The mineral name ferrodimolybdenite is derived from its composition and structure: “ferro” refers to Fe2+, while “di+molybdenite” indicates the presence of two MoS2 layers.

Type Locality:

ⓘ Deynekoite type locality, Daba-Siwaqa complex, Transjordan Plateau, Amman Governorate, Jordan

Not unique in terms of chemical combination (compare maikainite).

Known synthetic analogue.

Hide all sections | Show all sections

Unique IdentifiersHide

Mindat ID:

470830

Long-form identifier:

mindat:1:1:470830:4

IMA Classification of FerrodimolybdeniteHide

IMA status:

Approved

IMA Formula:

Fe²⁺Mo³⁺₂S^2-₄

Approval year:

2023

Approval history:

IMA No. 2023-019

Type description reference:

Galuskin, Evgeny V.; Galuskina, Irina O.; Kusz, Joachim; Książek, Maria; Vapnik, Yevgeny; Zieliński, Grzegorz (2025) Ferrodimolybdenite, FeMo³⁺₂S₄ from Daba-Siwaqa, Jordan – the first natural compound of trivalent molybdenum. Mineralogical Magazine, 89 (2). 242-249 doi:10.1180/mgm.2024.82

Classification of FerrodimolybdeniteHide

Strunz-mindat (2026):

2.DA.

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
D : Metal Sulfides, M: S = 3 :4 and 2:3
A : M:S = 3:4

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 for Standard
Fdmol	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 FerrodimolybdeniteHide

Lustre:

Metallic

Transparency:

Opaque

Colour:

Grey

Streak:

dark grey

Hardness:

3 on Mohs scale

Tenacity:

Sectile

Cleavage:

Perfect
cleavage in three directions: perfect on {001}, good on {100} and poor on {010}

Fracture:

Conchoidal

Comment:

smooth

Density:

5.445 g/cm³ (Calculated)

Optical Data of FerrodimolybdeniteHide

Anisotropism:

strong

Reflectivity:

Wavelength	R₁ (%)	R₂ (%)
400nm	35.7%	34.2%
420nm	35.8%	34.3%
440nm	35.9%	34.3%
460nm	36.0%	34.4%
560nm	36.9%	35.1%
580nm	37.1%	35.7%
589nm	37.3%	35.9%
600nm	37.8%	36.0%

Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 37.8%.
R₁ shown in black, R₂ shown in red

Colour in reflected light:

grey to light grey with a bluish tinge

Internal Reflections:

none

Chemistry of FerrodimolybdeniteHide

Mindat Formula:

FeMo₂S₄

Element Weights:

Element	% weight
Mo	51.039 %
S	34.109 %
Fe	14.851 %

Calculated from ideal end-member formula.

Elements listed:

Fe, Mo, S - search for minerals with similar chemistry

Crystallography of FerrodimolybdeniteHide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Space Group:

B2/b

Setting:

C2/c

Cell Parameters:

a = 11.8249(8) Å, b = 6.5534(3) Å, c = 13.005(1) Å
β = 114.479(9)°

Ratio:

a:b:c = 1.804 : 1 : 1.984

Unit Cell V:

917.21 Å³ (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
5.918 Å	(100)
5.194 Å	(42)
2.865 Å	(47)
2.601 Å	(65)
2.597 Å	(33)
2.081 Å	(54)
2.046 Å	(25)
2.037 Å	(57)

Locality:

Deynekoite type locality, Daba-Siwaqa complex, Transjordan Plateau, Amman Governorate, Jordan

Reference:

Type Occurrence of FerrodimolybdeniteHide

Type Locality:

ⓘ Deynekoite type locality, Daba-Siwaqa complex, Transjordan Plateau, Amman Governorate, Jordan

General Appearance of Type Material:

platy crystals with dimensions ranging from 3×100 µm to 20×40 µm.

Place of Conservation of Type Material:

collections of the Fersman Mineralogical Museum, Russian
Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 115162, Russia, registration number 6005/1

Geological Setting of Type Material:

was discovered in a differentiated sulfide nodule composed of troilite and pentlandite parts. The nodule was detected in the central zone of a diopside-anorthite-tridymite oval paralava body, approximately 30 metres in diameter, within the pyrometamorphic Hatrurim Complex in Daba-Siwaqa, Jordan.

Associated Minerals at Type Locality:

Galena	Molybdenite	Nickelphosphide	Pentlandite	Rudashevskyite
Tetrataenite	Troilite

Reference:

Other Language Names for FerrodimolybdeniteHide

Dutch:Ferrodimolybdeniet

German:Ferrodimolybdenit

Related Minerals - Strunz-mindat Grouping Hide

2.DA.	Zaykovite	Rh₃Se₄	Mon. 2/m : B2/m
2.DA.	Ezochiite	Cu⁺(Rh³⁺Pt⁴⁺)S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.	Grimmite	NiCo₂S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.	Zolenskyite	FeCr₂S₄	Mon. 2/m : B2/m
2.DA.05	Shiranuiite	Cu⁺(Rh³⁺Rh⁴⁺)S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Fletcherite	CuNi₂S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Florensovite	(Cu,Zn)Cr_1.5Sb_0.5S₄	Iso. m3m(4/m32/m)
2.DA.05	Siegenite	CoNi₂S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Cadmoindite	CdIn₂S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Kalininite	ZnCr₂S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Violarite	Fe²⁺Ni³⁺₂S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Nickeltyrrellite	CuNi₂Se₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Linnaeite	Co²⁺Co³⁺₂S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Carrollite	CuCo₂S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Cuproiridsite	(Cu,Fe)Ir₂S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Cuprorhodsite	(Cu⁺_0.5Fe³⁺_0.5)Rh³⁺₂S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Berndlehmannite	Cu(CrV)S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Polydymite	Ni²⁺Ni³⁺₂S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Trüstedtite	Ni₃Se₄	Iso.
2.DA.05	Daubréelite	Fe²⁺Cr³⁺₂S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Cuprokalininite	Cu(Cr³⁺Cr⁴⁺)S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Greigite	Fe²⁺Fe³⁺₂S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Joegoldsteinite	MnCr₂S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Bornhardtite	Co²⁺Co³⁺₂Se₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Tyrrellite	Cu(Co,Ni)₂Se₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Indite	FeIn₂S₄	Iso. m3m(4/m32/m) : Fd3m
2.DA.05	Xingzhongite	Pb²⁺Ir³⁺₂S₄	Iso.
2.DA.05	Malanite	Cu⁺(Ir³⁺Pt⁴⁺)S₄	Iso. m3m(4/m32/m)
2.DA.10	Rhodostannite	Cu⁺(Fe²⁺_0.5Sn⁴⁺_1.5)S₄	Tet. 4/m : I4₁/a
2.DA.10	Toyohaite	Ag⁺(Fe²⁺_0.5Sn⁴⁺_1.5)S₄	Tet. 4/m : I4₁/a
2.DA.15	Brezinaite	Cr₃S₄	Mon. 2/m
2.DA.15	Heideite	(Fe,Cr)_1.15(Ti,Fe)₂S₄	Mon. 2/m
2.DA.20	Konderite	Cu₃Pb(Rh,Pt,Ir)₈S₁₆	Hex. 6/m : P6/m
2.DA.20	Inaglyite	Cu₃Pb(Ir,Pt)₈S₁₆	Hex.
2.DA.25	Kingstonite	Rh₃S₄	Mon. 2/m : B2/m

Other InformationHide

Notes:

The mineral is slightly 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 FerrodimolybdeniteHide

mindat.org URL:

https://www.mindat.org/min-470830.html
Please feel free to link to this page.

Search Engines:

Look for Ferrodimolybdenite on Google

Look for Ferrodimolybdenite images on Google

Look for Ferrodimolybdenite on Bing

Look for Ferrodimolybdenite images on Bing

Look for Ferrodimolybdenite on DuckDuckGo

Look for Ferrodimolybdenite images on DuckDuckGo

Look for Ferrodimolybdenite in the Rock H. Currier Digital Library

External Links:

Look for Ferrodimolybdenite on Webmineral

Look for Ferrodimolybdenite on Wikipedia

Look for Ferrodimolybdenite on Mineralien Atlas

Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Mineral Dealers:

Buy from D. Joyce minerals

References for FerrodimolybdeniteHide

Reference List:

Bosi, Ferdinando; Hatert, Frédéric; Pasero, Marco; Mills, Stuart J. (2023) Newsletter 74. Mineralogical Magazine, 87 (5). 783-787 doi:10.1180/mgm.2023.54

Localities for FerrodimolybdeniteHide

Showing 1 localities.

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.

Hide all sections | Show all sections

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.

Jordan (TL)

Amman Governorate

Transjordan Plateau

Daba-Siwaqa complex

ⓘ Deynekoite type locality (TL)

Galuskin et al. (2024) +1 other reference

Quick NavTop Unique Identifiers IMA Classification Classification Mineral Symbols Physical Properties Optical Data Chemistry Crystallography X-Ray Powder Diffraction Type Occurrence Other Languages Strunz-Mindat Other Information Internet Links References Localities Locality List

Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 1, 2026 16:29:12 Page updated: August 19, 2026 01:50:14

Go to top of page

Ferrodimolybdenite