Reznitsky, L.Z., Sklyarov, E.V., Ushchapovskaya, Z.F., Suvorova, L.F., Polekhovsky, Yu.S., Dzerzanovsky, P., Barash, I.G. (2010) Cuprokalininite CuCr2S4 - the new sulfospinel from metamorphic rocks of Sludyanka Complex (South Baikal Region). [Zapiski Rossiyskogo Mineralogicheskogo Obshchestva], 139 (6) 39-49

Classification of CuprokalininiteHide

Strunz-mindat (2026):

2.DA.05

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

Dana 8th ed.:

2.10.1.20

2 : SULFIDES
10 : A_mB_nX_p, with (m+n):p = 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
Ckal	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 CuprokalininiteHide

Lustre:

Sub-Metallic

Comment:

Close to metallic

Colour:

Black

Comment:

with a weak dark bronze tint

Streak:

Black

Hardness:

4½ - 5 on Mohs scale

Hardness:

VHN₂₀=356 - 458 kg/mm² - Vickers

Comment:

Mohs hardness was estimated from VHN.

Tenacity:

Very brittle

Cleavage:

None Observed

Fracture:

Irregular/Uneven

Density:

4.16 g/cm³ (Calculated)

Optical Data of CuprokalininiteHide

Reflectivity:

Wavelength	R₁ (%)
400nm	34.30%
420nm	34.10%
440nm	33.90%
460nm	33.70%
480nm	33.50%
500nm	33.20%
520nm	33.00%
540nm	32.80%
560nm	32.50%
580nm	32.20%
600nm	31.90%
620nm	31.60%
640nm	31.20%
660nm	30.90%
680nm	30.60%
700nm	30.40%

Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 34.30%.

Colour in reflected light:

Pale cream

Internal Reflections:

None observed

Chemistry of CuprokalininiteHide

Mindat Formula:

Cu(Cr³⁺Cr⁴⁺)S₄

Also given as CuCr₂S₄.

Element Weights:

Element	% weight
S	43.361 %
Cr	35.157 %
Cu	21.483 %

Calculated from ideal end-member formula.

Elements listed:

Cr, Cu, S - search for minerals with similar chemistry

Common Impurities:

V,Fe,Zn

Crystallography of CuprokalininiteHide

Crystal System:

Isometric

Class (H-M):

m3m(4/m32/m) - Hexoctahedral

Space Group:

Fd3m

Cell Parameters:

a = 9.814(2) Å

Unit Cell V:

945.2 Å³

Morphology:

Dominant forms are {111} and {100} with distinct growth steps.

Twinning:

Polysynthetic twins on {111} are typical. Occasionally, simple twinning by the spinel law is identified.

Crystal StructureHide

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

ID	Species	Reference	Year	Locality	Temp (K)
0013450	Cuprokalininite	Riedel E, Karl R, Rackwitz R (1981) Mossbauer studies of thiospinels. V. The systems Cu1-xFexMe2S4 (Me=Cr,Rh) and Cu1-xFexCr2(S.7Se.3)4 Journal of Solid State Chemistry 40 255-265	1981	synthetic	293
0013449	Cuprokalininite	Riedel E, Karl R, Rackwitz R (1981) Mossbauer studies of thiospinels. V. The systems Cu1-xFexMe2S4 (Me=Cr,Rh) and Cu1-xFexCr2(S.7Se.3)4 Journal of Solid State Chemistry 40 255-265	1981	synthetic	293
0013448	Cuprokalininite	Riedel E, Karl R, Rackwitz R (1981) Mossbauer studies of thiospinels. V. The systems Cu1-xFexMe2S4 (Me=Cr,Rh) and Cu1-xFexCr2(S.7Se.3)4 Journal of Solid State Chemistry 40 255-265	1981	synthetic	293
0013447	Cuprokalininite	Riedel E, Karl R, Rackwitz R (1981) Mossbauer studies of thiospinels. V. The systems Cu1-xFexMe2S4 (Me=Cr,Rh) and Cu1-xFexCr2(S.7Se.3)4 Journal of Solid State Chemistry 40 255-265	1981	synthetic	293
0013446	Cuprokalininite	Riedel E, Karl R, Rackwitz R (1981) Mossbauer studies of thiospinels. V. The systems Cu1-xFexMe2S4 (Me=Cr,Rh) and Cu1-xFexCr2(S.7Se.3)4 Journal of Solid State Chemistry 40 255-265	1981	synthetic	293
0013445	Cuprokalininite	Riedel E, Karl R, Rackwitz R (1981) Mossbauer studies of thiospinels. V. The systems Cu1-xFexMe2S4 (Me=Cr,Rh) and Cu1-xFexCr2(S.7Se.3)4 Journal of Solid State Chemistry 40 255-265	1981	synthetic	293
0013444	Cuprokalininite	Riedel E, Karl R, Rackwitz R (1981) Mossbauer studies of thiospinels. V. The systems Cu1-xFexMe2S4 (Me=Cr,Rh) and Cu1-xFexCr2(S.7Se.3)4 Journal of Solid State Chemistry 40 255-265	1981	synthetic	293
0013425	Cuprokalininite	Riedel E, Karl R, Rackwitz R (1981) Mossbauer studies of thiospinels. V. The systems Cu1-xFexMe2S4 (Me=Cr,Rh) and Cu1-xFexCr2(S.7Se.3)4 Journal of Solid State Chemistry 40 255-265	1981	synthetic	293
0013424	Cuprokalininite	Riedel E, Karl R, Rackwitz R (1981) Mossbauer studies of thiospinels. V. The systems Cu1-xFexMe2S4 (Me=Cr,Rh) and Cu1-xFexCr2(S.7Se.3)4 Journal of Solid State Chemistry 40 255-265	1981	synthetic	293
0013423	Cuprokalininite	Riedel E, Karl R, Rackwitz R (1981) Mossbauer studies of thiospinels. V. The systems Cu1-xFexMe2S4 (Me=Cr,Rh) and Cu1-xFexCr2(S.7Se.3)4 Journal of Solid State Chemistry 40 255-265	1981	synthetic	293
0013422	Cuprokalininite	Riedel E, Karl R, Rackwitz R (1981) Mossbauer studies of thiospinels. V. The systems Cu1-xFexMe2S4 (Me=Cr,Rh) and Cu1-xFexCr2(S.7Se.3)4 Journal of Solid State Chemistry 40 255-265	1981	synthetic	293
0012907	Cuprokalininite	Raccah P M, Bouchard R J, Wold A (1966) Crystallographic study of chromium spinels Journal of Applied Physics 37 1436-1437	1966	synthetic	293
0018335	Cuprokalininite	Riedel E, Horvath E (1973) Spinelle mit substituierten Nichtmetallteilgittern. IV. Roentgenographische Untersuchung der Systeme CuCr2(S11-xSex)4 und CuCr3(Se1-xTex)4 Zeitschrift fur Anorganische und Allgemeine Chemie 399 219-224	1973		293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Cuprokalininite'
loop_
_publ_author_name
'Riedel E'
'Karl R'
'Rackwitz R'
_journal_name_full 'Journal of Solid State Chemistry'
_journal_volume 40 
_journal_year 1981
_journal_page_first 255
_journal_page_last 265
_publ_section_title
;
 Mossbauer studies of thiospinels. V. The systems Cu1-xFexMe2S4  (Me=Cr,Rh) and
 Cu1-xFexCr2(S.7Se.3)4
;
_database_code_amcsd 0013450
_chemical_compound_source 'Synthetic'
_chemical_formula_sum '(Cu.5 Fe.5) Cr2 (S2.8 Se1.2)'
_cell_length_a 10.052
_cell_length_b 10.052
_cell_length_c 10.052
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1015.681
_exptl_crystal_density_diffrn      4.555
_symmetry_space_group_name_H-M 'F d 3 m'
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  '3/4-x,1/4-z,3/4-y'
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  '1/4-y,1/4-x,1/4-z'
  '3/4-y,3/4-x,1/4-z'
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  '1/4+x,3/4+y,3/4-z'
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  '3/4+y,1/4-x,3/4+z'
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  '1/4-y,1/4-z,1/4-x'
  '1/4-y,3/4-z,3/4-x'
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loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Cu   0.00000   0.00000   0.00000   0.50000
Fe   0.00000   0.00000   0.00000   0.50000
Cr   0.62500   0.62500   0.62500   1.00000
S   0.38300   0.38300   0.38300   0.70000
Se   0.38300   0.38300   0.38300   0.30000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.44 Å	(6)
2.94 Å	(10)
2.44 Å	(6)
1.884 Å	(9)
1.731 Å	(10)
1.133 Å	(6)
1.098 Å	(6)
1.030 Å	(6)
1.002 Å	(10)

Locality:

Pereval marble quarry, Slyudyanka, Slyudyansky District, Irkutsk Oblast, Russia

Reference:

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 5: Initiation of plate tectonics	<3.5-2.5
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)

Type Occurrence of CuprokalininiteHide

Type Locality:

ⓘ Pereval marble quarry, Slyudyanka, Slyudyansky District, Irkutsk Oblast, Russia

General Appearance of Type Material:

Euhedral octahedral or cubo-octahedral microcrystals up to 0.2 mm in size.

Place of Conservation of Type Material:

Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, catalog no. 3886/1-3

Geological Setting of Type Material:

In a Cr-V-bearing quartz-diopside metamorphic rock.

Associated Minerals at Type Locality:

Calcite	'Chromdravite'	Diopside	Dravite	Eskolaite
Goldmanite	Karelianite	Kosmochlor	Mica Group	Plagioclase
Pyrite	Quartz	Titanite	Tremolite	Uvarovite

Reference:

Synonyms of CuprokalininiteHide

IMA2010-008

Other Language Names for CuprokalininiteHide

Dutch:Cuprokalininiet

German:Cuprokalininit

Relationship of Cuprokalininite to other SpeciesHide

Member of:

Carrollite Subgroup > Thiospinel Group > Spinel Supergroup

Other Members of Carrollite Subgroup:

Berndlehmannite	Cu(CrV)S₄	Iso. m3m(4/m32/m) : Fd3m
Carrollite	CuCo₂S₄	Iso. m3m(4/m32/m) : Fd3m
Cuproiridsite	(Cu,Fe)Ir₂S₄	Iso. m3m(4/m32/m) : Fd3m
Ezochiite	Cu⁺(Rh³⁺Pt⁴⁺)S₄	Iso. m3m(4/m32/m) : Fd3m
Fletcherite	CuNi₂S₄	Iso. m3m(4/m32/m) : Fd3m
Florensovite	(Cu,Zn)Cr_1.5Sb_0.5S₄	Iso. m3m(4/m32/m)
Malanite	Cu⁺(Ir³⁺Pt⁴⁺)S₄	Iso. m3m(4/m32/m)
Rhodostannite	Cu⁺(Fe²⁺_0.5Sn⁴⁺_1.5)S₄	Tet. 4/m : I4₁/a
Shiranuiite	Cu⁺(Rh³⁺Rh⁴⁺)S₄	Iso. m3m(4/m32/m) : Fd3m
Toyohaite	Ag⁺(Fe²⁺_0.5Sn⁴⁺_1.5)S₄	Tet. 4/m : I4₁/a
'Unnamed (Fe3+-analogue of Fletcherite)'	Cu(Fe³⁺,Ni,Co)₂S₄

Related Minerals - Strunz-mindat Grouping Hide

2.DA.	Ferrodimolybdenite	FeMo₂S₄	Mon. 2/m : B2/b
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. m3m(4/m32/m) : Fd3m
2.DA.05	Daubréelite	Fe²⁺Cr³⁺₂S₄	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 : B2/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:

Insoluble in HCl.

Health Risks:

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

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References for CuprokalininiteHide

Reference List:

Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2010) New minerals and nomenclature modifications approved in 2010. CNMNC Newsletter No 3. Mineralogical Magazine, 74 (3) 577-579 doi:10.1180/s0026461x00054979

Reznitsky, L. Z., Sklyarov, E. V., Ushchapovskaya, Z. F., Suvorova, L. F., Polekhovsky, Yu. S., Dzerzanovsky, P., Barash, I. G. (2011) Cuprokalininite, CuCr2S4, a new sulfospinel from metamorphic rocks of the Sludyanka Complex, South Baikal region. Geology of Ore Deposits, 53 (8) 758-766 doi:10.1134/s1075701511080137

(2014) Cuprokalininite. Handbook of Mineralogy. Mineralogical Society of America

Localities for CuprokalininiteHide

Showing 2 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the

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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.


China
Shaanxi Shangluo Shanyang County ⓘ Zhongcun V deposit	Fu et al. (2025)

Russia (TL)
Irkutsk Oblast Slyudyansky District Slyudyanka ⓘ Pereval marble quarry (TL)	Williams et al. (2010) +1 other reference

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Cuprokalininite

Unique IdentifiersHide

IMA Classification of CuprokalininiteHide

Classification of CuprokalininiteHide

Mineral SymbolsHide

Physical Properties of CuprokalininiteHide

Optical Data of CuprokalininiteHide

Chemistry of CuprokalininiteHide

Crystallography of CuprokalininiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of CuprokalininiteHide

Synonyms of CuprokalininiteHide

Other Language Names for CuprokalininiteHide

Relationship of Cuprokalininite to other SpeciesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

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References for CuprokalininiteHide

Localities for CuprokalininiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide