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Godlevskite

A valid IMA mineral species

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Godlevskite, etc.

Talnakh Cu-Ni Deposit, Norilsk-Talnakh Mining Region, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia

Godlevskite, etc.

Talnakh Cu-Ni Deposit, Norilsk-Talnakh Mining Region, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia

Godlevskite, etc.

Talnakh Cu-Ni Deposit, Norilsk-Talnakh Mining Region, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia

Godlevskite, etc.

Talnakh Cu-Ni Deposit, Norilsk-Talnakh Mining Region, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia

Godlevskite, etc.

Talnakh Cu-Ni Deposit, Norilsk-Talnakh Mining Region, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia

Godlevskite, etc.

Talnakh Cu-Ni Deposit, Norilsk-Talnakh Mining Region, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia

Godlevskite, etc.

Talnakh Cu-Ni Deposit, Norilsk-Talnakh Mining Region, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia

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About GodlevskiteHide

Mikhail N. Godlevskii

Formula:

(Ni,Fe)₉S₈

Typical analyses:
(Ni_7.68Fe_0.39Co_0.08)_Σ=8.15S_8.00
(Ni_8.58Fe_0.29Co_0.02)_Σ=8.89S_8.00
Ni_9.12S_8.00.
Originally thought to be Ni₇S₆.

Lustre:

Metallic

Hardness:

4 - 5

Specific Gravity:

5.273 (Calculated)

Crystal System:

Orthorhombic

Name:

Named in honor of Mikhail Nikolaevich Godlevskiy (Михаил Николаевич Годлевский) (14 October 1902, Warsaw, Russian Empire (now Poland) – 4 June 1984, Moscow, USSR), economic geologist, Central Institute of Geological Exploration for Base and Precious Metals, Moscow, Russia.

Co-Type Localities:

ⓘ Zapolyarnyi Mine (Zapolyarni Mine), Noril'sk-1 Cu-Ni deposit, Noril'sk Cu-Ni deposit, Norilsk-Talnakh Mining Region, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia
ⓘ Mayak Mine, Talnakh Cu-Ni Deposit, Norilsk-Talnakh Mining Region, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia
ⓘ Mine No. 8, Talnakh Cu-Ni Deposit, Norilsk-Talnakh Mining Region, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia

Dimorph of:

'UM2002-26-S:FeNi'

Stoichimetrically similar to millerite.
Compare also the chemically related pentlandite and heazlewoodite.

Unique IdentifiersHide

Mindat ID:

1716

Long-form identifier:

mindat:1:1:1716:5

IMA Classification of GodlevskiteHide

IMA status:

Approved

Approval year:

1968

First published:

1969

Type description reference:

Kulagov, E.A., Evstigneeva, T.L., Yushko-Zakharova, O.E. (1969) The new nickel sulfide godlevskite. Geologiya Rudnykh Mestorozhdeniy: 11: 115–121.

Classification of GodlevskiteHide

Strunz-mindat (2026):

2.BB.15

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
B : With Ni

Dana 8th ed.:

2.7.4.1

2 : SULFIDES
7 : A_mB_nX_p, with (m+n):p = 9:8

Hey's CIM Ref.:

3.11.2

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
11 : Sulphides etc. of Ni

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 for Standard
Go	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Go	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 GodlevskiteHide

Lustre:

Metallic

Transparency:

Opaque

Hardness:

4 - 5 on Mohs scale

Hardness:

VHN₄₀=383 - 415 kg/mm² - Vickers

Density:

5.273 g/cm³ (Calculated)

Optical Data of GodlevskiteHide

Anisotropism:

Strong from bluish to reddish

Bireflectance:

Weak, shades of yellow

Reflectivity:

Wavelength	R₁ (%)	R₂ (%)
400nm	25.7%	27.1%
420nm	30.3%	32.1%
440nm	35.7%	37.9%
460nm	40.6%	42.6%
480nm	44.5%	46.5%
500nm	47.4%	49.1%
520nm	49.7%	50.9%
540nm	51.3%	52.2%
560nm	52.5%	53.0%
580nm	53.6%	53.8%
600nm	54.6%	54.4%
620nm	55.4%	55.0%
640nm	56.1%	55.6%
660nm	57.0%	56.2%
680nm	57.8%	56.8%
700nm	58.4%	57.4%

Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 58.4%.
R₁ shown in black, R₂ shown in red

Colour in reflected light:

Pale yellow

Pleochroism:

Weak

Comments:

Pale cream to pinkish cream

Chemistry of GodlevskiteHide

Mindat Formula:

(Ni,Fe)₉S₈

Typical analyses:
(Ni_7.68Fe_0.39Co_0.08)_Σ=8.15S_8.00
(Ni_8.58Fe_0.29Co_0.02)_Σ=8.89S_8.00
Ni_9.12S_8.00.
Originally thought to be Ni₇S₆.

Element Weights:

Element	% weight
Ni	67.312 %
S	32.688 %

Calculated from ideal end-member formula.

Elements listed:

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

Common Impurities:

Crystallography of GodlevskiteHide

Crystal System:

Orthorhombic

Class (H-M):

222 - Disphenoidal

Space Group:

C222

Cell Parameters:

a = 9.18 Å, b = 11.26 Å, c = 9.45 Å

Ratio:

a:b:c = 0.815 : 1 : 0.839

Unit Cell V:

976.82 Å³ (Calculated from Unit Cell)

Morphology:

Aggregates and grains, fine disseminations.

Twinning:

Common and complex, perpendicular to (101), geniculated.

Comment:

Pseudo-tetragonal.

Crystal StructureHide

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

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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)
0007326	Godlevskite	Merlino S, Makovicky E (2009) OD (order-disorder) character of the crystal structure of godlevskite Ni9S8 European Journal of Mineralogy 21 863-869		2009	modelled structure, not experimental	0	293
0010055	Godlevskite	Fleet M E (1987) Structure of godlevskite, Ni9S8 Acta Crystallographica C43 2255-2257		1987		0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Godlevskite'
loop_
_publ_author_name
'Merlino S'
'Makovicky E'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 21 
_journal_year 2009
_journal_page_first 863
_journal_page_last 869
_publ_section_title
;
 OD (order-disorder) character of the crystal structure of godlevskite Ni9S8
;
_database_code_amcsd 0007326
_chemical_compound_source 'modelled structure, not experimental'
_chemical_formula_sum 'Ni4.5 S4'
_cell_length_a 9.38
_cell_length_b 9.38
_cell_length_c 22.44
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1974.370
_exptl_crystal_density_diffrn      5.280
_symmetry_space_group_name_H-M 'I -4 2 d'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  '1/2-y,-x,3/4+z'
  '-y,1/2-x,1/4+z'
  'y,-x,-z'
  '1/2+y,1/2-x,1/2-z'
  '-x,1/2+y,1/4-z'
  '1/2-x,+y,3/4-z'
  '-x,-y,z'
  '1/2-x,1/2-y,1/2+z'
  '1/2+y,x,3/4+z'
  '+y,1/2+x,1/4+z'
  '-y,x,-z'
  '1/2-y,1/2+x,1/2-z'
  'x,1/2-y,1/4-z'
  '1/2+x,-y,3/4-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Ni1   0.00000  -0.21700   0.00000   1.00000
Ni2   0.00000   0.50000   0.00000   1.00000
Ni4   0.25000  -0.27190   0.12500   0.50000
Ni5   0.50000   0.50000   0.13180   1.00000
Ni7   0.12630   0.12150   0.09210   1.00000
Ni8   0.37430  -0.37370  -0.04390   1.00000
S1   0.13380  -0.36450  -0.06480   1.00000
S1A  -0.13380  -0.36450   0.06480   1.00000
S3   0.11790  -0.11980   0.06480   1.00000
S4   0.38020  -0.38590   0.06480   1.00000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
2.85 Å	(100)
1.803 Å	(90)
1.795 Å	(80)
1.654 Å	(80)
3.28 Å	(50)
2.10 Å	(50)
2.33 Å	(40)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 3b: Earth’s earliest hydrosphere	>4.45
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)

Geological Setting:

Hydrothermal veins, peridotites

Type Occurrence of GodlevskiteHide

Co-Type Localities:

General Appearance of Type Material:

Aggregates and single grains up to 1 mm, but rarely more than 0.3 mm in size.

Place of Conservation of Type Material:

1) Institute of Geology, Moscow, Russia.
2) A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 73000.

Associated Minerals at Type Locality:

Reference:

Kulagov, E.A., Evstigneeva, T.L., Yushko-Zakharova, O.E. (1969) The new nickel sulfide godlevskite. Geologiya Rudnykh Mestorozhdeniy: 11: 115–121.

Synonyms of GodlevskiteHide

IMA1968-032

Other Language Names for GodlevskiteHide

Dutch:Godlevskiet

German:Godlevskit

Russian:Годлевскит

Simplified Chinese:斜方硫镍矿

Spanish:Godlevskita

Common AssociatesHide

Associations Based on Photo Data: