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Erlianite

Formula:
(Fe,Mg)
 
4
(Fe,V)
 
2
Si
 
6
O
 
15
(OH,O)
 
8
System:OrthorhombicHardness:3½
This page provides mineralogical data about Erlianite.

Classification of Erlianite

IMA status:Approved
Strunz 8th edition ID:8/H.16-10
Nickel-Strunz 10th (pending) edition ID:9.HC.05

9 : SILICATES (Germanates)
H : Unclassified silicates
C : With Mn, Fe
Dana 8th edition ID:78.5.5.1

78 : Unclassified Silicates
5 :
Hey's CIM Ref.:14.14.6

14 : Silicates not Containing Aluminum
14 : Silicates of V and Bi
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Type Occurrence of Erlianite

Type Locality:Harhada Mine, Wenduermiao Fe deposit, Erenhot (Erlianhaote) Co., Xilin Gol (Xilinguole) League, Inner Mongolia Autonomous Region, China
Year of Discovery:1986
Associated Minerals at type locality:
QuartzMagnetiteSideriteAlbiteStilpnomelane
MinnesotaiteDeerite

Physical Properties of Erlianite

Hardness (Mohs):3½

Crystallography of Erlianite

Crystal System:Orthorhombic
Cell Parameters:a = 23.2Å, b = 9.2Å, c = 13.18Å
Ratio:a:b:c = 2.522 : 1 : 1.433
Unit Cell Volume:V 2,813.14 ų (Calculated from Unit Cell)

Optical Data of Erlianite

Type:Biaxial (-)
RI values: nα = 1.667 nβ = 1.674 nγ = 1.679
2V:Measured: 56° to 59°, Calculated: 80°
Maximum Birefringence:δ = 0.012

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

Chemical Properties of Erlianite

Formula:
(Fe,Mg)
 
4
(Fe,V)
 
2
Si
 
6
O
 
15
(OH,O)
 
8
Essential elements:Fe, H, O, Si
All elements listed in formula:Fe, H, Mg, O, Si, V
Common Impurities:Ti,Al,Mn,Ca,K,Na,P

Relationship of Erlianite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.HC.10Bostwickite
CaMn
 
6
Si
 
3
O
 
16
·7H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
14.14.1Cavansite
Ca(VO)Si
 
4
O
 
10
·4H
 
2
O
14.14.2Pentagonite
Ca(VO)Si
 
4
O
 
10
·4H
 
2
O
14.14.3Goldmanite
Ca
 
3
(V
3+
 
,Al,Fe
3+
 
)
 
2
[SiO
 
4
]
 
3
14.14.4Haradaite
SrVSi
 
2
O
 
7
14.14.5Saneroite
Na
 
2
(Mn,Mn)
 
10
Si
 
11
VO
 
34
(OH)
 
4
14.14.7Eulytine
Bi
 
4
[SiO
 
4
]
 
3
14.14.8Bismutoferrite
Fe
3+
2
Bi[OH|(SiO
 
4
)
 
2
]

Other Names for Erlianite

Synonyms:
IMA1985-042
Other Languages:
German:Erlianit
Simplified Chinese:二连石
Spanish:Erlianita

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 Erlianite

Reference List:Feng Xiancan, Yang Ruiying, Song Guisen, Li Chenggui, and Lu Guojun (1986): Erlianite, a new vanadium- and iron-bearing silicate mineral. Acta Mineralogica Sinica 6(4), 333-337. - American Mineralogist (1987), 72, 1023-1024 (abstract).

Internet Links for Erlianite

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

    (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
     
    • Inner Mongolia Autonomous Region
      • Xilin Gol (Xilinguole) League
        • Erenhot (Erlianhaote) Co.
          • Wenduermiao Fe deposit
    		Feng Xiancan, Yang Ruiying, Song Guisen, Li Chenggui, and Lu Guojun (1986): Acta Mineralogica Sinica 6(4), 333-337.
    Mineral and/or Locality
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