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Yimengite

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Yimeng Mts (Yimeng Shan), Linyi Prefecture, Shandong Province, China
© 2008, JGW




Formula:
K(Cr,Ti,Fe,Mg)
 
12
O
 
19
System:HexagonalColour:Black, grey in reflected ...
Lustre:MetallicHardness:4
Member of:Magnetoplumbite Group
Name:Named after its discovery locality, the Yimeng Mts (Yimeng Shan), Shandong Province, China.


Magnetoplumbite Group.

Classification of Yimengite

IMA status:Approved 1982
Strunz 8th edition ID:4/C.08-10
Nickel-Strunz 10th (pending) edition ID:4.CC.45

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
C : With large and medium-sized cations
Dana 8th edition ID:7.4.1.2

7 : MULTIPLE OXIDES
4 : AB12X19
Hey's CIM Ref.:7.14.5

7 : Oxides and Hydroxides
14 : Oxides of Cr
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Type Occurrence of Yimengite

Type Locality:Yimeng Mts (Yimeng Shan), Linyi Prefecture, Shandong Province, China
Year of Discovery:1983

Physical Properties of Yimengite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Black, grey in reflected light.
Streak:Brown
Hardness (Mohs):4

Crystallography of Yimengite

Crystal System:Hexagonal
Cell Parameters:a = 5.85Å, c = 22.94Å
Ratio:a:c = 1 : 3.921
Unit Cell Volume:V 679.89 ų (Calculated from Unit Cell)

Chemical Properties of Yimengite

Formula:
K(Cr,Ti,Fe,Mg)
 
12
O
 
19
Essential elements:Cr, K, O
All elements listed in formula:Cr, Fe, K, Mg, O, Ti

Relationship of Yimengite to other Species

Member of:Magnetoplumbite Group
Other Members of Group:

- +
Barioferrite
BaFe
3+
12
O
 
19
Batiferrite
Ba[Ti
 
2
Fe
3+
8
Fe
2+
2
]O
 
19
Haggertyite
Ba[Fe
2+
6
Ti
 
5
Mg]O
 
19
Hawthorneite
Ba(MgTi
 
3
Cr
 
4
Fe
 
4
)O
 
19
Hibonite
(Ca,Ce)Al
 
12
O
 
19
IMA2009-027
(Fe,Mg)Al
 
12
O
 
19
Magnetoplumbite
(Pb,Mn)(Fe,Mn)
 
12
O
 
19
Nežilovite
PbZn
 
2
(Mn
4+
 
,Ti
4+
 
)
 
2
Fe
3+
8
O
 
19
Plumboferrite
Pb
 
2
Fe
3+
11-x
Mn
2+
x
O
 
19-2x
, x = 1/3
Related Minerals - Nickel-Strunz Grouping):

- +
4.CC.05Chrombismite
Bi
 
16
CrO
 
27
4.CC.10Freudenbergite
Na
 
2
(Ti,Fe)
 
8
O
 
16
4.CC.15Grossite
CaAl
 
4
O
 
7
4.CC.20Mayenite
Ca
 
12
Al
 
14
O
 
33
4.CC.25Yafsoanite
Ca
 
3
Zn
 
3
(TeO
 
6
)
 
2
4.CC.30Latrappite
(Ca,Na)(Nb,Ti,Fe)O
 
3
4.CC.30Lueshite
NaNbO
 
3
4.CC.30Natroniobite
NaNbO
 
3
4.CC.30Perovskite
CaTiO
 
3
4.CC.30Barioperovskite
BaTiO
 
3
4.CC.30Lakargiite
Ca(Zr,Sn,Ti)O
 
3
4.CC.30Megawite
CaSnO
 
3
4.CC.35Loparite-(Ce)
(Na,Ce,Ca,Sr,Th)(Ti,Nb,Fe)O
 
3
4.CC.35Macedonite
PbTiO
 
3
4.CC.35Tausonite
SrTiO
 
3
4.CC.35Isolueshite
(Na,La,Ca)(Nb,Ti)O
 
3
4.CC.40Crichtonite
(Sr,La,Ce,Y)(Ti,Fe
3+
 
,Mn)
 
21
O
 
38
4.CC.40Davidite-(Ce)
(Ce,La)(Y,U,Fe)(Ti,Fe)
 
20
(O,OH)
 
38
4.CC.40Davidite-(La)
(La,Ce)(Y,U,Fe)(Ti,Fe)
 
20
(O,OH)
 
38
4.CC.40Davidite-(Y)
(Y,La,Ce,Na,Ca,Pb)(Y,Fe
2+
 
,◻)(Fe
2+
 
,Mn
2+
 
)
 
2
(Ti,Fe
3+
 
,Nb,Zr)
 
18
O
 
38
 (hypothetical)
4.CC.40Landauite
NaMnZn
 
2
(Ti,Fe)
 
6
Ti
 
12
O
 
38
4.CC.40Lindsleyite
(Ba,Sr)(Ti,Zr,Fe,Cr)
 
21
O
 
38
4.CC.40Loveringite
(Ca,Ce)(Ti,Fe,Cr,Mg)
 
21
O
 
38
4.CC.40Mathiasite
K(Ti,Cr,Fe,Mg,Zr)
 
21
O
 
38
4.CC.40Senaite
Pb(Ti,Fe,Mn)
 
21
O
 
38
4.CC.40Dessauite-(Y)
(Sr,Pb)(Y,U)(Ti,Fe
3+
 
)
 
20
O
 
38
4.CC.40Cleusonite
(Pb,Sr)(U
4+
 
,U
6+
 
)(Fe
2+
 
,Zn)
 
2
(Ti,Fe
2+
 
,Fe
3+
 
)
 
18
(O,OH)
 
38
4.CC.40Gramaccioliite-(Y)
(Pb,Sr)(Y,Mn)Fe
3+
2
(Ti,Fe
3+
 
)
 
18
O
 
38
4.CC.45Diaoyudaoite
NaAl
 
11
O
 
17
4.CC.45Hawthorneite
Ba(MgTi
 
3
Cr
 
4
Fe
 
4
)O
 
19
4.CC.45Hibonite
(Ca,Ce)Al
 
12
O
 
19
4.CC.45Lindqvistite
Pb
 
2
(Mg,Fe)Fe
 
16
O
 
27
4.CC.45Magnetoplumbite
(Pb,Mn)(Fe,Mn)
 
12
O
 
19
4.CC.45Plumboferrite
Pb
 
2
Fe
3+
11-x
Mn
2+
x
O
 
19-2x
, x = 1/3
4.CC.45Haggertyite
Ba[Fe
2+
6
Ti
 
5
Mg]O
 
19
4.CC.45Nežilovite
PbZn
 
2
(Mn
4+
 
,Ti
4+
 
)
 
2
Fe
3+
8
O
 
19
4.CC.45Batiferrite
Ba[Ti
 
2
Fe
3+
8
Fe
2+
2
]O
 
19
4.CC.45IMA2009-027
(Fe,Mg)Al
 
12
O
 
19
4.CC.45Barioferrite
BaFe
3+
12
O
 
19
4.CC.50Jeppeite
(K,Ba)
 
2
(Ti,Fe)
 
6
O
 
13
4.CC.55Zenzénite
Pb
 
3
(Fe,Mn)
 
4
Mn
 
3
O
 
13
4.CC.60Mengxianminite
(Ca,Na)
 
3
(Fe,Mn)
 
2
Mg
 
2
(Sn,Zn)
 
5
Al
 
8
O
 
29
Related Minerals - Hey's Index Grouping:

- +
7.14.1Eskolaite
Cr
 
2
O
 
3
7.14.2Bracewellite
CrO(OH)
7.14.3Grimaldiite
CrO(OH)
7.14.4Guyanaite
CrO(OH)
7.14.6Mathiasite
K(Ti,Cr,Fe,Mg,Zr)
 
21
O
 
38
7.14.7Mcconnellite
CuCrO
 
2
7.14.8Redledgeite
Ba
 
x
([Cr,Fe,V]
3+
2x
Ti
 
8-2x
)O
 
16
7.14.9Hawthorneite
Ba(MgTi
 
3
Cr
 
4
Fe
 
4
)O
 
19
7.14.10Zincochromite
ZnCr
 
2
O
 
4
7.14.11Wattersite
(Hg
+
2
)
 
2
Hg
2+
 
(CrO
 
4
)O
 
2
7.14.12Chromite
Fe(Cr,Al,Fe)
 
2
O
 
4
7.14.13Magnesiochromite
Mg(Cr,Al,Fe)
 
2
O
 
4
7.14.14 Donathite

Other Names for Yimengite

Synonyms:
IMA1982-046
Other Languages:
German:Yimengit
Spanish:Yimengita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Yimengite

Reference List:

- +
Dong Zhenxin, Zhou Jianxiong, Lu Qi, and Peng Zhizhong (1983): Yimengite, K(Cr, Ti,Fe,Mg)12O19, a new mineral from China. Chinese Science Bulletin [Kexue Tongbao] 28(15), 932-936 (in Chinese). - American Mineralogist (1985), 70, 218 (abstract).

Scientia Sinica, Series B, 29, 920-923.

Internet Links for Yimengite

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  • Raman and XRD data at RRUFF project
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  • Yimengite details from Handbook of Mineralogy (PDF)
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    • Localities for Yimengite

    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
     
    • Liaoning Province (Manchuria; Dongbei Region)
      • Liaodong Peninsula
        • Dalian Prefecture
          • Wafangdian Co.
            • Fuxian Kimberlite field
              • Toudaogou (incl. Pipes No. 51; 68 & 74)
    • Shandong Province
      • Linyi Prefecture
    		Dong Zhenxin, Zhou Jianxiong, Lu Qi, and Peng Zhizhong (1983): Chinese Science Bulletin [Kexue Tongbao] 28(15), 932-936.
          • Mengyin Co.
    		Dong Zhenxin, Zhou Jianxiong, Lu Qi, and Peng Zhizhong (1983): Chinese Science Bulletin [Kexue Tongbao] 28(15), 932-936.
    Zimbabwe
     
    • Masvingo District
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