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Ximengite

Formula:
BiPO
 
4
System:TrigonalColour:Colourless
Hardness:4½
Name:Named after its discovery locality, the Ximeng tin mining district, Yunnan Province, China.
This page provides mineralogical data about Ximengite.

Classification of Ximengite

IMA status:Approved 1985
Strunz 8th edition ID:7/A.18-30
Nickel-Strunz 10th (pending) edition ID:8.AD.45

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
Dana 8th edition ID:38.4.9.1

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
Hey's CIM Ref.:19.10.11

19 : Phosphates
10 : Phosphates of Pb, Th, V and Bi
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Type Occurrence of Ximengite

Type Locality:Ximeng Co., Pu'er Prefecture, Yunnan Province, China
Year of Discovery:1989

Physical Properties of Ximengite

Lustre:Vitreous, Greasy
Diaphaneity (Transparency):Transparent
Colour:Colourless
Hardness (Mohs):4½

Crystallography of Ximengite

Crystal System:Trigonal
Cell Parameters:a = 6.98Å, c = 6.47Å
Ratio:a:c = 1 : 0.927
Unit Cell Volume:V 272.99 ų (Calculated from Unit Cell)

Chemical Properties of Ximengite

Formula:
BiPO
 
4
Essential elements:Bi, O, P
All elements listed in formula:Bi, O, P

Relationship of Ximengite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.AD.05Nahpoite
Na
 
2
HPO
 
4
8.AD.10Monetite
CaHPO
 
4
8.AD.10Weilite
CaHAsO
 
4
8.AD.10Švenekite
Ca(H
 
2
AsO
 
4
)
 
2
8.AD.15Archerite
(K,NH
 
4
)[H
 
2
PO
 
4
]
8.AD.15Biphosphammite
(NH
 
4
,K)H
 
2
PO
 
4
8.AD.20Phosphammite
(NH
 
4
)
 
2
HPO
 
4
8.AD.25Buchwaldite
NaCaPO
 
4
8.AD.30Schultenite
PbHAsO
 
4
8.AD.35Chernovite-(Y)
YAsO
 
4
8.AD.35Dreyerite
BiVO
 
4
8.AD.35Wakefieldite-(Ce)
(Ce,Pb)VO
 
4
8.AD.35Wakefieldite-(Y)
YVO
 
4
8.AD.35Xenotime-(Y)
YPO
 
4
8.AD.35Pretulite
ScPO
 
4
8.AD.35Xenotime-(Yb)
(Yb,Y,HREE)PO
 
4
8.AD.35Wakefieldite-(La)
LaVO
 
4
8.AD.40Pucherite
BiVO
 
4
8.AD.50Gasparite-(Ce)
(Ce,REE)AsO
 
4
8.AD.50Monazite-(Ce)
(Ce,La,Nd,Th)PO
 
4
8.AD.50Monazite-(La)
(La,Ce,Nd)PO
 
4
8.AD.50Monazite-(Nd)
(Nd,La,Ce)PO
 
4
8.AD.50Rooseveltite
BiAsO
 
4
8.AD.50Cheralite
(Ca,Ce)(Th,Ce)[PO
 
4
]
 
2
8.AD.50Monazite-(Sm)
(Sm,Gd,Ce,Th)(PO
 
4
)
8.AD.50UM2005-35-VO:CaFePSiTh
(Th,Ca)[VO
 
4
,SiO
 
4
,PO
 
4
]
8.AD.55Tetrarooseveltite
Bi(AsO
 
4
)
8.AD.60Chursinite
(Hg-Hg)
 
0.5
Hg
2+
 
[AsO
 
4
]
8.AD.65Clinobisvanite
BiVO
 
4
Related Minerals - Hey's Index Grouping:

- +
19.10.1 Oxypyromorphite
Pb
 
10
(PO
 
4
)
 
6
O
19.10.2Plumbogummite
PbAl
 
3
[(OH)
 
5
|(PO
 
4
)
 
2
] · H
 
2
O
19.10.3Kamitugaite
AlPb(UO
 
2
)
 
5
[(OH)
 
9
|(PO
 
4
,AsO
 
4
)
 
2
] · 5H
 
2
O
19.10.5Drugmanite
Pb(Fe
3+
 
,Al)
 
2
[OH|PO
 
4
]
 
2
19.10.6Brabantite
CaTh(PO
 
4
)
 
2
19.10.8Grayite
(Th,Pb,Ca)PO
 
4
·H
 
2
O
19.10.9Brockite
(Ca,Th,Ce)(PO
 
4
)·H
 
2
O
19.10.10Sincosite
CaV
 
2
(PO
 
4
)
 
2
O
 
2
·5H
 
2
O
19.10.12Paulkellerite
(BiO)
 
2
Fe
3+
 
[(OH)
 
2
|PO
 
4
]

Other Names for Ximengite

Synonyms:
IMA1985-004
Other Languages:
German:Ximengit
Russian:Сименгит
Spanish:Ximengita

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 Ximengite

Reference List:Shi Jiaxin (1989): A new mineral - Ximengite. Acta Mineralogica Sinica [Kuangwu Xuebao] 9(1), 15-19 (in Chinese with English abstract). - Mineralogical Abstracts 41, 472 (abstract).

American Mineralogist (1991), 76, 1436.

Internet Links for Ximengite

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

    (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
     
    • Yunnan Province
      • Pu'er Prefecture
    		Shi Jiaxin (1989): Acta Mineralogica Sinica 9(1), 15-19.
    Democratic Republic of Congo (Zaïre)
     
    • Kivu
    		analysed (EDS & P-XRD) Franz Neuhold
    Italy
     
    • Tuscany
      • Lucca Province
        • Apuan Alps
          • Vergemoli
            • Fornovolasco
    		Biagioni, C., Orlandi, P., & Bonini, M. (2008). Fornovolasco. Storia e minerali delle miniere di ferro presso Vergemoli (Alpi Apuane). Rivista Mineralogica Italiana, 4/2008, 230-252
    Mineral and/or Locality
    Google
     
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