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Paraershovite

A valid IMA mineral species

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Photos of Paraershovite (2)

Search Photos of Paraershovite

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Paraershovite

Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

Paraershovite

Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

Paraershovite

Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

Paraershovite

Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

Paraershovite

Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

Paraershovite

Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

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About ParaershoviteHide

Formula:

Na₃K₃Fe³⁺₂Si₈O₂₀(OH)₄ · 4H₂O

Colour:

yellow with orange or pinkish shades

Lustre:

Vitreous

Specific Gravity:

2.60

Crystal System:

Triclinic

Name:

The name paraershovite [from the Greek para (close by) and ershovite] recognizes the close structural and chemical relations between the new mineral and its closest analogue

Type Locality:

ⓘ Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

Fe³⁺-analogue of ershovite.

Unique IdentifiersHide

Mindat ID:

39560

Long-form identifier:

mindat:1:1:39560:3

GUID
(UUID V4):

f8867e42-344b-4dff-b483-6ed3b26204b9

IMA Classification of ParaershoviteHide

IMA status:

Approved

IMA Formula:

Na₃K₃Fe³⁺₂(Si₄O₁₀OH)₂(OH)₂(H₂O)₄

Approval year:

2009

Classification of ParaershoviteHide

Strunz-mindat (2024):

9.DF.15

9 : SILICATES (Germanates)
D : Inosilicates
F : Inosilicates with 2-periodic multiple chains

Dana 8th ed.:

66.6.3.2

66 : INOSILICATES Double-Width,Unbranched Chains,(W=2)
6 : Double-Width Unbranched Chains, W=2 with P=2 non-amphibole configuration

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
Psh	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 ParaershoviteHide

Lustre:

Vitreous

Transparency:

Transparent, Translucent

Colour:

yellow with orange or pinkish shades

Streak:

White

Tenacity:

Brittle

Cleavage:

Perfect
{100}

Fracture:

Splintery, Step-Like

Density:

2.60(3) g/cm³ (Measured) 2.584 g/cm³ (Calculated)

Optical Data of ParaershoviteHide

Type:

Biaxial (+)

RI values:

n_α = 1.569(2) n_β = 1.583(2) n_γ = 1.602(2)

2V:

Measured: 80° (3), Calculated: 82°

Max Birefringence:

δ = 0.033

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

Surface Relief:

Moderate

Dispersion:

dispersion r > v (weak)

Pleochroism:

Non-pleochroic

Chemistry of ParaershoviteHide

Mindat Formula:

Na₃K₃Fe³⁺₂Si₈O₂₀(OH)₄ · 4H₂O

Elements listed:

Fe, H, K, Na, O, Si - search for minerals with similar chemistry

Crystallography of ParaershoviteHide

Crystal System:

Triclinic

Class (H-M):

1 - Pinacoidal

Space Group:

Cell Parameters:

a = 10.1978(5) Å, b = 12.0155(6) Å, c = 5.2263(3) Å
α = 103.439(1)°, β = 96.020(1)°, γ = 91.683(1)°

Ratio:

a:b:c = 0.849 : 1 : 0.435

Unit Cell V:

618.46 Å³ (Calculated from Unit Cell)

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)
0006330	Paraershovite	Khomyakov A P, Camara F, Sokolova E, Abdu Y, Hawthorne F C (2010) Paraershovite, Na3K3Fe3+2(Si4O10OH)2(OH)2(H2O)4, a new mineral species from the Khibina Alkaline massif, Kola Peninsula, Russia: Description and crystal structure The Canadian Mineralogist 48 279-290		2010	the Khibina Alkaline massif, Kola Peninsula, Russia	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Paraershovite'
loop_
_publ_author_name
'Khomyakov A P'
'Camara F'
'Sokolova E'
'Abdu Y'
'Hawthorne F C'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 48 
_journal_year 2010
_journal_page_first 279
_journal_page_last 290
_publ_section_title
;
 Paraershovite, Na3K3Fe3+2(Si4O10OH)2(OH)2(H2O)4, a new mineral species from the
 Khibina Alkaline massif, Kola Peninsula, Russia: Description and crystal structure
;
_database_code_amcsd 0006330
_chemical_compound_source 'the Khibina Alkaline massif, Kola Peninsula, Russia'
_chemical_formula_sum 'K2.92 Na2.44 (Fe1.74 Mn1.36 Ti.76 Mg.14) Si8 O28 H12'
_cell_length_a 10.1978
_cell_length_b 12.0155
_cell_length_c 5.2263
_cell_angle_alpha 103.439
_cell_angle_beta 96.020
_cell_angle_gamma 91.683
_cell_volume 618.460
_exptl_crystal_density_diffrn      2.864
_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_occupancy
_atom_site_U_iso_or_equiv
K(1)   0.56870   0.13502   0.82030   0.96000   0.02850
K(2)   0.50000   0.50000   0.50000   1.00000   0.03390
Na(1)   0.97570   0.86110   0.46090   0.81000   0.03180
Na(2)   0.99010   0.74100   0.88550   0.41000   0.03100
Fe2+M   0.00552   0.42473   0.70056   0.87000   0.01180
Mn2+M   0.00552   0.42473   0.70056   0.68000   0.01180
TiM   0.00552   0.42473   0.70056   0.38000   0.01180
MgM   0.00552   0.42473   0.70056   0.07000   0.01180
Si(1)   0.73752   0.28343   0.42910   1.00000   0.01220
Si(2)   0.71648   0.67365   0.13600   1.00000   0.01330
Si(3)   0.73373   0.41941   0.99380   1.00000   0.01160
Si(4)   0.67806   0.81252   0.70100   1.00000   0.01720
O(1)   0.67350   0.35220   0.69540   1.00000   0.01590
O(2)   0.89520   0.29650   0.48220   1.00000   0.01660
O(3)   0.65250   0.72840   0.89820   1.00000   0.02410
O(4)   0.87350   0.68320   0.17470   1.00000   0.01760
O(5)   0.89190   0.43920   0.01760   1.00000   0.01340
O(6)   0.82330   0.87240   0.76390   1.00000   0.03340
O(7)   0.66020   0.53970   0.05580   1.00000   0.01930
O(8)   0.65030   0.73230   0.40040   1.00000   0.02280
O(9)   0.68320   0.34680   0.19410   1.00000   0.01790
O(10)   0.67730   0.15410   0.35230   1.00000   0.02020
O(11)   0.56530   0.90520   0.73030   1.00000   0.02380
O(12)   0.89330   0.54580   0.57330   1.00000   0.01710
O(13)   0.85810   0.99250   0.28310   1.00000   0.06600
O(14A)   0.88900   0.15600   0.90400   0.50000   0.05100
O(14B)   0.85600   0.11300   0.82200   0.50000   0.05100
H(1)   0.48100   0.87500   0.69200   1.00000   0.03566
H(2)   0.88200   0.60300   0.71400   1.00000   0.02569
H(3)   0.84700   0.95300   0.11100   1.00000   0.09960
H(4)   0.78900   0.03800   0.31000   1.00000   0.09960
H(5)   0.96900   0.17900   0.01000   0.50000   0.07653
H(6)   0.86000   0.07900   0.91000   0.50000   0.07653
H(7)   0.78600   0.13000   0.66400   0.50000   0.07653
H(8)   0.79900   0.13000   0.98000   0.50000   0.07653
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
K(1) 0.04370 0.02260 0.01810 -0.00250 0.00140 0.00410
K(2) 0.03550 0.04270 0.02790 0.02470 0.00820 0.01250
Na(1) 0.02400 0.02300 0.04500 -0.00010 -0.00270 0.00430
Na(2) 0.02700 0.03500 0.03400 0.00900 0.01600 0.01100
Fe2+M 0.00850 0.01400 0.01190 0.00190 0.00010 0.00120
Mn2+M 0.00850 0.01400 0.01190 0.00190 0.00010 0.00120
TiM 0.00850 0.01400 0.01190 0.00190 0.00010 0.00120
MgM 0.00850 0.01400 0.01190 0.00190 0.00010 0.00120
Si(1) 0.01030 0.01440 0.01180 0.00140 0.00210 0.00240
Si(2) 0.00990 0.01520 0.01480 0.00320 0.00170 0.00330
Si(3) 0.00880 0.01370 0.01170 0.00140 0.00170 0.00160
Si(4) 0.01910 0.01670 0.01570 0.00350 0.00340 0.00270
O(1) 0.00900 0.02300 0.01500 0.00220 0.00240 0.00400
O(2) 0.01100 0.02100 0.01600 0.00200 0.00140 0.00160
O(3) 0.01800 0.03400 0.02300 0.00500 0.00100 0.01300
O(4) 0.01000 0.02100 0.02200 0.00180 0.00080 0.00600
O(5) 0.00900 0.02100 0.01000 -0.00050 0.00110 0.00210
O(6) 0.01900 0.03700 0.03900 -0.00300 0.00300 -0.00100
O(7) 0.01100 0.01700 0.02900 0.00330 0.00240 0.00300
O(8) 0.01800 0.02900 0.01800 0.00400 0.00400 -0.00100
O(9) 0.01200 0.02700 0.01400 0.00150 0.00060 0.00600
O(10) 0.01700 0.01900 0.02300 -0.00100 0.00300 0.00200
O(11) 0.02000 0.01900 0.03100 0.00300 0.00200 0.00200
O(12) 0.01500 0.01900 0.01700 0.00530 0.00330 0.00200
O(13) 0.05700 0.04000 0.08300 0.02000 -0.02600 -0.01200
O(14A) 0.04000 0.05800 0.05900 0.00500 0.01200 0.01800
O(14B) 0.04000 0.05800 0.05900 0.00500 0.01200 0.01800

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
11.778 Å	(100)
4.390 Å	(70)
4.109 Å	(60)
3.390 Å	(50)
3.012 Å	(70)
2.730 Å	(60)
2.606 Å	(70)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4b: Highly evolved igneous rocks	>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of ParaershoviteHide

Type Locality:

ⓘ Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

General Appearance of Type Material:

equant (100) platy and [001] elongate prismatic crystals up to 0.5–1 mm and aggregates up to 2–3 mm, sporadically scattered
in the pegmatite matrix.

Place of Conservation of Type Material:

Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia (catalogue number 3793).

Geological Setting of Type Material:

hyperagpaitic pegmatite occurring in ijolite–urtite.

Associated Minerals at Type Locality:

Sodalite	Aegirine	Arfvedsonite	Pectolite	Shcherbakovite
Lamprophyllite	Lomonosovite	Shafranovskite	Villiaumite	Natrophosphate

Synonyms of ParaershoviteHide

IMA2009-025

Related Minerals - Strunz-mindat Grouping Hide

9.DF.	Bohseite	Ca₄Be_3+xAl_1-xSi₉O_25-x(OH)_3+x	Orth. mmm (2/m 2/m 2/m) : Cmcm
9.DF.05	Chesterite	(Mg,Fe)₁₇Si₂₀O₅₄(OH)₆	Orth. mm2
9.DF.05	Clinojimthompsonite	(Mg,Fe)₅Si₆O₁₆(OH)₂	Mon. 2/m : B2/b
9.DF.05	Jimthompsonite	(Mg,Fe)₅Si₆O₁₆(OH)₂	Orth. mmm (2/m 2/m 2/m) : Pbca
9.DF.15	Ershovite	Na₄K₃(Fe,Mn,Ti)₂Si₈O₂₂(OH)₄ · 4H₂O	Tric. 1 : P1
9.DF.20	Tvedalite	(Ca,Mn)₄Be₃Si₆O₁₇(OH)₄ · 3H₂O	Orth.
9.DF.25	Bavenite	Ca₄Be₂Al₂Si₉O₂₆(OH)₂	Orth. mm2
9.DF.30	Bigcreekite	BaSi₂O₅ · 4H₂O	Orth. mmm (2/m 2/m 2/m) : Pnma

Fluorescence of ParaershoviteHide

In UV light:

none

Other InformationHide

Notes:

Paraershovite readily decomposes at room temperature in a ceramic container with 50% HCl and HNO3 solution

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 ParaershoviteHide

mindat.org URL:

https://www.mindat.org/min-39560.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 ParaershoviteHide

Reference List:

Khomyakov, A. P., Camara, F., Sokolova, E., Abdu, Y., Hawthorne, F. C. (2010) Paraershovite, Na₃K₃Fe³⁺₂(Si₄O₁₀OH)₂(OH)₂(H₂O)₄, a new mineral species from the Khibina Alkaline massif, Kola Peninsula, Russia: Description and crystal structure. The Canadian Mineralogist, 48 (2) 279-290 doi:10.3749/canmin.48.2.279

(2023) Paraershovite. Handbook of Mineralogy. Mineralogical Society of America

Localities for ParaershoviteHide

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.

Russia (TL)

Murmansk Oblast

Khibiny Massif

ⓘ Yukspor Mt (TL)

Khomyakov et al. (2010)

Paraershovite

About ParaershoviteHide

Unique IdentifiersHide

IMA Classification of ParaershoviteHide

Classification of ParaershoviteHide

Mineral SymbolsHide

Physical Properties of ParaershoviteHide

Optical Data of ParaershoviteHide

Chemistry of ParaershoviteHide

Crystallography of ParaershoviteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of ParaershoviteHide

Synonyms of ParaershoviteHide

Related Minerals - Strunz-mindat GroupingHide

Fluorescence of ParaershoviteHide

Other InformationHide

Internet Links for ParaershoviteHide

References for ParaershoviteHide

Localities for ParaershoviteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide