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Barentsite

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Barentsite

Restin'yun Mt, Khibiny Massif, Murmansk Oblast, Russia

Barentsite

Restin'yun Mt, Khibiny Massif, Murmansk Oblast, Russia

Barentsite

Restin'yun Mt, Khibiny Massif, Murmansk Oblast, Russia

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About BarentsiteHide

Willem Barents

Formula:

Na₇Al(HCO₃)₂(CO₃)₂F₄

Colour:

Colourless

Lustre:

Vitreous, Pearly, Dull

Hardness:

Specific Gravity:

2.56

Crystal System:

Triclinic

Name:

Named after Willem Barents (1550–1597), the famous Dutch seafarer, for whom the Barents Sea, northeast of the Kola Peninsula, was named.

Type Locality:

ⓘ Restin'yun Mt, Khibiny Massif, Murmansk Oblast, Russia

Alters superficially to a white powder in air. Slowly decomposed by water.

Classification of BarentsiteHide

IMA status:

Approved

Strunz 8th ed.:

5/C.02-10

Nickel-Strunz 10th (pending) ed.:

5.BB.05

5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H₂O
B : With alkalies, etc.

Dana 8th ed.:

13.1.8.1

13 : ACID CARBONATES
1 : Miscellaneous

Hey's CIM Ref.:

12.1.2

12 : Carbonates with other anions
1 : Carbonates with halides

Physical Properties of BarentsiteHide

Lustre:

Vitreous, Pearly, Dull

Transparency:

Transparent

Comment:

Pearly on cleavages, dull if weathered

Colour:

Colourless

Hardness:

3 on Mohs scale

Hardness:

VHN₁₀₀=86 - 172 - Vickers

Tenacity:

Brittle

Cleavage:

Perfect
on {001}{110}

Density:

2.56 g/cm³ (Measured) 2.55 g/cm³ (Calculated)

Optical Data of BarentsiteHide

Type:

Biaxial (-)

RI values:

n_α = 1.358 n_β = 1.479 n_γ = 1.530

2V:

Measured: 62° , Calculated: 60°

Max Birefringence:

δ = 0.172

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Surface Relief:

Moderate

Dispersion:

r < v weak

Chemical Properties of BarentsiteHide

Formula:

Na₇Al(HCO₃)₂(CO₃)₂F₄

Elements listed:

Al, C, F, H, Na, O - search for minerals with similar chemistry

Crystallography of BarentsiteHide

Crystal System:

Triclinic

Cell Parameters:

a = 6.472 Å, b = 6.735 Å, c = 8.806 Å
α = 92.5°, β = 97.33°, γ = 119.32°

Ratio:

a:b:c = 0.961 : 1 : 1.307

Unit Cell V:

329.43 Å³ (Calculated from Unit Cell)

Morphology:

Granular to 5mm.

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)
0012474	Barentsite	Tjy C T L, Pobedimskaya E A, Fundamenskii V S, Nadezhina T N, Khomyakov A P (1983) The crystal structure of barentsite Doklady Akademii Nauk SSSR 273 699-704		1983		0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Barentsite'
loop_
_publ_author_name
'Tjy C T L'
'Pobedimskaya E A'
'Fundamenskii V S'
'Nadezhina T N'
'Khomyakov A P'
_journal_name_full 'Doklady Akademii Nauk SSSR'
_journal_volume 273 
_journal_year 1983
_journal_page_first 699
_journal_page_last 704
_publ_section_title
;
 The crystal structure of barentsite
 Note: y(O1) corrected
;
_database_code_amcsd 0012474
_chemical_formula_sum 'Na7 Al H2 C4 O12 F4'
_cell_length_a 6.472
_cell_length_b 6.735
_cell_length_c 8.806
_cell_angle_alpha 92.50
_cell_angle_beta 97.33
_cell_angle_gamma 119.32
_cell_volume 329.430
_exptl_crystal_density_diffrn      2.550
_symmetry_space_group_name_H-M 'P -1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Na1   0.00000   0.00000   0.00000 ?
Na2   0.50000   0.50000   0.00000 ?
Na3   0.50000   0.00000   0.00000 ?
Na4   0.72594   0.38587   0.35730 ?
Na5   0.77860   0.12001   0.64502 ?
Al   0.00000   0.50000   0.00000 ?
H   0.20840   0.22190   0.51390   0.00127
C1   0.28907   0.11140   0.70073 ?
C2   0.20352   0.38800   0.28539 ?
O1   0.35206  -0.00777   0.62662 ?
O2   0.20770   0.23336   0.61985 ?
O3   0.29366   0.13085   0.84371 ?
O4   0.28515   0.25854   0.33757 ?
O5   0.17493   0.39169   0.13584 ?
O6   0.15343   0.50495   0.37421 ?
F1   0.75409   0.39462   0.10792 ?
F2   0.85005   0.21556   0.89472 ?
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Na1 0.02130 0.02065 0.06090 0.01445 0.01636 0.01433
Na2 0.01629 0.02254 0.04644 0.01297 0.00635 0.00691
Na3 0.01535 0.01944 0.06319 0.00870 0.00342 0.01280
Na4 0.02443 0.02082 0.03350 0.01362 0.00610 0.00409
Na5 0.02396 0.02030 0.03350 0.01264 0.00366 0.00179
Al 0.01018 0.01153 0.01865 0.00657 34.18068 0.00282
C1 0.01175 0.01290 0.03159 0.00624 0.00415 0.00435
C2 0.01128 0.01187 0.02436 0.00542 0.00171 0.00333
O1 0.02333 0.01979 0.04149 0.01477 0.00684 0.00205
O2 0.03101 0.02581 0.04225 0.02265 0.01099 0.01305
O3 0.02145 0.00878 0.02741 0.01264 0.00757 0.00563
O4 0.02631 0.02426 0.04415 0.01986 0.00610 0.01177
O5 0.01754 0.02134 0.02170 0.01182 0.00439 0.00461
O6 0.02568 0.02151 0.02817 0.01658 0.00562 0.00077
F1 0.01550 0.02564 0.03007 0.01297 0.00928 0.00921
F2 0.01817 0.01652 0.03235 0.00952 0.00098 -0.00051

Geological EnvironmentHide

Geological Setting:

Hydrothermal veinlets in alkalic pegmatites.

Type Occurrence of BarentsiteHide

Type Locality:

ⓘ Restin'yun Mt, Khibiny Massif, Murmansk Oblast, Russia

Place of Conservation of Type Material:

Fernsman museum 82753

Synonyms of BarentsiteHide

IMA1982-101

Other Language Names for BarentsiteHide

German:Barentsit

Russian:Баренцит

Spanish:Barentsita

Related Minerals - Nickel-Strunz Grouping Hide

5.BB.10	Dawsonite	NaAlCO₃(OH)₂	Orth. mmm (2/m 2/m 2/m) : Imma
5.BB.15	Tunisite	NaCa₂Al₄(CO₃)₄(OH)₈Cl	Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
5.BB.20	Sabinaite	Na₄Zr₂TiO₄(CO₃)₄	Mon. 2/m : B2/b

Related Minerals - Hey's Chemical Index of Minerals Grouping Hide

12.1.1	Northupite	Na₃Mg(CO₃)₂Cl	Iso. m3 (2/m 3) : Fd3
12.1.3	Rouvilleite	Na₃(Ca,Mn,Fe)₂(CO₃)₃F	Mon. 2/m : B2/b
12.1.4	Chlormagaluminite	Mg₄Al₂(OH)₁₂Cl₂ · 3H₂O	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mcm
12.1.5	Defernite	Ca₆(CO₃)_2-x(SiO₄)_x(OH)₇(Cl,OH)_1-2x (x	Orth. mmm (2/m 2/m 2/m) : Pnma
12.1.6	Brenkite	Ca₂(CO₃)F₂	Orth.
12.1.7	Stenonite	(Sr,Ba,Na)₂Al(CO₃)F₅	Mon. 2/m
12.1.8	Bastnäsite-(Ce)	Ce(CO₃)F	Hex. 6 m2 : P6c2
12.1.9	Bastnäsite-(La)	La(CO₃)F	Hex.
12.1.10	Bastnäsite-(Y)	Y(CO₃)F	Hex. 6 m2 : P6₂c
12.1.11	Parisite-(Ce)	CaCe₂(CO₃)₃F₂	Mon. m : Bb
12.1.12	Parisite-(Nd)	Ca(Nd,Ce,La)₂(CO₃)₃F₂
12.1.13	Synchysite-(Ce)	CaCe(CO₃)₂F	Mon. 2/m : B2/b
12.1.14	Synchysite-(Y)	CaY(CO₃)₂F	Mon. 2/m : B2/b
12.1.15	Synchysite-(Nd)	CaNd(CO₃)₂F	Orth.
12.1.16	Röntgenite-(Ce)	Ca₂(Ce,La)₃(CO₃)₅F₃	Trig. 3 : R3
12.1.17	Cordylite-(Ce)	NaBaCe₂(CO₃)₄F	Hex.
12.1.19	Huanghoite-(Ce)	BaCe(CO₃)₂F	Trig. 3m (3 2/m) : R3m
12.1.20	Zhonghuacerite-(Ce)	Ba₂Ce(CO₃)₃F	Trig.
12.1.21	Cebaite-(Ce)	Ba₃Ce₂(CO₃)₅F₂	Mon. 2/m : B2/m
12.1.22	Thorbastnäsite	ThCa(CO₃)₂F₂ · 3H₂O	Hex. 6 m2 : P6₂c
12.1.23	Phosgenite	Pb₂CO₃Cl₂	Tet. 4/mmm (4/m 2/m 2/m) : P4/mbm
12.1.24	Barstowite	Pb₄Cl₆(CO₃) · H₂O	Mon. 2/m : P2₁/m
12.1.25	Albrechtschraufite	Ca₄Mg(UO₂)₂(CO₃)₆F₂ · 17-18H₂O	Tric. 1 : P1
12.1.26	Kettnerite	CaBiCO₃OF	Orth. mmm (2/m 2/m 2/m)

Other InformationHide

Special Storage/
Display Requirements:

Alters to a white powder in air, slowly decomposed by water.

Health Risks:

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

References for BarentsiteHide

Reference List:

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)

American Mineralogist: 69: 565.

Doklady Akademii Nauk SSSR: 273: 699-704.

Internet Links for BarentsiteHide

mindat.org URL:

https://www.mindat.org/min-520.html
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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

Mineral Dealers:

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Localities for BarentsiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.

Russia (TL)

Murmansk Oblast

Khibiny Massif

ⓘ Restin'yun Mt (TL)

Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow

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Barentsite

About BarentsiteHide

Classification of BarentsiteHide

Physical Properties of BarentsiteHide

Optical Data of BarentsiteHide

Chemical Properties of BarentsiteHide

Crystallography of BarentsiteHide

Crystal StructureHide

Geological EnvironmentHide

Type Occurrence of BarentsiteHide

Synonyms of BarentsiteHide

Other Language Names for BarentsiteHide

Related Minerals - Nickel-Strunz GroupingHide

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

Other InformationHide

References for BarentsiteHide

Internet Links for BarentsiteHide

Localities for BarentsiteHide

Locality ListHide

Related Minerals - Nickel-Strunz Grouping Hide

Related Minerals - Hey's Chemical Index of Minerals Grouping Hide