Learning Center What is a mineral?The most common minerals on earth Information for Educators Mindat Articles The Elements The Rock H. Currier Digital Library Geologic Time

Minerals by Properties Minerals by Chemistry Advanced Locality Search Random Mineral Random Locality Search by minID Localities Near Me Search Articles Search Glossary More Search Options

The Mindat Manual Add a New Photo Rate Photos Locality Edit Report Coordinate Completion Report Add Glossary Item

Mining Companies Statistics Users Mineral Museums Clubs & Organizations Mineral Shows & Events The Mindat Directory Device Settings The Mineral Quiz

Photo Search Photo Galleries Search by Color New Photos Today New Photos Yesterday Members' Photo Galleries Past Photo of the Day Gallery Photography

Gupeiite

A valid IMA mineral species

This page is currently not sponsored. Click here to sponsor this page.

Photos of Gupeiite (3)

Search Photos of Gupeiite

Edit Add Synonym Edit CIF structures Clear Cache

Gupeiite, etc.

Is River, Nizhnyaya Tura, Sverdlovsk Oblast, Russia

Gupeiite

Ir-Tash Stream Basin, Arashan Mtn, Chatkal-Kuraminskii Range, Tashkent, Uzbekistan

Gupeiite

Ir-Tash Stream Basin, Arashan Mtn, Chatkal-Kuraminskii Range, Tashkent, Uzbekistan

Gupeiite, etc.

Is River, Nizhnyaya Tura, Sverdlovsk Oblast, Russia

Gupeiite

Ir-Tash Stream Basin, Arashan Mtn, Chatkal-Kuraminskii Range, Tashkent, Uzbekistan

Gupeiite

Ir-Tash Stream Basin, Arashan Mtn, Chatkal-Kuraminskii Range, Tashkent, Uzbekistan

Gupeiite, etc.

Is River, Nizhnyaya Tura, Sverdlovsk Oblast, Russia

Gupeiite

Ir-Tash Stream Basin, Arashan Mtn, Chatkal-Kuraminskii Range, Tashkent, Uzbekistan

Hide all sections | Show all sections

About GupeiiteHide

The Gubeikou (Gupeikou) Great Wall

Formula:

Fe₃Si

Colour:

Black to steel-gray

Lustre:

Metallic

Hardness:

Specific Gravity:

7.29 (Calculated)

Crystal System:

Isometric

Name:

Named by Yu Zuxiang for an eastern passageway, Gubeikou (Gupeikou), of the Great Wall of China. Gupeiite was found with and described at the same time as xifengite, named for another passageway of the Great Wall.

Type Locality:

ⓘ Placer occurrences (Yanshan meteorite), Chengde, Hebei, China

One of many natural Fe-Si phases; beside the approved species (listed below) you may want to compare Unnamed (Fe silicide I), Unnamed (Fe silicide II) and UM2000-60-Si:Fe.

Unique IdentifiersHide

Mindat ID:

1780

Long-form identifier:

mindat:1:1:1780:6

GUID
(UUID V4):

20894549-e0de-4b8b-8d2f-31749d8cf3e5

IMA Classification of GupeiiteHide

IMA status:

Approved

First published:

1984

Type description reference:

Yu, Z. (1984) Two new minerals gupeiite and xifengite in cosmic dusts from Yanshan. Acta Petrologica Mineralogica et Analytica: 3(3): 231-238.

Classification of GupeiiteHide

Strunz-mindat (2024):

1.BB.30

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides, Phosphides and Hydrides
B : Silicides

Dana 7th ed.:

1.1.33.5

Dana 8th ed.:

1.1.23.2

1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group

Hey's CIM Ref.:

2.7

2 : Carbides, Nitrides, Silicides and Phosphides

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference
Gup	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of GupeiiteHide

Lustre:

Metallic

Transparency:

Opaque

Colour:

Black to steel-gray

Streak:

Black

Hardness:

5 on Mohs scale

Hardness:

VHN₅₀=494 - 514 kg/mm² - Vickers

Tenacity:

Brittle

Cleavage:

None Observed

Density:

7.29 g/cm³ (Calculated)

Comment:

Dunn gives calc = 7.15

Optical Data of GupeiiteHide

Type:

Isotropic

Reflectivity:

Wavelength	R
402nm	48.4%
439nm	48.4%
480nm	51.0%
495nm	51.2%
546nm	53.5%
590nm	53.4%
624nm	53.9%
644nm	54.0%
657nm	54.3%

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 54.3%.

Colour in reflected light:

Grayish white with a yellow tint

Internal Reflections:

None

Chemistry of GupeiiteHide

Mindat Formula:

Fe₃Si

Elements listed:

Fe, Si - search for minerals with similar chemistry

Crystallography of GupeiiteHide

Crystal System:

Isometric

Class (H-M):

m3m (4/m 3 2/m) - Hexoctahedral

Space Group:

Fm3m

Setting:

Fm3m

Cell Parameters:

a = 5.670(5) Å

Unit Cell V:

182.28 Å³ (Calculated from Unit Cell)

Comment:

Space Group: [(by analogy to synthetic Fe3Si).

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4

View
CIF File Best | x | y | z | a | b | c

Rotation
Stop | Start

Labels
Console Off | On | Grey | Yellow

Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Year	Locality	Temp (K)
0019762	Gupeiite	Buschow K H J, van Engen P G, Jongebreur R (1983) Magneto-optical properties of metallic ferromagnetic materials Journal of Magnetism and Magnetic Materials 38 1-22	1983	synthetic	293
0019760	Gupeiite	Farquhar M C M, Lipson H, Weill A R (1945) An X-ray study of iron-rich iron-silicon alloys Journal of the Iron and Steel Institute 152 457-472	1945	synthetic	293
0019761	Gupeiite	Kanematsu K (1986) Stability of crystal structure of (Fe,V)3M and (Fe,Ni)3M (M=Si,Ge,Sn) and its analysis based on rigid band model Transactions of the Japan Institute of Metals 27 225-232	1986	synthetic	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Gupeiite'
loop_
_publ_author_name
'Buschow K H J'
'van Engen P G'
'Jongebreur R'
_journal_name_full 'Journal of Magnetism and Magnetic Materials'
_journal_volume 38 
_journal_year 1983
_journal_page_first 1
_journal_page_last 22
_publ_section_title
;
 Magneto-optical properties of metallic ferromagnetic materials
;
_database_code_amcsd 0019762
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Fe3 Si'
_cell_length_a 5.662
_cell_length_b 5.662
_cell_length_c 5.662
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 181.514
_exptl_crystal_density_diffrn      7.159
_symmetry_space_group_name_H-M 'F m 3 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2+y,1/2+z'
  '1/2+x,y,1/2+z'
  '1/2+x,1/2+y,z'
  'z,-x,y'
  'z,1/2-x,1/2+y'
  '1/2+z,-x,1/2+y'
  '1/2+z,1/2-x,y'
  '-y,z,-x'
  '-y,1/2+z,1/2-x'
  '1/2-y,z,1/2-x'
  '1/2-y,1/2+z,-x'
  'x,-y,z'
  'x,1/2-y,1/2+z'
  '1/2+x,-y,1/2+z'
  '1/2+x,1/2-y,z'
  '-z,x,-y'
  '-z,1/2+x,1/2-y'
  '1/2-z,x,1/2-y'
  '1/2-z,1/2+x,-y'
  'y,-z,x'
  'y,1/2-z,1/2+x'
  '1/2+y,-z,1/2+x'
  '1/2+y,1/2-z,x'
  '-x,y,-z'
  '-x,1/2+y,1/2-z'
  '1/2-x,y,1/2-z'
  '1/2-x,1/2+y,-z'
  'x,-z,-y'
  'x,1/2-z,1/2-y'
  '1/2+x,-z,1/2-y'
  '1/2+x,1/2-z,-y'
  '-z,y,x'
  '-z,1/2+y,1/2+x'
  '1/2-z,y,1/2+x'
  '1/2-z,1/2+y,x'
  'y,-x,-z'
  'y,1/2-x,1/2-z'
  '1/2+y,-x,1/2-z'
  '1/2+y,1/2-x,-z'
  '-x,z,y'
  '-x,1/2+z,1/2+y'
  '1/2-x,z,1/2+y'
  '1/2-x,1/2+z,y'
  'z,-y,-x'
  'z,1/2-y,1/2-x'
  '1/2+z,-y,1/2-x'
  '1/2+z,1/2-y,-x'
  '-y,x,z'
