H
 
3
O)
 
4
Ca
 
2
(UO
 
2
)
 
2
(PO
 
4
)
 
4
 · 5H
 
2
O
19.11.17Phurcalite
Ca
 
2
(UO
 
2
)
 
3
(PO
 
4
)
 
2
O · 7H
 
2
O
19.11.18Phosphuranylite
(H
 
3
O)
 
3
KCa(UO
 
2
)
 
7
(PO
 
4
)
 
4
O
 
4
 · 8H
 
2
O
19.11.19Ulrichite
CaCu(UO
 
2
)(PO
 
4
)
 
2
 · 4H
 
2
O
19.11.20Bergenite
Ca
 
2
Ba
 
4
(UO
 
2
)
 
9
(PO
 
4
)
 
6
O
 
6
 · 16H
 
2
O
19.11.21Metauranocircite
Ba(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 7H
 
2
O
19.11.22Uranocircite
Ba(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 10H
 
2
O
19.11.23Ranunculite
HAl(UO
 
2
)(PO
 
4
)(OH)
 
3
 · 4H
 
2
O
19.11.24Triangulite
Al
 
3
(UO
 
2
)
 
4
(PO
 
4
)
 
4
(OH)
 
5
 · 5H
 
2
O
19.11.25Mundite
Al(UO
 
2
)
 
3
(PO
 
4
)
 
2
(OH)
 
3
 · 5.5H
 
2
O
19.11.26Upalite
Al(UO
 
2
)
 
3
(PO
 
4
)
 
2
O(OH) · 7H
 
2
O
19.11.27Furongite
Al
 
13
(UO
 
2
)
 
7
(PO
 
4
)
 
13
(OH)
 
14
 · 58H
 
2
O
19.11.28Threadgoldite
Al(UO
 
2
)
 
2
(PO
 
4
)
 
2
(OH) · 8H
 
2
O
19.11.29Phuralumite
Al
 
2
(UO
 
2
)
 
3
(PO
 
4
)
 
3
(OH)
 
2
 · 13H
 
2
O
19.11.30Moreauite
Al
 
3
(UO
 
2
)(PO
 
4
)
 
3
(OH)
 
2
 · 13H
 
2
O
19.11.31Sabugalite
HAl(UO
 
2
)
 
4
(PO
 
4
)
 
4
 · 16H
 
2
O
19.11.32Uranospathite
(Al,☐)(UO
 
2
)
 
2
(PO
 
4
)
 
2
F · 20(H
 
2
O,F)
19.11.33Althupite
AlTh(UO
 
2
)
 
7
(PO
 
4
)
 
4
(OH)
 
5
O
 
2
 · 15H
 
2
O
19.11.34Françoisite-(Nd)
(Nd,Ce,Sm)(UO
 
2
)
 
3
(PO
 
4
)
 
2
O(OH) · 6H
 
2
O
19.11.35Kivuite
(Th,Ca,Pb)(UO
 
2
)
 
4
(HPO
 
4
)
 
2
(OH)
 
8
 · 7H
 
2
O
19.11.36Parsonsite
Pb
 
2
(UO
 
2
)(PO
 
4
)
 
2
 · 2H
 
2
O
19.11.37Dewindtite
Pb(UO
 
2
)
 
3
(PO
 
4
)
 
2
(OH)
 
2
 · 3H
 
2
O
19.11.38Dumontite
Pb
 
2
(UO
 
2
)
 
3
(PO
 
4
)
 
2
(OH)
 
4
 · 3H
 
2
O
19.11.39Przhevalskite
Pb
 
2
(UO
 
2
)
 
3
(PO
 
4
)
 
2
(OH)
 
4
 · 3H
 
2
O
19.11.40Lehnerite
Mn
2+
 
(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 8H
 
2
O
19.11.41Bassetite
Fe
2+
 
(UO
 
2
)
 
2
(PO
 
4
)
 
2
 · 8H
 
2
O
19.11.42Vochtenite
(Fe
2+
 
,Mg)Fe
3+
 
(UO
 
2
)
 
4
(PO
 
4
)
 
4
(OH) · 12-13H
 
2
O

Other Names for Yingjiangite

Synonyms:
IMA1989-001
Other Languages:
German:Yingjiangit
Spanish:Yingjiangita

Other Information

Fluorescence in UV light:weak yellowish green under UV
Health Warning:Radioactive

References for Yingjiangite

Reference List:

- +
Chen Zhangru, Huang Yuzhu, and Gu Xiaofa (1990): A new uranium mineral - Yingjiangite. Acta Mineralogica Sinica 10(2), 102-105 (in Chinese with English abstract). - American Mineralogist (1991), 76, 1731 (abstract).

Zhang Jingyi, Wan Anwa, and Gong Wenshu (1992): New data on yingjiangite. Yanshi Kuangwuxue Zazhi [Acta Petrologica et Mineralogica] 11(2), 178-184 (in Chinese with English abstract). - New Minerals 1990-1994, 214 (abstract); American Mineralogist (1994), 79, 1214 (abstract).

Coutinho, J. M. V. and Atencio, D. (2000): Phosphuranylite from Minas Gerais, Brazil and its identity with yiangjiangite. M&M4, 4th Intern. Conf. on Mineralogy & Museums, Melbourne, December 4-7, 2000; Program and Abstract Volume, 35.

Frost, R. L., J. Cejka, and G. Ayoko (2008): Raman spectroscopic study of the uranyl phosphate minerals phosphuranylite and yingjiangite. Journal of Raman Spectroscopy 39,495-502(2008).

Internet Links for Yingjiangite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Yingjiangite details from Handbook of Mineralogy (PDF)
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    • Localities for Yingjiangite

    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    China
     
    • Guangdong Province
      • Shaoguan Prefecture
        • Wengyuan Co.
    		Jingyi Zhang, Anwa Wan, and Wenshu Gong (1992): Acta Petrologica et Mineralogica 11(2), 178-184; Long Lu, Fanrong Chen, R.C. Ewing, and Rucheng Wang (2007): Radiochimica Acta 95(1), 25-32.
    • Yunnan Province
      • Dehong Autonomous Prefecture
        • Yingjiang Co.
          • Tongbiguan
    		Chen Zhangru, Huang Yuzhu, and Gu Xiaofa (1990): A new uranium mineral - Yingjiangite. Acta Mineralogica Sinica 10(2), 102-105.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Karlovy Vary Region
        • Krušné Hory Mts (Erzgebirge)
          • Jáchymov (St Joachimsthal) District
    		Lapis 2002(7/8), 63-65
    Germany
     
    • Saxony
      • Erzgebirge
        • Johanngeorgenstadt District
          • Johanngeorgenstadt
    		Gröbner, J., Grimm, O. & Zienau, H. (2005): Neufunde interessanter Wismut- und Uranmineralien am Schaarschacht, Johanngeorgenstadt, Sachsen. Lapis 30 (6), 44-51; 62.
      • Vogtland
        • Oelsnitz
    		Gröbner, J. and Kolitsch, U. (2007): The minerals of the uranium prospect at Tirpersdorf, Vogtland. Lapis 32, 37-42; 58. (in German)
    USA
     
    • Utah
      • Emery Co.
        • San Rafael District (San Rafael Swell)
          • Delta
    		Min News 14:7 p1
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