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Sogdianite

A valid IMA mineral species

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Photos of Sogdianite (31)Discuss Sogdianite

Sogdianite Gallery Search Photos of Sogdianite

Edit Sogdianite Add Synonym Edit CIF structures Clear Cache

Sogdianite, etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA

Sogdianite, etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA

Sogdianite, etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA

Sogdianite, etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA

Sogdianite, etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA

Sogdianite, etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA

Sogdianite, etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA

Sogdianite, etc.

Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA

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About SogdianiteHide

Sogdiana

Formula:

K◻₂Zr₂Li₃[Si₁₂O₃₀]

Colour:

Violet, pale pink

Lustre:

Vitreous

Hardness:

Specific Gravity:

2.90

Crystal System:

Hexagonal

Member of:

Osumilite Group

Name:

Named after the ancient region of Sogdia/Sogdiana that at different times included territory located in present-day Uzbekistan, Tajikistan, Kazakhstan, and Kyrgyzstan. It existed from the 6th century BC to the 11th century AD. The type locality is in this region.

Type Locality:

ⓘ Dara-i-Pioz Massif, Districts of Republican Subordination, Tajikistan

Osumilite Group. The Zr analogue of berezanskite and brannockite. The only mineral with dominant K, Li and Zr combined.

Visit gemdat.org for gemological information about Sogdianite.

Unique IdentifiersHide

Mindat ID:

3708

Long-form identifier:

mindat:1:1:3708:8

IMA Classification of SogdianiteHide

IMA status:

Approved

IMA Formula:

KZr⁴⁺₂(Li₃Si₁₂)O₃₀

First published:

1968

Type description reference:

Dusmatov, V.D., Efimov, A.F., Kataeva, Z.T., Khoroshilova, L.A., Yanulov, K.P. (1968) Sogdianite - a new mineral. Doklady Akademii Nauk SSSR: 182: 1176-1177.

Classification of SogdianiteHide

Strunz-mindat (2026):

9.CM.05

9 : SILICATES (Germanates)
C : Cyclosilicates
M : [Si₆O₁₈]₁₂- 6-membered double rings (sechser-Doppelringe)

Dana 8th ed.:

63.2.1a.13

63 : CYCLOSILICATES Condensed Rings
2 : Condensed Rings (Milarite - Osumilite group)

Hey's CIM Ref.:

16.1.16

16 : Silicates Containing Aluminum and other Metals
1 : Aluminosilicates of Li

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

Lustre:

Vitreous

Transparency:

Translucent

Colour:

Violet, pale pink

Hardness:

7 on Mohs scale

Cleavage:

Perfect
{0001}

Density:

2.90 g/cm³ (Measured)

Optical Data of SogdianiteHide

Type:

Uniaxial (-)

RI values:

n_ω = 1.608 n_ε = 1.606

Max. Birefringence:

δ = 0.002
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.

Thickness: 30 µm Order divisions

Rotation:

Surface Relief:

High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).

This shows the grain boundary and Becke line effect under plane-polarised light, based on the contrast between this mineral's average refractive index and the mounting medium. It does not take into account mineral colouration.

Focus:

In focus

Interference Figure:

This shows the idealized uniaxial interference figure - the conoscopic (convergent-light, Bertrand-lens-in) view, for a grain cut with the optic axis centred and vertical. The coloured rings are isochromatics, computed with the same physics as the Michel-Lévy bar above; the dark cross is the isogyre.

For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.

Thickness: 30 µm

Chemistry of SogdianiteHide

Mindat Formula:

K◻₂Zr₂Li₃[Si₁₂O₃₀]

Element Weights:

Element	% weight
O	45.308 %
Si	31.814 %
Zr	17.222 %
K	3.691 %
Li	1.966 %

Calculated from ideal end-member formula.

Elements listed:

K, Li, O, Si, Zr - search for minerals with similar chemistry

Common Impurities:

Al,Mn,Mg,Ba

Crystallography of SogdianiteHide

Crystal System:

Hexagonal

Class (H-M):

6/mmm(6/m2/m2/m) - Dihexagonal Dipyramidal

Space Group:

P6/mcc

Setting:

P6/mcc

Cell Parameters:

a = 10.08 Å, c = 14.24 Å

Ratio:

a:c = 1 : 1.413

Unit Cell V:

1,253.03 Å³ (Calculated from Unit Cell)

Crystal StructureHide

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

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CIF File Best | x | y | z | a | b | c

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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)
0005692	Sogdianite	Sokolova E V, Hawthorne F C, Pautov L A (2000) The crystal chemistry of Li-bearing minerals with the milarite-type structure: The crystal structure of end-member sogdianite The Canadian Mineralogist 38 853-859		2000	Dara-i-Pioz, Tadjikistan	0	293
0002224	Sogdianite	Cooper M A, Hawthorne F C, Grew E S (1999) The crystal chemistry of sogdianite, a milarite-group mineral American Mineralogist 84 764-768		1999	Dara-i-Pioz, Tadjikistan	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Sogdianite'
loop_
_publ_author_name
'Sokolova E V'
'Hawthorne F C'
'Pautov L A'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 38 
_journal_year 2000
_journal_page_first 853
_journal_page_last 859
_publ_section_title
;
 The crystal chemistry of Li-bearing minerals with the milarite-type structure:
 The crystal structure of end-member sogdianite
;
_database_code_amcsd 0005692
_chemical_compound_source 'Dara-i-Pioz, Tadjikistan'
_chemical_formula_sum 'Zr2 K Si12 Li3 O30'
_cell_length_a 10.1240
_cell_length_b 10.1240
_cell_length_c 14.3198
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 1271.077
_exptl_crystal_density_diffrn      2.768
_symmetry_space_group_name_H-M 'P 6/m c c'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-x+y,1/2+z'
  'x,x-y,1/2-z'
  '-x+y,-x,-z'
  'x-y,x,z'
  '-y,-x,1/2+z'
  'y,x,1/2-z'
  'y,-x+y,-z'
  '-y,x-y,z'
  'x-y,-y,1/2+z'
  '-x+y,y,1/2-z'
  'x,y,-z'
  '-x,-y,z'
  'x,x-y,1/2+z'
  '-x,-x+y,1/2-z'
  'x-y,x,-z'
  '-x+y,-x,z'
  'y,x,1/2+z'
  '-y,-x,1/2-z'
  '-y,x-y,-z'
  'y,-x+y,z'
  '-x+y,y,1/2+z'
  'x-y,-y,1/2-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
Zr   0.33333   0.66667   0.25000   0.00610
K   0.00000   0.00000   0.25000   0.02170
Si   0.11184   0.35135   0.10941   0.00730
Li   0.00000   0.50000   0.25000   0.01410
O   0.12460   0.39110   0.00000   0.01640
O   0.21790   0.27790   0.13483   0.01380
O   0.15650   0.49830   0.17173   0.01010
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
Zr 0.00590 0.00590 0.00670 0.00290 0.00000 0.00000
K 0.02070 0.02070 0.02360 0.01040 0.00000 0.00000
Si 0.00680 0.00800 0.00710 0.00370 -0.00050 -0.00100
Li 0.00740 0.01460 0.01780 0.00370 0.00000 0.00000
O 0.02320 0.01970 0.00610 0.01050 0.00000 0.00000
O 0.01340 0.01640 0.01640 0.01090 -0.00050 -0.00030
O 0.00990 0.01020 0.00970 0.00460 -0.00120 -0.00280

X-Ray Powder DiffractionHide

Loading XRD data...

2θ (degrees) d-spacing (Å)

Data courtesy of RRUFF project at University of Arizona, used with permission.

Powder Diffraction Data:

d-spacing	Intensity
3.20 Å	(100)
2.90 Å	(100)
4.09 Å	(90)
1.838 Å	(80)
1.326 Å	(80)
1.517 Å	(70)
4.51 Å	(60)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4a: Earth’s earliest continental crust	>4.4-3.0
19 : Granitic intrusive rocks
High-? alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits
Stage 4b: Highly evolved igneous rocks	>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of SogdianiteHide

Type Locality:

ⓘ Dara-i-Pioz Massif, Districts of Republican Subordination, Tajikistan

General Appearance of Type Material:

tabular crystals to 1 cm; platy aggregates to 15 cm

Place of Conservation of Type Material:

Mineralogy Museum, St. Petersburg University, St. Petersburg, no. 16246; Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, nos. 72028, 74962, vis3595

Geological Setting of Type Material:

pegmatite of the alkaline-granitic composition

Associated Minerals at Type Locality:

Aegirine	Kupletskite-(Cs)	Microcline	Pyrochlore Group	Quartz
Thorite	Tienshanite

Reference:

Dusmatov, V.D., Efimov, A.F., Kataeva, Z.T., Khoroshilova, L.A., Yanulov, K.P. (1968) Sogdianite - a new mineral. Doklady Akademii Nauk SSSR: 182: 1176-1177.

Other Language Names for SogdianiteHide

Dutch:Sogdianiet

German:Sogdianit

Russian:Согдианит

Simplified Chinese:锆锂大隅石

Spanish:Sogdianita

Traditional Chinese:鋯鋰大隅石

Relationship of Sogdianite to other SpeciesHide

Member of:

Osumilite Group

Other Members of Osumilite Group:

Agakhanovite-(Y)	K◻₂(YCa)Be₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Almarudite	K◻₂Mn²⁺₂(Be₂Al)[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mmm
Aluminosugilite	KNa₂Al₂Li₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Armenite	Ba(H₂O)₂Ca₂Al₃[Al₃Si₉O₃₀]	Orth. mmm(2/m2/m2/m) : Pnna
Berezanskite	K◻₂Ti₂Li₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Brannockite	K◻₂Sn₂Li₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Chayesite	K◻₂Mg₂(Mg₂Fe³⁺)[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Darapiosite	KNa₂Mn₂(Zn₂Li)[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Dusmatovite	K(K◻)Mn²⁺₂Zn₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Eifelite	KNa₂(MgNa)Mg₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Friedrichbeckeite	K(◻Na)Mg₂(Be₂Mg)[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Klöchite	K◻₂(Fe²⁺Fe³⁺)Zn₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6₃/mmc
Laurentthomasite	K◻₂Mg₂(Be₂Al)[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Merrihueite	K(◻Na)Fe²⁺₂Fe²⁺₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Milarite	K(◻H₂O)Ca₂(Be₂Al)[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Oftedalite	K◻₂(ScCa)Be₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Osumilite	K◻₂Fe²⁺₂Al₃[Al₂Si₁₀O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Osumilite-(Mg)	K◻₂Mg₂Al₃[Al₂Si₁₀O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Plechovite	Ca₂[K(H₂O)]KBe₃Si₁₂O₃₀	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Poudretteite	K◻₂Na₂B₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Roedderite	K(◻Na)Mg₂Mg₃[Si₁₂O₃₀]	Hex. 6m2 : P62c
Shibkovite	K(◻K)Ca₂Zn₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Sugilite	KNa₂Fe³⁺₂Li₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Trattnerite	◻(◻)₂Fe³⁺₂Mg₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
'UM1990-73-SiO:KMnNaZn'	K(KNa_0.5◻_0.5)(Mn_1.5Na_0.5)Zn₃[Si₁₂O₃₀]	Hex.
'Unnamed (Mn3+-dominant analog of Sugilite)'	KNa₂Mn³⁺₂Li₃[Si₁₂O₃₀]
Yagiite	Na◻₂Mg₂Al₃[Al₂Si₁₀O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc

Common AssociatesHide

Associations Based on Photo Data:

13 photos of Sogdianite associated with Quartz	SiO₂
13 photos of Sogdianite associated with Zektzerite	LiNaZrSi₆O₁₅
12 photos of Sogdianite associated with Zircon	Zr(SiO₄)
11 photos of Sogdianite associated with Microcline	K(AlSi₃O₈)
6 photos of Sogdianite associated with Ilmenite	Fe²⁺TiO₃
6 photos of Sogdianite associated with Albite	Na(AlSi₃O₈)
6 photos of Sogdianite associated with Arfvedsonite	NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂
4 photos of Sogdianite associated with Polylithionite	KLi₂Al(Si₄O₁₀)(F,OH)₂
3 photos of Sogdianite associated with Hydroxycalciopyrochlore	(Ca,Na,U,◻)₂(Nb,Ti)₂O₆(OH)
1 photo of Sogdianite associated with Tienshanite	KNa₃Na₆Ca₂Ba₆Mn₆(Ti⁴⁺,Nb)₆B₁₂Si₃₆O₁₁₄(O,OH,F)₁₁

Related Minerals - Strunz-mindat Grouping Hide

9.CM.	Agakhanovite-(Y)	K◻₂(YCa)Be₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.	Plechovite	Ca₂[K(H₂O)]KBe₃Si₁₂O₃₀	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Friedrichbeckeite	K(◻Na)Mg₂(Be₂Mg)[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Laurentthomasite	K◻₂Mg₂(Be₂Al)[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	'UM1990-73-SiO:KMnNaZn'	K(KNa_0.5◻_0.5)(Mn_1.5Na_0.5)Zn₃[Si₁₂O₃₀]	Hex.
9.CM.05	Eifelite	KNa₂(MgNa)Mg₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Almarudite	K◻₂Mn²⁺₂(Be₂Al)[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mmm
9.CM.05	Armenite	Ba(H₂O)₂Ca₂Al₃[Al₃Si₉O₃₀]	Orth. mmm(2/m2/m2/m) : Pnna
9.CM.05	Merrihueite	K(◻Na)Fe²⁺₂Fe²⁺₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Oftedalite	K◻₂(ScCa)Be₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Roedderite	K(◻Na)Mg₂Mg₃[Si₁₂O₃₀]	Hex. 6m2 : P62c
9.CM.05	Shibkovite	K(◻K)Ca₂Zn₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Milarite	K(◻H₂O)Ca₂(Be₂Al)[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Berezanskite	K◻₂Ti₂Li₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Poudretteite	K◻₂Na₂B₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Darapiosite	KNa₂Mn₂(Zn₂Li)[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Chayesite	K◻₂Mg₂(Mg₂Fe³⁺)[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Osumilite-(Mg)	K◻₂Mg₂Al₃[Al₂Si₁₀O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Osumilite	K◻₂Fe²⁺₂Al₃[Al₂Si₁₀O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Sugilite	KNa₂Fe³⁺₂Li₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Trattnerite	◻(◻)₂Fe³⁺₂Mg₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Brannockite	K◻₂Sn₂Li₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Klöchite	K◻₂(Fe²⁺Fe³⁺)Zn₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6₃/mmc
9.CM.05	Dusmatovite	K(K◻)Mn²⁺₂Zn₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.05	Yagiite	Na◻₂Mg₂Al₃[Al₂Si₁₀O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.9.CM.	Aluminosugilite	KNa₂Al₂Li₃[Si₁₂O₃₀]	Hex. 6/mmm(6/m2/m2/m) : P6/mcc
9.CM.10	Faizievite	K₂Na(Ca₆Na)Ti₄Li₆[Si₆O₁₈]₂[Si₁₂O₃₀]F₂	Tric. 1 : P1

RadioactivityHide

Radioactivity:

Element	% Content	Activity (Bq/kg)	Radiation Type
Uranium (U)	0.0000%	0	α, β, γ
Thorium (Th)	0.0000%	0	α, β, γ
Potassium (K)	3.6907%	1,144	β, γ

For comparison:

Banana: ~15 Bq per fruit
Granite: 1,000–3,000 Bq/kg
EU exemption limit: 10,000 Bq/kg

Note: Risk is shown relative to daily recommended maximum exposure to non-background radiation of 1000 µSv/year. Note that natural background radiation averages around 2400 µSv/year so in reality these risks are probably extremely overstated! With infrequent handling and safe storage natural radioactive minerals do not usually pose much risk.

Interactive Simulator:

Note: The mass selector refers to the mass of radioactive mineral present, not the full specimen, also be aware that the matrix may also be radioactive, possibly more radioactive than this mineral!

Mass of radioactive mineral:

Shielding material:

Activity: –

Distance	Dose rate	Risk
1 cm
10 cm
1 m

The external dose rate (D) from a radioactive mineral is estimated by summing the gamma radiation contributions from its Uranium, Thorium, and Potassium content, disregarding daughter-product which may have a significant effect in some cases (eg 'pitchblende'). This involves multiplying the activity (A, in Bq) of each element by its specific gamma ray constant (Γ), which accounts for its unique gamma emissions. The total unshielded dose at 1 cm is then scaled by the square of the distance (r, in cm) and multiplied by a shielding factor (μ_shield). This calculation provides a 'worst-case' or 'maximum risk' estimate because it assumes the sample is a point source and entirely neglects any self-shielding where radiation is absorbed within the mineral itself, meaning actual doses will typically be lower. The resulting dose rate (D) is expressed in microsieverts per hour (μSv/h).

D = ((A_U × Γ_U) + (A_Th × Γ_Th) + (A_K × Γ_K)) / r² × μ_shield

Other InformationHide

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 SogdianiteHide

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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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References for SogdianiteHide

Reference List:

Dusmatov, V.D., Efimov, A.F., Kataeva, Z.T., Khoroshilova, L.A., Yanulov, K.P. (1968) Sogdianite - a new mineral. Doklady Akademii Nauk SSSR: 182: 1176-1177.

Fleischer, Michael (1969) New Mineral Names. American Mineralogist, 54 (7-8) 1218-1223

Fleischer, M. (1972) New Mineral Names. American Mineralogist, 57 (11-12). 1909-1914

Cooper, Mark A.; Hawthorne, Frank C.; Grew, Edward S. (1999) The crystal chemistry of sogdianite, a milarite-group mineral. American Mineralogist, 84 (5). p.764-768.

Sokolova, E. V., Hawthorne, F. C., Pautov, L. A. (2000) The crystal chemistry of Li-bearing minerals with the milarite-type structure: the crystal structure of end-member sogdianite. The Canadian Mineralogist, 38 (4) 853-859 doi:10.2113/gscanmin.38.4.853

(2001) Sogdianite. Handbook of Mineralogy. Mineralogical Society of America

Geiger, Charles A., Grodzicki, Michael (2012) A 57Fe Mössbauer spectroscopic study of sogdianite: an example of a symmetric electric field gradient around Fe3+. Physics and Chemistry of Minerals, 39 (1) 73-78 doi:10.1007/s00269-011-0461-0

Anthony, John W., Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. - Eds. (2016) Handbook of Mineralogy. https://www.handbookofmineralogy.org/

Gagné, Olivier C., Hawthorne, Frank C. (2016) Chemographic Exploration of the Milarite-Type Structure. The Canadian Mineralogist, 54 (5) 1229-1247 doi:10.3749/canmin.1500088

Localities for SogdianiteHide

Showing 4 localities.

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.

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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.


Japan
Ehime Prefecture Ochi District Iwagi Island ⓘ Mount Kuresaka	Imaoka et al. (2021)

South Africa
Northern Cape John Taolo Gaetsewe District Municipality Joe Morolong Local Municipality ⓘ Wessels Mine	Michael O’Donoghue et al. (2006)

Tajikistan (TL)
Districts of Republican Subordination ⓘ Dara-i-Pioz Massif (TL)	Dusmatov et al. (1968) +5 other references

USA
Washington Okanogan County Golden Horn Batholith ⓘ Washington Pass	Micro Probe Volume VI Number 8 +1 other reference

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Sogdianite

About SogdianiteHide

Unique IdentifiersHide

IMA Classification of SogdianiteHide

Classification of SogdianiteHide

Mineral SymbolsHide

Physical Properties of SogdianiteHide

Optical Data of SogdianiteHide

Chemistry of SogdianiteHide

Crystallography of SogdianiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of SogdianiteHide

Other Language Names for SogdianiteHide

Relationship of Sogdianite to other SpeciesHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

RadioactivityHide

Other InformationHide

Internet Links for SogdianiteHide

References for SogdianiteHide

Localities for SogdianiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide