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Chukhrovite-(Y)

A valid IMA mineral species

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Photos of Chukhrovite-(Y) (9)

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Chukhrovite-(Y)

Uranus Mine, Kleinrückerswalde, Annaberg-Buchholz, Erzgebirgskreis, Saxony, Germany

Chukhrovite-(Y)

Uranus Mine, Kleinrückerswalde, Annaberg-Buchholz, Erzgebirgskreis, Saxony, Germany

Chukhrovite-(Y)

Uranus Mine, Kleinrückerswalde, Annaberg-Buchholz, Erzgebirgskreis, Saxony, Germany

Chukhrovite-(Y)

Uranus Mine, Kleinrückerswalde, Annaberg-Buchholz, Erzgebirgskreis, Saxony, Germany

Chukhrovite-(Y)

Uranus Mine, Kleinrückerswalde, Annaberg-Buchholz, Erzgebirgskreis, Saxony, Germany

Chukhrovite-(Y)

Uranus Mine, Kleinrückerswalde, Annaberg-Buchholz, Erzgebirgskreis, Saxony, Germany

Chukhrovite-(Y)

Uranus Mine, Kleinrückerswalde, Annaberg-Buchholz, Erzgebirgskreis, Saxony, Germany

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About Chukhrovite-(Y)Hide

Russian mineralogist and geochemist Fedor Vasil’evich Chukhrov.

Formula:

Ca₃(Y,Ce)(AlF₆)₂(SO₄)F · 10H₂O

Colour:

White, colourless

Lustre:

Vitreous, Greasy, Pearly

Hardness:

Specific Gravity:

2.274 - 2.398

Crystal System:

Isometric

Member of:

Chukhrovite Group

Name:

Originally named simply chukhrovite in 1960 by L. P. Ermilova, V. A. Moleva, and R. F. Klevtsova in honor of Fedor Vasil’evich Chukhrov (1908-1988). He published much research on the oxidation zone of the type locality. The suffix/modifier was added in 1987, according to the Levinson rule for species with essential REE, to indicate in this case, the predominance of yttrium and to distinguish it from chukhrovite-(Ce).

Type Locality:

ⓘ Kara-Oba W deposit, Moiynkum District, Jambyl Region, Kazakhstan

This page provides mineralogical data about Chukhrovite-(Y).

Unique IdentifiersHide

Mindat ID:

1045

Long-form identifier:

mindat:1:1:1045:6

GUID
(UUID V4):

80d2d3e5-b05c-433b-8d78-5a7d739ea620

IMA Classification of Chukhrovite-(Y)Hide

IMA status:

Approved

IMA Formula:

Ca₃YAl₂(SO₄)F₁₃ · 12H₂O

First published:

1960

Classification of Chukhrovite-(Y)Hide

Strunz-mindat (2024):

3.CG.10

3 : HALIDES
C : Complex halides
G : Aluminofluorides with CO₃, SO₄, PO₄

Dana 8th ed.:

12.1.5.1

12 : COMPOUND HALIDES
1 : Miscellaneous

Hey's CIM Ref.:

26.20

26 : Sulphates with Halide

Mineral SymbolsHide

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

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Symbol	Source	Reference
Chk-Y	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Chk	The Canadian Mineralogist (2019)	The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of Chukhrovite-(Y)Hide

Lustre:

Vitreous, Greasy, Pearly

Transparency:

Translucent

Comment:

Vitreous when transparent, weakly pearly when white, greasy on fracture surfaces.

Colour:

White, colourless

Comment:

White due to numerous fluid inclusions.

Streak:

White

Hardness:

3 on Mohs scale

Tenacity:

Brittle

Cleavage:

Poor/Indistinct
Octahedral, {111}.

Fracture:

Irregular/Uneven

Density:

2.274 - 2.398 g/cm³ (Measured)

Optical Data of Chukhrovite-(Y)Hide

Type:

Isotropic

RI values:

n = 1.440 - 1.442

Birefringence:

Isotropic minerals have no birefringence

Surface Relief:

Moderate

Comments:

Anomalously birefringent.

Chemistry of Chukhrovite-(Y)Hide

Mindat Formula:

Ca₃(Y,Ce)(AlF₆)₂(SO₄)F · 10H₂O

Elements listed:

Al, Ca, Ce, F, H, O, S, Y - search for minerals with similar chemistry

Crystallography of Chukhrovite-(Y)Hide

Crystal System:

Isometric

Class (H-M):

m3 (2/m 3) - Diploidal

Space Group:

Fd3

Setting:

Fd3

Cell Parameters:

a = 16.710 Å

Unit Cell V:

4,665.83 Å³ (Calculated from Unit Cell)

Morphology:

A combination of cube and octahedral forms in varying proportions.

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	Link	Year	Locality	Pressure (GPa)	Temp (K)
0012445	Chukhrovite-(Y)	Bokiy G B, Gorogotskaya L I (1965) The crystal structure of chukrovite Doklady Akademii Nauk SSSR 163 92-94		1965	Central Kazakhstan	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Chukhrovite-(Y)'
loop_
_publ_author_name
'Bokiy G B'
'Gorogotskaya L I'
_journal_name_full 'Doklady Akademii Nauk SSSR'
_journal_volume 163 
_journal_year 1965
_journal_page_first 92
_journal_page_last 94
_publ_section_title
;
 The crystal structure of chukrovite
;
_database_code_amcsd 0012445
_chemical_compound_source 'Central Kazakhstan'
_chemical_formula_sum '(Ca3 Y) Al2 S O15.004 F12.996 H22.008'
_cell_length_a 16.80
_cell_length_b 16.80
_cell_length_c 16.80
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 4741.631
_exptl_crystal_density_diffrn      2.253
_symmetry_space_group_name_H-M 'F d 3'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2+y,1/2+z'
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  '1/4+z,3/4+x,3/4-y'
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  '1/4+z,1/4-x,1/4+y'
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  '3/4+z,1/4-x,3/4+y'
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  '1/4-z,1/4+x,1/4+y'
  '1/4-z,3/4+x,3/4+y'
  '3/4-z,1/4+x,3/4+y'
  '3/4-z,3/4+x,1/4+y'
  '1/4-z,1/4-x,1/4-y'
  '1/4-z,3/4-x,3/4-y'
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  '3/4-z,3/4-x,1/4-y'
  'y,-z,-x'
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  '1/2+y,1/2-z,-x'
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  '1/2-y,-z,1/2+x'
  '1/2-y,1/2-z,x'
  '-y,z,-x'
  '-y,1/2+z,1/2-x'
  '1/2-y,z,1/2-x'
  '1/2-y,1/2+z,-x'
  'y,z,x'
  'y,1/2+z,1/2+x'
  '1/2+y,z,1/2+x'
  '1/2+y,1/2+z,x'
  '1/4+x,1/4-y,1/4+z'
  '1/4+x,3/4-y,3/4+z'
  '3/4+x,1/4-y,3/4+z'
  '3/4+x,3/4-y,1/4+z'
  '1/4-x,1/4+y,1/4+z'
  '1/4-x,3/4+y,3/4+z'
  '3/4-x,1/4+y,3/4+z'
  '3/4-x,3/4+y,1/4+z'
  '1/4+x,1/4+y,1/4-z'
  '1/4+x,3/4+y,3/4-z'
  '3/4+x,1/4+y,3/4-z'
  '3/4+x,3/4+y,1/4-z'
  '1/4-x,1/4-y,1/4-z'
  '1/4-x,3/4-y,3/4-z'
  '3/4-x,1/4-y,3/4-z'
  '3/4-x,3/4-y,1/4-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'
  '-z,x,-y'
  '-z,1/2+x,1/2-y'
  '1/2-z,x,1/2-y'
  '1/2-z,1/2+x,-y'
  'z,-x,-y'
  'z,1/2-x,1/2-y'
  '1/2+z,-x,1/2-y'
  '1/2+z,1/2-x,-y'
  'z,x,y'
  'z,1/2+x,1/2+y'
  '1/2+z,x,1/2+y'
  '1/2+z,1/2+x,y'
  '1/4-y,1/4+z,1/4+x'
  '1/4-y,3/4+z,3/4+x'
  '3/4-y,1/4+z,3/4+x'
  '3/4-y,3/4+z,1/4+x'
  '1/4+y,1/4+z,1/4-x'
  '1/4+y,3/4+z,3/4-x'
  '3/4+y,1/4+z,3/4-x'
  '3/4+y,3/4+z,1/4-x'
  '1/4+y,1/4-z,1/4+x'
  '1/4+y,3/4-z,3/4+x'
  '3/4+y,1/4-z,3/4+x'
  '3/4+y,3/4-z,1/4+x'
  '1/4-y,1/4-z,1/4-x'
  '1/4-y,3/4-z,3/4-x'
  '3/4-y,1/4-z,3/4-x'
  '3/4-y,3/4-z,1/4-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,-y,-z'
  'x,1/2-y,1/2-z'
  '1/2+x,-y,1/2-z'
  '1/2+x,1/2-y,-z'
  '-x,-y,z'
  '-x,1/2-y,1/2+z'
  '1/2-x,-y,1/2+z'
  '1/2-x,1/2-y,z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Ca   0.08300   0.08300   0.41700   0.75000
Y   0.08300   0.08300   0.41700   0.25000
Al   0.12500   0.12500   0.62500   1.00000
S   0.00000   0.00000   0.00000   1.00000
O   0.04900   0.04900   0.95100   1.00000
F   0.07500   0.03200   0.65600   1.00000
Wat   0.06600   0.13400   0.27900   0.91700
Fw   0.06600   0.13400   0.27900   0.08300

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.26 Å	(90)
2.84 Å	(80)
2.57 Å	(90)
2.25 Å	(90)
2.19 Å	(100)
1.83 Å	(100)
1.68 Å	(80)
1.51 Å	(80)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 7: Great Oxidation Event	<2.4
46 : Near-surface hydrothermal alteration of minerals (see also #22)
47a : [Near-surface hydration of prior minerals]
47b : [Sulfates and sulfites]
47g : [Halogen-bearing surface weathering minerals]

Type Occurrence of Chukhrovite-(Y)Hide

Type Locality:

ⓘ Kara-Oba W deposit, Moiynkum District, Jambyl Region, Kazakhstan

General Appearance of Type Material:

Crystals ranging from less than 0.5 mm to 1 cm in size.

Place of Conservation of Type Material:

National Museum of Natural History, Washington, D.C., USA, number 144183 (type).
Fersman Mineralogical Museum, Moscow, Russia, number 61518-19 (type).
Vernadsky State Geological Museum, Moscow, Russia, number 46354 (type).

Geological Setting of Type Material:

Oxidation zone of a molybdenum-tungsten deposit.

Associated Minerals at Type Locality:

Synonyms of Chukhrovite-(Y)Hide

Chukhrovite (in part)

Other Language Names for Chukhrovite-(Y)Hide

German:Chukhrovit-(Y)

Russian:Чухровит-(Y)

Relationship of Chukhrovite-(Y) to other SpeciesHide

Member of:

Chukhrovite Group

Other Members of this group:

Chukhrovite-(Ca)	Ca_4.5Al₂(SO₄)F₁₃ · 12H₂O	Iso. m3 (2/m 3) : Fd3
Chukhrovite-(Ce)	Ca₃(Ce,Y)(AlF₆)₂(SO₄)F · 10H₂O	Iso.
Chukhrovite-(Nd)	Ca₃(Nd,Y)Al₂(SO₄)F₁₃ · 12H₂O	Iso. m3 (2/m 3) : Fd3
Meniaylovite	Ca₄[(SO₄)(SiF₆)(AlF₆)]F · 12H₂O	Iso. m3 (2/m 3) : Fd3

Common AssociatesHide

Associated Minerals Based on Photo Data:

4 photos of Chukhrovite-(Y) associated with Quartz	SiO₂
3 photos of Chukhrovite-(Y) associated with Creedite	Ca₃SO₄Al₂F₈(OH)₂ · 2H₂O
3 photos of Chukhrovite-(Y) associated with Natrojarosite	NaFe₃(SO₄)₂(OH)₆
2 photos of Chukhrovite-(Y) associated with Goethite	α-Fe³⁺O(OH)
1 photo of Chukhrovite-(Y) associated with Stolzite	Pb(WO₄)
1 photo of Chukhrovite-(Y) associated with Anglesite	PbSO₄
1 photo of Chukhrovite-(Y) associated with Blatonite	(UO₂)CO₃ · H₂O
1 photo of Chukhrovite-(Y) associated with Gypsum	CaSO₄ · 2H₂O

Related Minerals - Strunz-mindat Grouping Hide

3.CG.3.CG.	Chukhrovite-(Ca)	Ca_4.5Al₂(SO₄)F₁₃ · 12H₂O	Iso. m3 (2/m 3) : Fd3
3.CG.05	Stenonite	(Sr,Ba,Na)₂Al(CO₃)F₅	Mon. 2/m
3.CG.10	Chukhrovite-(Ce)	Ca₃(Ce,Y)(AlF₆)₂(SO₄)F · 10H₂O	Iso.
3.CG.10	Meniaylovite	Ca₄[(SO₄)(SiF₆)(AlF₆)]F · 12H₂O	Iso. m3 (2/m 3) : Fd3
3.CG.10	Chukhrovite-(Nd)	Ca₃(Nd,Y)Al₂(SO₄)F₁₃ · 12H₂O	Iso. m3 (2/m 3) : Fd3
3.CG.15	Creedite	Ca₃SO₄Al₂F₈(OH)₂ · 2H₂O	Mon. 2/m : B2/b
3.CG.20	Bøggildite	Na₂Sr₂Al₂PO₄F₉	Mon. 2/m : P2₁/b
3.CG.25	Thermessaite-(NH4)	(NH₄)₂AlF₃(SO₄)	Orth. mmm (2/m 2/m 2/m) : Pbcn
3.CG.25	Thermessaite	K₂AlF₃(SO₄)	Orth. mmm (2/m 2/m 2/m) : Pbcn
3.CG.30	Kruijenite	Ca₄Al₄(SO₄)F₂(OH)₁₆ · 2H₂O	Tet. 4/mmm (4/m 2/m 2/m) : P4/nnc

Other InformationHide

Thermal Behaviour:

The D.T.A. curve shows a sharp endothermal break at 280° (loss of water of crystallization), a smaller one at 780°, and an exothermal break at 480°.

Before the blowpipe, it swells and fuses easily to a creamy white enamel.

Notes:

Readily dissolves in dilute HCl or H2SO4.

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 Chukhrovite-(Y)Hide

mindat.org URL:

https://www.mindat.org/min-1045.html
Please feel free to link to this page.

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External Links:

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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References for Chukhrovite-(Y)Hide

Reference List:

Ermilova, L. P., Moleva, V. A. & Klevtsova, R. F. (1960): Chukhrovite, a new mineral from Central Kazakhstan. Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva, 89, 15-25. (in Russian)

Fleischer, M., Rooseboom, E. H., Skinner, Brian (1960) New Mineral Names; New data; Discredited minerals. American Mineralogist, 45 (9-10) 1130-1136 p.1132

Bokii, G. B. & Gorogotskaya, L. I. (1965): Crystal structure of chukhrovite. Doklady Akademii Nauk SSSR, 163, 183-185. (in Russian)

Novikova, M. I. (1973): Find of chukhrovite in Siberia. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 102, 200-202 (in Russian). [Ce-rich chukhrovite-(Y)]

Mathew, M., Takagi, S., Waerstad, K. R. & Frazier, A. W. (1981): The crystal structure of synthetic chukhrovite, Ca4AlSi(SO4)F13.12H2O. American Mineralogist, 66, 392-397.

Nickel, Ernest H., Mandarino, Joseph A. (1987) Procedures involving the IMA Commission on New Minerals and Mineral Names and guidelines on mineral nomenclature. American Mineralogist, 72 (9-10) 1031-1042

(2023) Chukhrovite-(Y) Handbook of Mineralogy. Mineralogical Society of America

Localities for Chukhrovite-(Y)Hide

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.


Germany
Saxony Erzgebirgskreis Annaberg-Buchholz Kleinrückerswalde ⓘ Uranus Mine	Möhn

Kazakhstan (TL)
Jambyl Region Moiynkum District ⓘ Kara-Oba W deposit (TL)	Ermilova et al. (1960) +2 other references

Norway
Nordland Hamarøy Finnøya ⓘ Håkonhals Quarry	Husdal (2021)

Russia
Primorsky Krai Khorolsky District Voznesenskii ore district ⓘ Yaroslavskoye Sn/fluorite Deposit	Novikova (1973)
Zabaykalsky Krai Kalarsky District ⓘ Katugin Ta-Nb deposit	P.M. Karashov data

Chukhrovite-(Y)

About Chukhrovite-(Y)Hide

Unique IdentifiersHide

IMA Classification of Chukhrovite-(Y)Hide

Classification of Chukhrovite-(Y)Hide

Mineral SymbolsHide

Physical Properties of Chukhrovite-(Y)Hide

Optical Data of Chukhrovite-(Y)Hide

Chemistry of Chukhrovite-(Y)Hide

Crystallography of Chukhrovite-(Y)Hide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of Chukhrovite-(Y)Hide

Synonyms of Chukhrovite-(Y)Hide

Other Language Names for Chukhrovite-(Y)Hide

Relationship of Chukhrovite-(Y) to other SpeciesHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for Chukhrovite-(Y)Hide

References for Chukhrovite-(Y)Hide

Localities for Chukhrovite-(Y)Hide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide