Magnetite

Magnetite

Rubiana, Metropolitan City of Turin, Piedmont, Italy

Magnetite

Chaobuleng deposit, East Ujimqin Banner, Xilingol League, Inner Mongolia, China

Magnetite

Ischia di Castro, Viterbo Province, Lazio, Italy

Magnetite

Rubiana, Metropolitan City of Turin, Piedmont, Italy

Magnetite

Chaobuleng deposit, East Ujimqin Banner, Xilingol League, Inner Mongolia, China

Magnetite

Ischia di Castro, Viterbo Province, Lazio, Italy

Magnetite

Rubiana, Metropolitan City of Turin, Piedmont, Italy

Magnetite

Chaobuleng deposit, East Ujimqin Banner, Xilingol League, Inner Mongolia, China

About MagnetiteHide

Formula:

Fe²⁺Fe³⁺₂O₄

As a Commodity:

Iron - Magnetite

Colour:

Greyish black or iron black

Lustre:

Metallic, Sub-Metallic

Hardness:

5½ - 6½

Specific Gravity:

5.175

Crystal System:

Isometric

Member of:

Spinel Subgroup > Oxyspinel Group > Spinel Supergroup

Name:

Originally called lodestone as early as 1548 and by other names. Named in 1845 by Wilhelm Karl von Haidinger for the locality at Magnesia, Greece (site for lodestone).

Jacobsite-Magnetite Series. Magnesioferrite-Magnetite Series.

Magnetite is an important, strongly magnetic iron ore, along with hematite.

Nanoinclusions of magnetite crystals cause the iridescence of Rainbow obsidian (Nadin, 2007). Extremely thin layers of 200-nm octahedral crystals of magnetite give some basalt surfaces an iridescent sheen (Nadin, 2007).

May precipitate from supersaturated volcanic gas due to its cooling as shown in an experiment by Africano et al. (2002) (actually a predominant precipitate from ca. 850 down to 650^oC in this particular experiment).

Visit gemdat.org for gemological information about Magnetite.

Unique IdentifiersHide

IMA Classification of MagnetiteHide

Classification of MagnetiteHide

Mineral SymbolsHide

Physical Properties of MagnetiteHide

Optical Data of MagnetiteHide

Type:

Isotropic

RI values:

n = 2.42

Birefringence:

Isotropic minerals have no birefringence

Surface Relief:

Very High

Reflectivity:

Wavelength	R
400nm	22.3%
420nm	21.8%
440nm	21.3%
460nm	20.8%
480nm	20.5%
500nm	20.3%
520nm	20.3%
540nm	20.4%
560nm	20.5%
580nm	20.6%
600nm	20.6%
620nm	20.7%
640nm	20.8%
660nm	20.9%
680nm	21.0%
700nm	21.2%

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 22.3%.

Colour in reflected light:

Grey with brownish tint

Internal Reflections:

None

Pleochroism:

Non-pleochroic

Comments:

Twin lamellae and zonal growth pattern exhibited in polished section by magnetite at times.

Chemistry of MagnetiteHide

Crystallography of MagnetiteHide

Crystallographic forms of MagnetiteHide

Crystal Atlas:

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Magnetite no.3 - Goldschmidt (1913-1926)

Magnetite no.30 - Goldschmidt (1913-1926)

Magnetite no.37 - Goldschmidt (1913-1926)

Magnetite no.53 - Goldschmidt (1913-1926)

Magnetite no.91 - Goldschmidt (1913-1926)

Magnetite no.92 - Goldschmidt (1913-1926)

