Learning Center What is a mineral?The most common minerals on earth Information for Educators Mindat Articles The Elements The Rock H. Currier Digital Library Geologic Time

Minerals by Properties Minerals by Chemistry Advanced Locality Search Random Mineral Random Locality Search by minID Localities Near Me Search Articles Search Glossary More Search Options

The Mindat Manual Add a New Photo Rate Photos Locality Edit Report Coordinate Completion Report Add Glossary Item

Mining Companies Statistics Users Mineral Museums Clubs & Organizations Mineral Shows & Events The Mindat Directory Device Settings The Mineral Quiz

Photo Search Photo Galleries Search by Color New Photos Today New Photos Yesterday Members' Photo Galleries Past Photo of the Day Gallery Photography

Thomsonite-Sr

A valid IMA mineral species

This page is currently not sponsored. Click here to sponsor this page.

Photos of Thomsonite-Sr (4)

Thomsonite-Sr Gallery Search Photos of Thomsonite-Sr

Edit Add Synonym Edit CIF structures Clear Cache

Thomsonite-Sr

Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia

Thomsonite-Sr, etc.

Tasarte, La Aldea de San Nicolás, Gran Canaria, Las Palmas Province, Canary Islands, Spain

Thomsonite-Sr

Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia

Thomsonite-Sr

Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia

Thomsonite-Sr, etc.

Tasarte, La Aldea de San Nicolás, Gran Canaria, Las Palmas Province, Canary Islands, Spain

Thomsonite-Sr

Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia

Thomsonite-Sr

Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia

Thomsonite-Sr, etc.

Tasarte, La Aldea de San Nicolás, Gran Canaria, Las Palmas Province, Canary Islands, Spain

Hide all sections | Show all sections

About Thomsonite-SrHide

Thomas Thomson

Formula:

Na(Sr,Ca)₂[Al₅Si₅O₂₀] · 7H₂O

Colour:

Colorless

Lustre:

Vitreous

Hardness:

Specific Gravity:

2.47

Crystal System:

Orthorhombic

Member of:

Thomsonite Subgroup > Zeolite Group

Name:

Named as the Sr-dominant analogue of thomsonite-Ca.

The root name thomsonite is in honor of Thomas Thomson (12 April 1773 Crieff, Perthshire, Scotland - 2 July 1852 Kilmun, Argyleshire, Scotland), professor of chemistry at the University of Glasgow. Thomson was an indefatigable mineral chemist and contributed enormously to the number of accurate chemical analyses of minerals during his career as well as having discovered many new mineral species.

Co-Type Localities:

ⓘ Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
ⓘ Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

Zeolite Group.
The strontium analogue of Thomsonite-Ca.

Unique IdentifiersHide

Mindat ID:

28899

Long-form identifier:

mindat:1:1:28899:6

GUID
(UUID V4):

6b0e2441-4135-4ca9-aa0b-c4feb0bc79c2

IMA Classification of Thomsonite-SrHide

IMA status:

Approved

IMA Formula:

NaSr₂(Al₅Si₅)O₂₀ · 6-7H₂O

Approval year:

2000

First published:

2001

Classification of Thomsonite-SrHide

Strunz-mindat (2024):

9.GA.10

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H₂O; zeolite family
A : Zeolites with T₅O₁₀ Units – The Fibrous Zeolites

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
Thm-Sr	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Tmp	Kretz (1983)	Kretz, R. (1983) Symbols of rock-forming minerals. American Mineralogist, 68, 277–279.
Thm	Whitney & Evans (2010)	Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371
Thm	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 Thomsonite-SrHide

Lustre:

Vitreous

Transparency:

Transparent

Colour:

Colorless

Streak:

White

Hardness:

5 on Mohs scale

Tenacity:

Brittle

Cleavage:

Perfect
[100] Perfect, [010] Good

Density:

2.47 g/cm³ (Measured) 2.62 g/cm³ (Calculated)

Optical Data of Thomsonite-SrHide

Type:

Biaxial (+)

RI values:

n_α = 1.528 n_β = 1.532 n_γ = 1.540

2V:

Measured: 62° , Calculated: 72°

Max Birefringence:

δ = 0.012

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

Surface Relief:

Low

Dispersion:

weak, r > v

Optical Extinction:

X = a, Y = c, Z = b.

Pleochroism:

Non-pleochroic

Chemistry of Thomsonite-SrHide

Mindat Formula:

Na(Sr,Ca)₂[Al₅Si₅O₂₀] · 7H₂O

Elements listed:

Al, Ca, H, Na, O, Si, Sr - search for minerals with similar chemistry

Crystallography of Thomsonite-SrHide

Crystal System:

Orthorhombic

Class (H-M):

mmm (2/m 2/m 2/m) - Dipyramidal

Cell Parameters:

a = 13.050 Å, b = 13.123 Å, c = 13.241 Å

Ratio:

a:b:c = 0.994 : 1 : 1.009

Unit Cell V:

2,267.59 Å³ (Calculated from Unit Cell)

Morphology:

Forms: {100}, {010}, {0О1}, {110}.

Twinning:

None observed.

Comment:

Non-standard space-group setting Pcnn.

Crystal StructureHide

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

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

Rotation
Stop | Start

Labels
Console Off | On | Grey | Yellow

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)
0012495	Thomsonite-Sr	Gurbanova O A, Rastsvetaeva R K, Pekov I V, Turchkova A G (2001) Crystal structure of strontium-rich thomsonite Doklady Akademii Nauk SSSR 376 387-390		2001	Khibiny alkaline massif, Kola peninsula, Russia	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Thomsonite-Sr'
loop_
_publ_author_name
'Gurbanova O A'
'Rastsvetaeva R K'
'Pekov I V'
'Turchkova A G'
_journal_name_full 'Doklady Akademii Nauk SSSR'
_journal_volume 376 
_journal_year 2001
_journal_page_first 387
_journal_page_last 390
_publ_section_title
;
 Crystal structure of strontium-rich thomsonite
;
_database_code_amcsd 0012495
_chemical_compound_source 'Khibiny alkaline massif, Kola peninsula, Russia'
_chemical_formula_sum 'Na1.2 Ca1.28 Sr.52 Si5.2 Al4.8 O26 H12'
_cell_length_a 13.050
_cell_length_b 13.123
_cell_length_c 13.241
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 2267.589
_exptl_crystal_density_diffrn      2.426
_symmetry_space_group_name_H-M 'P c n n'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2-z'
  '1/2+x,1/2+y,-z'
  '1/2-x,1/2-y,z'
  '-x,y,1/2+z'
  'x,-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_occupancy
_atom_site_U_iso_or_equiv
NaM   0.50610   0.05780   0.36130   0.60000   0.01469
CaM   0.50610   0.05780   0.36130   0.40000   0.01469
Sr   0.50000   0.50000   0.50000   0.52000   0.02102
Ca   0.03160   0.00300   0.00200   0.24000   0.02533
Si1   0.25000   0.25000   0.69060   1.00000   0.00836
Si2   0.30440   0.11280   0.00240   1.00000   0.00697
Si3   0.38410   0.30620   0.37540   1.00000   0.01140
Al1   0.75000   0.25000   0.68740   0.96000   0.01393
SiAl1   0.75000   0.25000   0.68740   0.04000   0.01393
Al2   0.30380   0.12020   0.49310   0.96000   0.01456
SiAl2   0.30380   0.12020   0.49310   0.04000   0.01456
Al3   0.62340   0.30940   0.38260   0.96000   0.01102
SiAl3   0.62340   0.30940   0.38260   0.04000   0.01102
O1   0.31420   0.16860   0.61850   1.00000   0.02026
O2   0.69670   0.15850   0.61330   1.00000   0.01520
O3   0.32990   0.31900   0.75650   1.00000   0.01646
O4   0.65700   0.30340   0.76250   1.00000   0.01013
O5   0.36040   0.00490   0.49600   1.00000   0.01393
O6   0.63110   0.18230   0.42390   1.00000   0.02406
O7   0.38520   0.18890   0.41860   1.00000   0.01267
O8   0.81470   0.10390   0.45980   1.00000   0.02153
O9   0.17990   0.11960   0.45330   1.00000   0.01520
O10   0.99530   0.14720   0.88160   1.00000   0.01267
Wat1   0.50700   0.12590   0.18770   1.00000   0.02913
Wat2   0.00800   0.11230   0.14340   1.00000   0.03546
Wat3   0.65180   0.00000   0.75000   1.00000   0.02786
Wat4   0.34380   0.00000   0.75000   1.00000   0.04306

X-Ray Powder DiffractionHide

Image Loading

Radiation - Copper Kα
Data courtesy of RRUFF project at University of Arizona, used with permission.

Powder Diffraction Data:

d-spacing	Intensity
2.691 Å	(100)
2.86 Å	(100)
2.96 Å	(100)
3.49 Å	(90)
3.19 Å	(80)
4.66 Å	(80)
6.63 Å	(70)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Near-surface Processes
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)

Type Occurrence of Thomsonite-SrHide

Co-Type Localities:

ⓘ Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
ⓘ Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

General Appearance of Type Material:

Euhedral prismatic crystals up to 1.0 x 0.2 x 0.2 mm (Rasvumchorr) and zones up to 0.02 mm (Yuksporr).

Place of Conservation of Type Material:

A.E. Fersman Mineralogical Museum, Moscow, Russia.

Geological Setting of Type Material:

In veinlets cross-cutting natrolite of risschorrite pegmatite (Rasvumchorr). In a veinlet cross-cutting urtite, as zones in thomsonite-Ca (Yuksporr).

Associated Minerals at Type Locality:

Microcline	Aegirine	Annite	Astrophyllite	Magnetite
Fluorapatite	Pyrophanite	Thomsonite-Ca	Calcite	Fluorapophyllite
Tobermorite	Thaumasite	Baryte

Synonyms of Thomsonite-SrHide

IMA2000-025

Other Language Names for Thomsonite-SrHide

German:Thomsonit-Sr

Russian:Томсонит-Sr

Simplified Chinese:锶杆沸石

Spanish:Thomsonita-Sr

Traditional Chinese:锶桿沸石

Relationship of Thomsonite-Sr to other SpeciesHide

Member of:

Thomsonite Subgroup > Zeolite Group

Other Members of this group:

Thomsonite-Ca

NaCa₂[Al₅Si₅O₂₀] · 6H₂O

Orth. mmm (2/m 2/m 2/m)

Common AssociatesHide

Associated Minerals Based on Photo Data:

1 photo of Thomsonite-Sr associated with Smectite Group	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O
1 photo of Thomsonite-Sr associated with Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
1 photo of Thomsonite-Sr associated with Thomsonite-Ca	NaCa₂[Al₅Si₅O₂₀] · 6H₂O

Related Minerals - Strunz-mindat Grouping Hide

9.GA.05	Gonnardite	(Na,Ca)₂(Si,Al)₅O₁₀ · 3H₂O	Orth.
9.GA.05	Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O	Orth. mm2 : Fdd2
9.GA.05	Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O	Orth. mm2 : Fdd2
9.GA.05	Paranatrolite	Na₂Al₂Si₃O₁₀ · 3H₂O	Mon. m : Bb
9.GA.05	Scolecite	CaAl₂Si₃O₁₀ · 3H₂O	Mon. m : Bb
9.GA.10	Thomsonite-Ca	NaCa₂[Al₅Si₅O₂₀] · 6H₂O	Orth. mmm (2/m 2/m 2/m)
9.GA.15	Edingtonite	Ba[Al₂Si₃O₁₀] · 4H₂O	Orth. 2 2 2 : P2₁ 2₁ 2₁
9.GA.15	Kalborsite	K₆Al₄BSi₆O₂₀(OH)₄Cl	Tet. 4 2m : P4 2₁c
9.GA.20	Tetranatrolite

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 Thomsonite-SrHide

mindat.org URL:

https://www.mindat.org/min-28899.html
Please feel free to link to this page.

Search Engines:

Look for Thomsonite-Sr on Google

Look for Thomsonite-Sr images on Google

Look for Thomsonite-Sr on Bing

Look for Thomsonite-Sr images on Bing

Look for Thomsonite-Sr on DuckDuckGo

Look for Thomsonite-Sr images on DuckDuckGo

Look for Thomsonite-Sr in the Rock H. Currier Digital Library

External Links:

Look for Thomsonite-Sr on Webmineral

Look for Thomsonite-Sr on Wikipedia

Look for Thomsonite-Sr on Mineralien Atlas

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:

Buy from McDougall Minerals

Fine Minerals from Weinrich Minerals, Inc.

Buy from David K Joyce minerals

Wilensky Exquisite Minerals

Buy rare minerals from Excalibur Minerals

High-end worldwide specimens & outstanding customer service

The Arkenstone - Fine Minerals

Blue Gems Australian & International

References for Thomsonite-SrHide

Reference List:

Pekov, I. V., Lovskaya, E. V., Turchkova, A. G., Chukanov, N. V., Zadov, A. E., Rastsvetaeva, R. K., Kononkova, N. N. (2001) Thomsonite-Sr (Sr,Ca)₂Na[Al₂Si₅O₂₀]·6–7H₂O, a new zeolite mineral from Khibiny Massif (Kola Peninsula) and thomsonite-Ca—thomsonite-Sr an isomorphous series. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva, 130 (4) 46-55

Gurbanova, O. A., Rastsvetaeva, R. K., Pekov, I. V., Turchkova, A. G. (2001) Crystal structure of strontium-rich thomsonite. Doklady Earth Sciences, 376. 101-104

Gurbanova, O. A., Rastsvetaeva, R. K., Pekov, I. V., Turchkova, A. G. (2001) Crystal structure of strontium-rich thomsonite. Doklady Akademii Nauk, 376. 387-390

Jambor, John L., Roberts, Andrew C. (2001) New mineral names. American Mineralogist, 86 (9) 1112-1115

Jambor, John L., Grew, Edward S., Roberts, Andrew C. (2002) New mineral names. American Mineralogist, 87. 1509-1513

Mandarino, Joseph A. (2002) New minerals. The Canadian Mineralogist, 40. 1527-1550

Lee, Y., Hriljac, J. A., Studer, A., Vogt, T. (2004) Anisotropic compression of edingtonite and thomsonite to 6 GPa at room temperature. Physics and Chemistry of Minerals, 31 (1) 22-27 doi:10.1007/s00269-003-0330-6

(2023) Thomsonite-Sr. Handbook of Mineralogy. Mineralogical Society of America

Localities for Thomsonite-SrHide

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.


Japan
Niigata Prefecture ⓘ Itoigawa City	... +1 other reference
Ōmi ⓘ Hime River (Himekawa)	Miyajima (1999)

Myanmar
Kachin State Mohnyin District Hpakant Township (Hpakan; Phakant; Phakan) ⓘ Hpakant-Tawmaw Jade Tract	Shi et al. (2012)

Russia (TL)
Murmansk Oblast Khibiny Massif ⓘ Rasvumchorr Mt (TL)	Pekov et al. (2001) +1 other reference
ⓘ Yukspor Mt (TL)	Pekov et al. (2001) +1 other reference

Thomsonite-Sr

About Thomsonite-SrHide

Unique IdentifiersHide

IMA Classification of Thomsonite-SrHide

Classification of Thomsonite-SrHide

Mineral SymbolsHide

Physical Properties of Thomsonite-SrHide

Optical Data of Thomsonite-SrHide

Chemistry of Thomsonite-SrHide

Crystallography of Thomsonite-SrHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of Thomsonite-SrHide

Synonyms of Thomsonite-SrHide

Other Language Names for Thomsonite-SrHide

Relationship of Thomsonite-Sr to other SpeciesHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for Thomsonite-SrHide

References for Thomsonite-SrHide

Localities for Thomsonite-SrHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide