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Luobusaite

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Formula:
Fe
 
0.84
Si
 
2
System:OrthorhombicColour:steel-gray
Name:Named for the type locality, Luobusa Mine, Tibet.
This page provides mineralogical data about Luobusaite.

Classification of Luobusaite

IMA status:Approved 2006
Strunz 8th edition ID:1/A.12-70
Strunz 9th edition ID:1.BB.15
Nickel-Strunz 10th (pending) edition ID:1.BB.25

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides and Phosphides
B : Silicides
Dana 8th edition ID:1.1.33.7

1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group
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Type Occurrence of Luobusaite

Type Locality:Luobusha ophiolite ("Luobusa ophiolite"), Qusum (Qusong) Co., Shannan (Lhokha; Lhoka) Prefecture, Tibet Autonomous Region, China
General Appearance of Type Material:irregular grains
Place of Conservation of Type Material:China Geological Museum

Physical Properties of Luobusaite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:steel-gray
Hardness (Vickers):VHN100=1086 kg/mm2
Fracture:Conchoidal
Density (calculated):4.55 g/cm3

Crystallography of Luobusaite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Cmca {C2/m 2/c 21/a}
Cell Parameters:a = 9.874Å, b = 7.784Å, c = 7.829Å
Ratio:a:b:c = 1.268 : 1 : 1.006
Unit Cell Volume:V 601.7 ų
Z:16
X-Ray Powder Diffraction:
d-spacingIntensity
3.06 (80)
2.849 (20)
2.402 (25)
1.977 (40)
1.889 (60)
1.865 (40)
1.844 (100)
1.750 (15)

Chemical Properties of Luobusaite

Formula:
Fe
 
0.84
Si
 
2
Essential elements:Fe, Si
All elements listed in formula:Fe, Si

Relationship of Luobusaite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
1.BB.Zangboite
TiFeSi
 
2
1.BB.05Suessite
(Fe,Ni)
 
3
Si
1.BB.05Mavlyanovite
Mn
 
5
Si
 
3
1.BB.10UM2001-18-Si:CuPtSn
(Cu,Pt)
 
4
Si
1.BB.10Perryite
(Ni,Fe)
 
5
(Si,P)
 
2
1.BB.15Fersilicite
FeSi
1.BB.15Naquite
FeSi
1.BB.20Ferdisilicite
FeSi
 
2
1.BB.20Linzhiite
FeSi
 
2
1.BB.30Gupeiite
Fe
 
3
Si
1.BB.35Hapkeite
Fe
 
2
Si
1.BB.40Xifengite
Fe
 
5
Si
 
3

Other Names for Luobusaite

Synonyms:
IMA 2005-052aRuobusaiteUnnamed (Fe Silicide)
Other Languages:

Other Information

Fluorescence in UV light:non-fluorescent
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 Luobusaite

Reference List:

- +
Bai, W., N. Shi, Q. Fang, G. Li, J. Yang, M.Xiong & H. Rong (2007): "Luobusaite- a new mineral": Acta Geologica Sinica 80(10), 1487-1490.[Chinese with English abstract] [MinAbs MA 07M/0529] (abstract)

Internet Links for Luobusaite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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    • Localities for Luobusaite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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    (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
     
    • Tibet Autonomous Region
      • Shannan (Lhokha; Lhoka) Prefecture
        • Qusum (Qusong) Co.
    		Wenji Bai, Nicheng Shi, Qingsong Fang, Guowu Li, Ming Xiong, Jingsui Yang, and He Rong (2006): Acta Geologica Sinica 80(5), 656-659; MinAbs MA 07M/0529 (abstract).
    Russia
     
    • Far-Eastern Region
      • Kamchatka Oblast'
    		S. ISHIMARU, S. ARAI and H. SHUKUNO (2009) Metals in oxidized and metasomatized peridotite xenoliths derived from the mantle wedge. Goldschmidt Conference Abstracts 2009.
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