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

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0000945	Magnetite	Wechsler B A, Lindsley D H, Prewitt C T (1984) Crystal structure and cation distribution in titanomagnetites (Fe3-xTixO4) American Mineralogist 69 754-770		1984	synthetic	0	293
0002400	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		0	293
0002401	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		1.4	293
0002402	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		2.3	293
0002403	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		3.4	293
0002404	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		6.6	293
0002405	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		8.3	293
0002406	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		11.3	293
0002407	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		12.5	293
0002408	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		13.5	293
0002409	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		15.7	293
0002410	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		17.5	293
0002411	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		19.4	293
0002412	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		21.8	293
0002413	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		24.2	293
0002414	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		26.9	293
0002415	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure American Mineralogist 85 514-523		2000		30.3	293
0002416	Magnetite	Haavik C, Stolen S, Fjellvag H, Hanfland M, Hausermann D (2000) Equation of state of magnetite and its high-pressure modification: Thermodynamics of the Fe-O system at high pressure Sample at 40 GPa, CaTi2O4 structure type American Mineralogist 85 514-523		2000		0	293
0002762	Magnetite	Fjellvag H, Hauback B C, Vogt T, Stolen S (2002) Monoclinic nearly stoichiometric wustite at low temperatures American Mineralogist 87 347-349		2002		0	10
0002763	Magnetite	Fjellvag H, Hauback B C, Vogt T, Stolen S (2002) Monoclinic nearly stoichiometric wustite at low temperatures American Mineralogist 87 347-349		2002		0	8
0004815	Magnetite	Bosi F, Halenius U, Skogby H (2009) Crystal chemistry of the magnetite-ulvospinel series American Mineralogist 94 181-189		2009	synthetic	0	293
0004816	Magnetite	Bosi F, Halenius U, Skogby H (2009) Crystal chemistry of the magnetite-ulvospinel series American Mineralogist 94 181-189		2009	synthetic	0	293
0004817	Magnetite	Bosi F, Halenius U, Skogby H (2009) Crystal chemistry of the magnetite-ulvospinel series American Mineralogist 94 181-189		2009	synthetic	0	293
0004818	Magnetite	Bosi F, Halenius U, Skogby H (2009) Crystal chemistry of the magnetite-ulvospinel series American Mineralogist 94 181-189		2009	synthetic	0	293
0004819	Magnetite	Bosi F, Halenius U, Skogby H (2009) Crystal chemistry of the magnetite-ulvospinel series American Mineralogist 94 181-189		2009	synthetic	0	293
0004820	Magnetite	Bosi F, Halenius U, Skogby H (2009) Crystal chemistry of the magnetite-ulvospinel series American Mineralogist 94 181-189		2009	synthetic	0	293
0004821	Magnetite	Bosi F, Halenius U, Skogby H (2009) Crystal chemistry of the magnetite-ulvospinel series American Mineralogist 94 181-189		2009	synthetic	0	293
0005178	Magnetite	Stout M Z, Bayliss P (1980) Crystal structure of two ferrian ulvospinels from British Columbia The Canadian Mineralogist 18 339-341		1980	Aiyansh basalt lava flow, Nass River valley, British Columbia, Canada	0	293
0005179	Magnetite	Stout M Z, Bayliss P (1980) Crystal structure of two ferrian ulvospinels from British Columbia The Canadian Mineralogist 18 339-341		1980	Itcha Mountain hawaiite lava flow, central British Columbia, Canada	0	293
0007394	Magnetite	Finger L W, Hazen R M, Hofmeister A M (1986) High-pressure crystal chemistry of spinel (MgAl2O4) and magnetite (Fe3O4): comparisons with silicate spinels Physics and Chemistry of Minerals 13 215-220		1986		0.0001	293
0007395	Magnetite	Finger L W, Hazen R M, Hofmeister A M (1986) High-pressure crystal chemistry of spinel (MgAl2O4) and magnetite (Fe3O4): comparisons with silicate spinels Physics and Chemistry of Minerals 13 215-220		1986		1.3	293
0007396	Magnetite	Finger L W, Hazen R M, Hofmeister A M (1986) High-pressure crystal chemistry of spinel (MgAl2O4) and magnetite (Fe3O4): comparisons with silicate spinels Physics and Chemistry of Minerals 13 215-220		1986		2.6	293
0007397	Magnetite	Finger L W, Hazen R M, Hofmeister A M (1986) High-pressure crystal chemistry of spinel (MgAl2O4) and magnetite (Fe3O4): comparisons with silicate spinels Physics and Chemistry of Minerals 13 215-220		1986		3.9	293
0007398	Magnetite	Finger L W, Hazen R M, Hofmeister A M (1986) High-pressure crystal chemistry of spinel (MgAl2O4) and magnetite (Fe3O4): comparisons with silicate spinels Physics and Chemistry of Minerals 13 215-220		1986		4.5	293
0007418	Magnetite	Nakagiri N, Manghnani M H, Ming L C, Kimura S (1986) Crystal structure of magnetite under pressure Physics and Chemistry of Minerals 13 238-244		1986		0.0001	293
0007419	Magnetite	Nakagiri N, Manghnani M H, Ming L C, Kimura S (1986) Crystal structure of magnetite under pressure Physics and Chemistry of Minerals 13 238-244		1986		0.63	293
0007420	Magnetite	Nakagiri N, Manghnani M H, Ming L C, Kimura S (1986) Crystal structure of magnetite under pressure Physics and Chemistry of Minerals 13 238-244		1986		1.55	293
0007421	Magnetite	Nakagiri N, Manghnani M H, Ming L C, Kimura S (1986) Crystal structure of magnetite under pressure Physics and Chemistry of Minerals 13 238-244		1986		2.09	293
0007422	Magnetite	Nakagiri N, Manghnani M H, Ming L C, Kimura S (1986) Crystal structure of magnetite under pressure Physics and Chemistry of Minerals 13 238-244		1986		2.76	293
0007423	Magnetite	Nakagiri N, Manghnani M H, Ming L C, Kimura S (1986) Crystal structure of magnetite under pressure Physics and Chemistry of Minerals 13 238-244		1986		3.67	293
0007424	Magnetite	Nakagiri N, Manghnani M H, Ming L C, Kimura S (1986) Crystal structure of magnetite under pressure Physics and Chemistry of Minerals 13 238-244		1986		4.44	293
0007766	Magnetite	O'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-555		1994		0	293
0007771	Magnetite	O'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-555		1994		0	293
0007776	Magnetite	O'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-555		1994		0	293
0007781	Magnetite	O'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-555		1994		0	293
0007824	Magnetite	O'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-555		1994		0	293
0007829	Magnetite	O'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-555		1994		0	293
0007834	Magnetite	O'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-555		1994		0	293
0007847	Magnetite	O'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-555		1994		0	293
0009109	Magnetite	Gatta G D, Kantor I, Ballaran T B, Dubrovinsky L, McCammon C (2007) Effect of non-hydrostatic conditions on the elastic behaviour of magnetite: an in situ single-crystal X-ray diffraction study Physics and Chemistry of Minerals 34 627-635		2007	synthetic	0.0001	293
0009110	Magnetite	Gatta G D, Kantor I, Ballaran T B, Dubrovinsky L, McCammon C (2007) Effect of non-hydrostatic conditions on the elastic behaviour of magnetite: an in situ single-crystal X-ray diffraction study Physics and Chemistry of Minerals 34 627-635		2007	synthetic	4.99	293
0009111	Magnetite	Gatta G D, Kantor I, Ballaran T B, Dubrovinsky L, McCammon C (2007) Effect of non-hydrostatic conditions on the elastic behaviour of magnetite: an in situ single-crystal X-ray diffraction study Physics and Chemistry of Minerals 34 627-635		2007	synthetic	9.21	293
0009740	Magnetite	Fleet M E (1981) The structure of magnetite Acta Crystallographica B37 917-920		1981		0	293
0009994	Magnetite	Fleet M E (1984) The structure of magnetite: two annealed natural magnetites, Fe3.005O4 and Fe2.96Mg0.04O4 Acta Crystallographica C40 1491-1493		1984		0	293
0009995	Magnetite	Fleet M E (1984) The structure of magnetite: two annealed natural magnetites, Fe3.005O4 and Fe2.96Mg0.04O4 Acta Crystallographica C40 1491-1493		1984		0	293
0017295	Magnetite	Montoro V (1938) Miscibilita fra gli ossidi salini di ferro e di manganese _cod_database_code 1010369 Gazzetta Chimica Italiana 68 728-733		1938		0	293
0020586	Magnetite	Fleet M E (1986) The structure of magnetite: Symmetry of cubic spinels Journal of Solid State Chemistry 62 75-82		1986	Natural, not provided	0	293
0020587	Magnetite	Fleet M E (1986) The structure of magnetite: Symmetry of cubic spinels Journal of Solid State Chemistry 62 75-82		1986	Natural, not provided	0	293
0020588	Magnetite	Fleet M E (1986) The structure of magnetite: Symmetry of cubic spinels Journal of Solid State Chemistry 62 75-82		1986	Natural, not provided	0	293
0020589	Magnetite	Fleet M E (1986) The structure of magnetite: Symmetry of cubic spinels Journal of Solid State Chemistry 62 75-82		1986	Natural, not provided	0	293
0020590	Magnetite	Fleet M E (1986) The structure of magnetite: Symmetry of cubic spinels Journal of Solid State Chemistry 62 75-82		1986	Natural, not provided	0	293
0013895	Magnetite	Fjellvag H, Gronvold F, Stolen S, Hauback B C (1996) On the crystallographic and magnetic structures of nearly stoichiometric iron monoxide Journal of Solid State Chemistry 124 52-57		1996	synthetic	0	293
0013896	Magnetite	Fjellvag H, Gronvold F, Stolen S, Hauback B C (1996) On the crystallographic and magnetic structures of nearly stoichiometric iron monoxide Journal of Solid State Chemistry 124 52-57		1996	synthetic	0	293
0017938	Magnetite	Bragg W (1915) The Structure of Magnetite and the Spinels _cod_database_code 1011032 Nature (London) 95 561-561		1915		0	293
0017981	Magnetite	Claassen A (1926) The scattering power of oxygen and iron for X-Rays _cod_database_code 1011084 Proceedings of the Physical Society of London 38 482-487		1926		0	293

CIF Raw Data - click here to closedata_global _chemical_name_mineral 'Magnetite' loop_ _publ_author_name 'Wechsler B A' 'Lindsley D H' 'Prewitt C T' _journal_name_full 'American Mineralogist' _journal_volume 69 _journal_year 1984 _journal_page_first 754 _journal_page_last 770 _publ_section_title ; Crystal structure and cation distribution in titanomagnetites (Fe3-xTixO4) Note: Sample ID: MT100-1350 ; _database_code_amcsd 0000945 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Fe3 O4' _cell_length_a 8.3958 _cell_length_b 8.3958 _cell_length_c 8.3958 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 591.815 _exptl_crystal_density_diffrn 5.197 _symmetry_space_group_name_H-M 'F d 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' '3/4+z,1/2-x,1/4+y' '3/4+z,-x,3/4+y' '1/4+z,1/2-x,3/4+y' '1/4+z,-x,1/4+y' '3/4-y,1/2+z,1/4-x' '3/4-y,+z,3/4-x' '1/4-y,1/2+z,3/4-x' '1/4-y,+z,1/4-x' '3/4+x,1/2-y,1/4+z' '3/4+x,-y,3/4+z' '1/4+x,1/2-y,3/4+z' '1/4+x,-y,1/4+z' '3/4-z,1/2+x,1/4-y' '3/4-z,+x,3/4-y' '1/4-z,1/2+x,3/4-y' '1/4-z,+x,1/4-y' '3/4+y,1/2-z,1/4+x' '3/4+y,-z,3/4+x' '1/4+y,1/2-z,3/4+x' '1/4+y,-z,1/4+x' '3/4-x,1/2+y,1/4-z' '3/4-x,+y,3/4-z' '1/4-x,1/2+y,3/4-z' '1/4-x,+y,1/4-z' '1/2+x,3/4-z,1/4-y' '1/2+x,1/4-z,3/4-y' '+x,3/4-z,3/4-y' '+x,1/4-z,1/4-y' '1/2-z,3/4+y,1/4+x' '1/2-z,1/4+y,3/4+x' '-z,3/4+y,3/4+x' '-z,1/4+y,1/4+x' '1/2+y,3/4-x,1/4-z' '1/2+y,1/4-x,3/4-z' '+y,3/4-x,3/4-z' '+y,1/4-x,1/4-z' '1/2-x,3/4+z,1/4+y' '1/2-x,1/4+z,3/4+y' '-x,3/4+z,3/4+y' '-x,1/4+z,1/4+y' '1/2+z,3/4-y,1/4-x' '1/2+z,1/4-y,3/4-x' '+z,3/4-y,3/4-x' '+z,1/4-y,1/4-x' '1/2-y,3/4+x,1/4+z' '1/2-y,1/4+x,3/4+z' '-y,3/4+x,3/4+z' '-y,1/4+x,1/4+z' 'x,1/2+z,1/2+y' 'x,+z,+y' '1/2+x,1/2+z,+y' '1/2+x,+z,1/2+y' '-z,1/2-y,1/2-x' '-z,-y,-x' '1/2-z,1/2-y,-x' '1/2-z,-y,1/2-x' 'y,1/2+x,1/2+z' 'y,+x,+z' '1/2+y,1/2+x,+z' '1/2+y,+x,1/2+z' '-x,1/2-z,1/2-y' '-x,-z,-y' '1/2-x,1/2-z,-y' '1/2-x,-z,1/2-y' 'z,1/2+y,1/2+x' 'z,+y,+x' '1/2+z,1/2+y,+x' '1/2+z,+y,1/2+x' '-y,1/2-x,1/2-z' '-y,-x,-z' '1/2-y,1/2-x,-z' '1/2-y,-x,1/2-z' '3/4+z,1/4+x,1/2-y' '3/4+z,3/4+x,-y' '1/4+z,1/4+x,-y' '1/4+z,3/4+x,1/2-y' '3/4-y,1/4-z,1/2+x' '3/4-y,3/4-z,+x' '1/4-y,1/4-z,+x' '1/4-y,3/4-z,1/2+x' '3/4+x,1/4+y,1/2-z' '3/4+x,3/4+y,-z' '1/4+x,1/4+y,-z' '1/4+x,3/4+y,1/2-z' '3/4-z,1/4-x,1/2+y' '3/4-z,3/4-x,+y' '1/4-z,1/4-x,+y' '1/4-z,3/4-x,1/2+y' '3/4+y,1/4+z,1/2-x' '3/4+y,3/4+z,-x' '1/4+y,1/4+z,-x' '1/4+y,3/4+z,1/2-x' '3/4-x,1/4-y,1/2+z' '3/4-x,3/4-y,+z' '1/4-x,1/4-y,+z' '1/4-x,3/4-y,1/2+z' '-z,3/4+x,3/4+y' '-z,1/4+x,1/4+y' '1/2-z,3/4+x,1/4+y' '1/2-z,1/4+x,3/4+y' 'y,3/4-z,3/4-x' 'y,1/4-z,1/4-x' '1/2+y,3/4-z,1/4-x' '1/2+y,1/4-z,3/4-x' '-x,3/4+y,3/4+z' '-x,1/4+y,1/4+z' '1/2-x,3/4+y,1/4+z' '1/2-x,1/4+y,3/4+z' 'z,3/4-x,3/4-y' 'z,1/4-x,1/4-y' '1/2+z,3/4-x,1/4-y' '1/2+z,1/4-x,3/4-y' '-y,3/4+z,3/4+x' '-y,1/4+z,1/4+x' '1/2-y,3/4+z,1/4+x' '1/2-y,1/4+z,3/4+x' 'x,3/4-y,3/4-z' 'x,1/4-y,1/4-z' '1/2+x,3/4-y,1/4-z' '1/2+x,1/4-y,3/4-z' '1/4-x,1/2+z,3/4-y' '1/4-x,+z,1/4-y' '3/4-x,1/2+z,1/4-y' '3/4-x,+z,3/4-y' '1/4+z,1/2-y,3/4+x' '1/4+z,-y,1/4+x' '3/4+z,1/2-y,1/4+x' '3/4+z,-y,3/4+x' '1/4-y,1/2+x,3/4-z' '1/4-y,+x,1/4-z' '3/4-y,1/2+x,1/4-z' '3/4-y,+x,3/4-z' '1/4+x,1/2-z,3/4+y' '1/4+x,-z,1/4+y' '3/4+x,1/2-z,1/4+y' '3/4+x,-z,3/4+y' '1/4-z,1/2+y,3/4-x' '1/4-z,+y,1/4-x' '3/4-z,1/2+y,1/4-x' '3/4-z,+y,3/4-x' '1/4+y,1/2-x,3/4+z' '1/4+y,-x,1/4+z' '3/4+y,1/2-x,1/4+z' '3/4+y,-x,3/4+z' '3/4-x,3/4-z,y' '3/4-x,1/4-z,1/2+y' '1/4-x,3/4-z,1/2+y' '1/4-x,1/4-z,y' '3/4+z,3/4+y,-x' '3/4+z,1/4+y,1/2-x' '1/4+z,3/4+y,1/2-x' '1/4+z,1/4+y,-x' '3/4-y,3/4-x,z' '3/4-y,1/4-x,1/2+z' '1/4-y,3/4-x,1/2+z' '1/4-y,1/4-x,z' '3/4+x,3/4+z,-y' '3/4+x,1/4+z,1/2-y' '1/4+x,3/4+z,1/2-y' '1/4+x,1/4+z,-y' '3/4-z,3/4-y,x' '3/4-z,1/4-y,1/2+x' '1/4-z,3/4-y,1/2+x' '1/4-z,1/4-y,x' '3/4+y,3/4+x,-z' '3/4+y,1/4+x,1/2-z' '1/4+y,3/4+x,1/2-z' '1/4+y,1/4+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 _atom_site_U_iso_or_equiv FeA 0.12500 0.12500 0.12500 0.00469 FeB 0.50000 0.50000 0.50000 0.00595 O 0.25470 0.25470 0.25470 0.00811

Epitaxial Relationships of MagnetiteHide

X-Ray Powder DiffractionHide

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Radiation - Copper Kα

Data Set: Cerro Huañaquino, Potosi Department, Bolivia 2444

Data courtesy of RRUFF project at University of Arizona, used with permission.

Powder Diffraction Data:

d-spacing	Intensity
4.852 Å	(8)
2.967 Å	(30)
2.532 Å	(100)
2.4243 Å	(8)
2.0993 Å	(20)
1.7146 Å	(10)
1.6158 Å	(30)
1.4845 Å	(40)
1.4192 Å	(2)
1.3277 Å	(4)
1.2807 Å	(10)
1.2659 Å	(4)
1.2119 Å	(2)
1.1221 Å	(4)
1.0930 Å	(12)
1.0496 Å	(6)
0.9896 Å	(2)
0.9695 Å	(6)
0.9632 Å	(4)
0.9388 Å	(4)
0.8952 Å	(2)
0.8802 Å	(6)
0.8569 Å	(8)
0.8233 Å	(4)
0.8117 Å	(6)

Comments:

ICDD 19-629

Geological EnvironmentHide

Synonyms of MagnetiteHide

Other Language Names for MagnetiteHide

Varieties of MagnetiteHide

Relationship of Magnetite to other SpeciesHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Fluorescence of MagnetiteHide

Other InformationHide

Magnetite in petrologyHide

Internet Links for MagnetiteHide

References for MagnetiteHide

Significant localities for MagnetiteHide

Showing 17 significant localities out of 18,553 recorded on mindat.org.

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.

Australia
Tasmania Burnie City Hampshire mining district Kara Mines ⓘ Kara No. 1 Pit	Whitehead +3 other references
Canada
Ontario Hastings County Faraday Township ⓘ Bentley Lake occurrence (Madawaska mine property)	Ontario Ministry of Northern ... +2 other references
Québec Abitibi-Témiscamingue La Vallée-de-l'Or RCM Réservoir-Dozois ⓘ Cabonga Reservoir	Olivier Langelier Collection +1 other reference
France
Brittany Côtes-d'Armor Lannion Plestin-les-Grèves ⓘ Porz Mellec	Pierrot R. et al. (1975)
Italy
Piedmont Metropolitan City of Turin Traversella ⓘ Traversella Mine	Gruppo Mineralogico Lombardo (10) +1 other reference
Norway
Troms og Finnmark Kautokeino ⓘ Bidjovagge gold-copper deposit	[var: Vanodiochrome spinel] Mathiesen (1969)
Portugal
Leiria Nazaré Nazaré ⓘ Monte de São Bartolomeu	Collected by Rui Nunes in several ...
UK
Scotland Shetland Islands Mainland Point of Fethaland ⓘ Pundy Geo	[Specimen in the Natural History Museum
USA
Alaska Prince of Wales-Hyder Census Area Ketchikan Mining District Prince of Wales Island ⓘ Green Monster Mountain	Min Rec 35:5 pp383-404
Connecticut Middlesex County Haddam Higganum ⓘ Unnamed magnetite occurrences	Williams (circa 1945) +2 other references
ⓘ Magnetite locality	Schooner (circa 1985)
Massachusetts Middlesex County ⓘ Townsend	Dale (1910)
New Jersey Sussex County Ogdensburg Sterling Hill ⓘ Passaic pit (Marshall Mine; Passaic Mine)	Dunn (1995) +1 other reference
New York Putnam County Town of Southeast ⓘ Tilly Foster Iron Mine	- (Dana, 1874) +1 other reference
Pennsylvania Lebanon County Cornwall Borough (Cornwall) ⓘ Cornwall Mines (Cornwall Iron Mine)	Rocks & Min.: 13:213. +1 other reference
Rhode Island Providence County Providence Manton ⓘ Manton Avenue Quarry (Manton Quarry; Violet Hill Quarry)	Miller (1971)
Wisconsin Dodge County Iron Ridge Mining District (Neda Iron Mining District) Iron Ridge Mines ⓘ Iron Ridge Mine (Neda Mine; Oliver Mine)	Hawley (1934)
ⓘ Mayville Shaft Mine	Hawley (1934)