  '-y,1/2+x,1/2+z'
  '1/2-y,x,1/2+z'
  '1/2-y,1/2+x,z'
  'x,z,y'
  'x,1/2+z,1/2+y'
  '1/2+x,z,1/2+y'
  '1/2+x,1/2+z,y'
  '-z,-y,-x'
  '-z,1/2-y,1/2-x'
  '1/2-z,-y,1/2-x'
  '1/2-z,1/2-y,-x'
  'y,x,z'
  'y,1/2+x,1/2+z'
  '1/2+y,x,1/2+z'
  '1/2+y,1/2+x,z'
  '-x,-z,-y'
  '-x,1/2-z,1/2-y'
  '1/2-x,-z,1/2-y'
  '1/2-x,1/2-z,-y'
  'z,y,x'
  'z,1/2+y,1/2+x'
  '1/2+z,y,1/2+x'
  '1/2+z,1/2+y,x'
  '-y,-x,-z'
  '-y,1/2-x,1/2-z'
  '1/2-y,-x,1/2-z'
  '1/2-y,1/2-x,-z'
  'z,x,-y'
  'z,1/2+x,1/2-y'
  '1/2+z,x,1/2-y'
  '1/2+z,1/2+x,-y'
  '-y,-z,x'
  '-y,1/2-z,1/2+x'
  '1/2-y,-z,1/2+x'
  '1/2-y,1/2-z,x'
  'x,y,-z'
  'x,1/2+y,1/2-z'
  '1/2+x,y,1/2-z'
  '1/2+x,1/2+y,-z'
  '-z,-x,y'
  '-z,1/2-x,1/2+y'
  '1/2-z,-x,1/2+y'
  '1/2-z,1/2-x,y'
  'y,z,-x'
  'y,1/2+z,1/2-x'
  '1/2+y,z,1/2-x'
  '1/2+y,1/2+z,-x'
  '-x,-y,z'
  '-x,1/2-y,1/2+z'
  '1/2-x,-y,1/2+z'
  '1/2-x,1/2-y,z'
  '-z,x,y'
  '-z,1/2+x,1/2+y'
  '1/2-z,x,1/2+y'
  '1/2-z,1/2+x,y'
  'y,-z,-x'
  'y,1/2-z,1/2-x'
  '1/2+y,-z,1/2-x'
  '1/2+y,1/2-z,-x'
  '-x,y,z'
  '-x,1/2+y,1/2+z'
  '1/2-x,y,1/2+z'
  '1/2-x,1/2+y,z'
  'z,-x,-y'
  'z,1/2-x,1/2-y'
  '1/2+z,-x,1/2-y'
  '1/2+z,1/2-x,-y'
  '-y,z,x'
  '-y,1/2+z,1/2+x'
  '1/2-y,z,1/2+x'
  '1/2-y,1/2+z,x'
  'x,-y,-z'
  'x,1/2-y,1/2-z'
  '1/2+x,-y,1/2-z'
  '1/2+x,1/2-y,-z'
  '-x,z,-y'
  '-x,1/2+z,1/2-y'
  '1/2-x,z,1/2-y'
  '1/2-x,1/2+z,-y'
  'z,-y,x'
  'z,1/2-y,1/2+x'
  '1/2+z,-y,1/2+x'
  '1/2+z,1/2-y,x'
  '-y,x,-z'
  '-y,1/2+x,1/2-z'
  '1/2-y,x,1/2-z'
  '1/2-y,1/2+x,-z'
  'x,-z,y'
  'x,1/2-z,1/2+y'
  '1/2+x,-z,1/2+y'
  '1/2+x,1/2-z,y'
  '-z,y,-x'
  '-z,1/2+y,1/2-x'
  '1/2-z,y,1/2-x'
  '1/2-z,1/2+y,-x'
  'y,-x,z'
  'y,1/2-x,1/2+z'
  '1/2+y,-x,1/2+z'
  '1/2+y,1/2-x,z'
  '-x,-z,y'
  '-x,1/2-z,1/2+y'
  '1/2-x,-z,1/2+y'
  '1/2-x,1/2-z,y'
  'z,y,-x'
  'z,1/2+y,1/2-x'
  '1/2+z,y,1/2-x'
  '1/2+z,1/2+y,-x'
  '-y,-x,z'
  '-y,1/2-x,1/2+z'
  '1/2-y,-x,1/2+z'
  '1/2-y,1/2-x,z'
  'x,z,-y'
  'x,1/2+z,1/2-y'
  '1/2+x,z,1/2-y'
  '1/2+x,1/2+z,-y'
  '-z,-y,x'
  '-z,1/2-y,1/2+x'
  '1/2-z,-y,1/2+x'
  '1/2-z,1/2-y,x'
  'y,x,-z'
  'y,1/2+x,1/2-z'
  '1/2+y,x,1/2-z'
  '1/2+y,1/2+x,-z'
  '-z,-x,-y'
  '-z,1/2-x,1/2-y'
  '1/2-z,-x,1/2-y'
  '1/2-z,1/2-x,-y'
  'y,z,x'
  'y,1/2+z,1/2+x'
  '1/2+y,z,1/2+x'
  '1/2+y,1/2+z,x'
  '-x,-y,-z'
  '-x,1/2-y,1/2-z'
  '1/2-x,-y,1/2-z'
  '1/2-x,1/2-y,-z'
  'z,x,y'
  'z,1/2+x,1/2+y'
  '1/2+z,x,1/2+y'
  '1/2+z,1/2+x,y'
  '-y,-z,-x'
  '-y,1/2-z,1/2-x'
  '1/2-y,-z,1/2-x'
  '1/2-y,1/2-z,-x'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Fe1   0.50000   0.50000   0.50000
Fe2   0.25000   0.25000   0.25000
Si   0.00000   0.00000   0.00000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.26 Å	(30)
2.83 Å	(30)
2.00 Å	(90)
1.706 Å	(20)
1.415 Å	(60)
1.156 Å	(100)
1.003 Å	(70)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 3a: Earth’s earliest Hadean crust	>4.50
7 : Ultramafic igneous rocks
Near-surface Processes
26 : Hadean detrital minerals

Type Occurrence of GupeiiteHide

Type Locality:

ⓘ Placer occurrences (Yanshan meteorite), Chengde, Hebei, China

General Appearance of Type Material:

Cores of spheres 0.1-0.5 mm in diameter.

Place of Conservation of Type Material:

Institute of Geology, Chinese Academy of Geological Sciences, Beijing, China.

Geological Setting of Type Material:

Found in a placer deposit, but thought to be of extraterrestrial origin.

Associated Minerals at Type Locality:

Wüstite	Taenite	Magnetite	Maghemite	Kamacite
Hongquiite	Gupeiite

Reference:

Yu, Z. (1984) Two new minerals gupeiite and xifengite in cosmic dusts from Yanshan. Acta Petrologica Mineralogica et Analytica: 3(3): 231-238.

Download:

http://rruff.info/rruff_1.0/uploads/YKCS3_231.pdf

Synonyms of GupeiiteHide

IMA1983-087

Other Language Names for GupeiiteHide

German:Gupeiit

Simplified Chinese:古北矿

Spanish:Gupeiita

Common AssociatesHide

Associated Minerals Based on Photo Data:

5 photos of Gupeiite associated with Xifengite	Fe₅Si₃
5 photos of Gupeiite associated with Naquite	FeSi

Related Minerals - Strunz-mindat Grouping Hide

1.BB.	Zangboite	TiFeSi₂	Orth. mmm (2/m 2/m 2/m) : Pbam
1.BB.	Brownleeite	MnSi	Iso. 2 3 : P2₁ 3
1.BB.	Kangjinlaite	Ti₁₁Si₁₀	Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
1.BB.	Toledoite	TiFeSi	Orth. mm2 : Ima2
1.BB.	Yeite	TiSi	Orth. mmm (2/m 2/m 2/m) : Pnma
1.BB.05	Suessite	(Fe,Ni)₃Si	Iso. m3m (4/m 3 2/m) : Im3m
1.BB.05	Mavlyanovite	Mn₅Si₃	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mcm
1.BB.10	UM2001-18-Si:CuPtSn	(Cu,Pt)₄Si
1.BB.10	Perryite	(Ni,Fe)₅(Si,P)₂	Trig. 3m : R3c
1.BB.15	Naquite	FeSi	Iso. 2 3 : P2₁ 3
1.BB.20	Linzhiite	FeSi₂	Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
1.BB.25	Luobusaite	Fe_0.84Si₂	Orth. mmm (2/m 2/m 2/m) : Cmca
1.BB.35	Hapkeite	Fe₂Si	Iso. m3m (4/m 3 2/m) : Pm3m
1.BB.40	Xifengite	Fe₅Si₃	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mcm
1.BB.45	Carletonmooreite	Ni₃Si	Iso. m3m (4/m 3 2/m) : Pm3m
1.BB.55	Palladosilicide	Pd₂Si	Hex. 6 m2 : P6₂m
1.BB.65	Zhiqinite	TiSi₂	Orth. mmm (2/m 2/m 2/m) : Fddd

Other InformationHide

Notes:

Strongly magnetic

Health Risks:

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

Internet Links for GupeiiteHide

mindat.org URL:

https://www.mindat.org/min-1780.html
Please feel free to link to this page.

Search Engines:

Look for Gupeiite on Google

Look for Gupeiite images on Google

Look for Gupeiite on Bing

Look for Gupeiite images on Bing

Look for Gupeiite on DuckDuckGo

Look for Gupeiite images on DuckDuckGo

Look for Gupeiite in the Rock H. Currier Digital Library

External Links:

Look for Gupeiite on Webmineral

Look for Gupeiite on Wikipedia

Look for Gupeiite on Mineralien Atlas

Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

Mineral Dealers:

Blue Gems Australian & International

The Arkenstone - Fine Minerals

Fine Minerals from Weinrich Minerals, Inc.

Buy from McDougall Minerals

High-end worldwide specimens & outstanding customer service

Buy from David K Joyce minerals

Buy rare minerals from Excalibur Minerals

Wilensky Exquisite Minerals

References for GupeiiteHide

Reference List:

Chemical Abstracts: 103.

Farquhar, M.C.M., Lipson, H., Weill, A.R. (1945) An X-ray study of iron-rich iron-silicon alloys. Journal of the Iron and Steel Institute: 152: 457-472.

Babanova, Y.N., Sidorenko, F.A., Gel'd, P.V., Basov, N.I. (1974) Ordering of solid solutions (Fe1-xMnx)3Si. Physics of Metals and Metallography: 38: 122-126.

Buschow, K.H.J., van Engen, P.G., Jongebreur, R. (1983) Magneto-optical properties of metallic ferromagnetic materials. Journal of Magnetism and Magnetic Materials: 38: 1-22.

Yu, Z. (1984) Two new minerals gupeiite and xifengite in cosmic dusts from Yanshan. Acta Petrologica Mineralogica et Analytica: 3(3): 231-238.

Kanematsu, K. (1986) Stability of crystal structure of (Fe,V)3M and (Fe,Ni)3M (M=Si, Ge, Sn) and its analysis based on rigid band model. Transactions of the Japan Institute of Metals: 27: 225-232.

Dunn, P.J., Chao, G.Y., Fitzpatrick, J.J., Langley, R.H., Fleischer, M., Zilczer, J.A. (1986) New mineral names. American Mineralogist: 71: 227-232.

(2023) Gupeiite. Handbook of Mineralogy. Mineralogical Society of America

Localities for GupeiiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed.

- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality.

- Good crystals or important locality for species.

- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). ~~Struck out~~ - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.


Bulgaria
Vidin Province Vidin Municipality Koshava ⓘ Koshava gypsum deposit	Rappenglück (2022)

China (TL)
Hebei Chengde ⓘ Placer occurrences (Yanshan meteorite) (TL)	Yu (1984)

Israel
Haifa District Mount Carmel ⓘ Rakefet magmatic complex	Griffin et al. (2016) +1 other reference

Poland
Lower Silesian Voivodeship Kłodzko County ⓘ Gmina Nowa Ruda ?	Kruszewski et al. (2014)
Nowa Ruda Piast Mine ⓘ Piast mine heap ?	Kruszewski et al. (2014)

Russia
Bashkortostan Ishimbaysky District ⓘ Utar-Yurt	Rappenglück (2022)
Sverdlovsk Oblast Nizhnyaya Tura ⓘ Is River	Pavel.M. Kartashov (n.d.) +1 other reference
Zabaykalsky Krai Tungokochensky District ⓘ Ilekta meteorite	Rappenglück (2022) +1 other reference

Tajikistan
Districts of Republican Subordination ⓘ Chinarsay volcano	Rappenglück (2022)

Ukraine
Donetsk Oblast Donetsk Zachativsk station ⓘ Poltava series	Steffen Möckel EDS analysis 2005

Uzbekistan
Tashkent Chatkal-Kuraminskii Range Arashan Mtn ⓘ Ir-Tash Stream Basin	Tony Nikischer EDS/SEM analysis

Gupeiite

About GupeiiteHide

Unique IdentifiersHide

IMA Classification of GupeiiteHide

Classification of GupeiiteHide

Mineral SymbolsHide

Physical Properties of GupeiiteHide

Optical Data of GupeiiteHide

Chemistry of GupeiiteHide

Crystallography of GupeiiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of GupeiiteHide

Synonyms of GupeiiteHide

Other Language Names for GupeiiteHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for GupeiiteHide

References for GupeiiteHide

Localities for GupeiiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide