Tatarskite
A valid IMA mineral species
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About Tatarskite
Vitaly B. Tatarsky
Formula:
Ca6Mg2(SO4)2(CO3)2(OH)4Cl4 · 7H2O
Colour:
Colourless to very pale yellow.
Lustre:
Vitreous, Pearly
Hardness:
2½
Specific Gravity:
2.341
Crystal System:
Orthorhombic
Name:
Named after Vitaly Borisovich Tatarsky (Виталий Борисович Татарский) (5 November 1907, Pskov, Russian Empire - 27 February 1993, Russia), professor of mineralogy, Leningrad State University (Russia). He researched sedimentary rocks and was a specialist in crystal optics.
This page provides mineralogical data about Tatarskite.
Unique Identifiers
Mindat ID:
3894
Long-form identifier:
mindat:1:1:3894:8
IMA Classification of Tatarskite
Approved
IMA Formula:
Ca6Mg2(S6+O4)2(CO3)2(OH)4Cl4·7H2O
First published:
1963
Classification of Tatarskite
7.DG.25
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
G : With large and medium-sized cations; with NO3, CO3, B(OH)4, SiO4 or IO3
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
G : With large and medium-sized cations; with NO3, CO3, B(OH)4, SiO4 or IO3
32.4.2.1
32 : COMPOUND SULFATES
4 : Hydrated Compound Sulfates containing Hydroxyl or Halogen
32 : COMPOUND SULFATES
4 : Hydrated Compound Sulfates containing Hydroxyl or Halogen
12.2.9
12 : Carbonates with other anions
2 : Carbonates with sulphate
12 : Carbonates with other anions
2 : Carbonates with sulphate
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Tts | 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 Tatarskite
Vitreous, Pearly
Transparency:
Transparent
Comment:
pearly on cleavage
Colour:
Colourless to very pale yellow.
Hardness:
2½ on Mohs scale
Cleavage:
Distinct/Good
Two sets of distinct pinacoidal cleavages
Two sets of distinct pinacoidal cleavages
Density:
2.341 g/cm3 (Measured)
Optical Data of Tatarskite
Type:
Biaxial (-)
RI values:
nα = 1.567(2) nβ = 1.654(2) nγ = 1.722(2)
2V:
Measured: 83° , Calculated: 83°
Max. Birefringence:
δ = 0.155
Based on recorded range of RI values above.
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.
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.
Surface Relief:
Moderate
Dispersion:
r > v strong
Chemistry of Tatarskite
Mindat Formula:
Ca6Mg2(SO4)2(CO3)2(OH)4Cl4 · 7H2O
Element Weights:
Crystallography of Tatarskite
Crystal System:
Orthorhombic
Morphology:
coarsely crystalline masses, to 3 cm.
Comment:
Point Group: n.d.; Space Group: n.d. Z = n.d.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.967 Å | (10) |
| 2.625 Å | (9) |
| 5.34 Å | (8) |
| 2.004 Å | (8) |
| 2.917 Å | (7) |
| 1.585 Å | (7) |
| 2.522 Å | (6) |
| 2.310 Å | (6) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 25 : Evaporites (prebiotic) |
Type Occurrence of Tatarskite
General Appearance of Type Material:
coarsely crystalline masses, to 3 cm.
Place of Conservation of Type Material:
Mining Institute, St. Petersburg, 948/1-2; A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 79820.
Geological Setting of Type Material:
Secondary mineral from marine salt deposit
Associated Minerals at Type Locality:
Other Language Names for Tatarskite
Related Minerals - Strunz-mindat Grouping
| 7.DG. | Mathesiusite | K5(UO2)4(SO4)4(VO5) · 4H2O |
| 7.DG.05 | Darapskite | Na3(SO4)(NO3) · H2O |
| 7.DG.10 | Clinoungemachite | (Na, K, Fe, SO4) |
| 7.DG.10 | Humberstonite | Na7K3Mg2(SO4)6(NO3)2 · 6H2O |
| 7.DG.10 | Ungemachite | K3Na8Fe(SO4)6(NO3)2 · 6H2O |
| 7.DG.15 | Chiyokoite | Ca3Si(CO3)[B(OH)4]O (OH)5 · 12H2O |
| 7.DG.15 | Kottenheimite | Ca 3Si(SO4)2(OH)6 · 12H2O |
| 7.DG.15 | Hielscherite | Ca3Si(SO4)(SO3)(OH)6 · 11H2O |
| 7.DG.15 | Jouravskite | Ca3Mn4+(SO4)(CO3)(OH)6 · 12H2O |
| 7.DG.15 | Thaumasite | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| 7.DG.15 | Bentorite | Ca6Cr2(SO4)3(OH)12 · 26H2O |
| 7.DG.15 | Carraraite | Ca3(SO4)[Ge(OH)6](CO3) · 12H2O |
| 7.DG.15 | Ettringite | Ca6Al2(SO4)3(OH)12 · 26H2O |
| 7.DG.15 | Birunite | Ca18(SiO3)8.5(CO3)8.5SO4 · 15H2O(?) |
| 7.DG.15 | Siwaqaite | Ca6Al2(CrO4)3(OH)12 · 26H2O |
| 7.DG.15 | Buryatite | Ca3(Si,Fe3+,Al)(SO4)B(OH)4(OH,O)6 · 12H2O |
| 7.DG.15 | Charlesite | Ca6(Al,Si)2(SO4)2[B(OH)4](OH,O)12 · 26H2O |
| 7.DG.15 | Tatarinovite | Ca3Al(SO4)[B(OH)4](OH)6 · 12H2O |
| 7.DG.15 | Imayoshiite | Ca3Al(CO3)[B(OH)4](OH)6 · 12H2O |
| 7.DG.15 | Sturmanite | Ca6Fe3+2(SO4)2.5[B(OH)4](OH)12 · 25H2O |
| 7.DG.20 | Rapidcreekite | Ca2(SO4)(CO3) · 4H2O |
| 7.DG.30 | Nakauriite | Cu8(SO4)4(CO3)(OH)6 · 48H2O |
| 7.DG.35 | Chessexite | (Na,K)4Ca2(Mg,Zn)3Al8(SO4)10(SiO4)2 · 40H2O |
| 7.DG.40 | Fuenzalidaite | K6(Na,K)4Na6Mg10(SO4)12(IO3)12 · 12H2O |
| 7.DG.40 | Carlosruizite | K6(Na,K)4Na6Mg10(SeO4)12(IO3)12 · 12H2O |
| 7.DG.45 | 'Chelyabinskite' | (Ca,Mg)3(SO4,CO3)2[Si(OH)6] · 9H2O (?) |
| 7.DG.55 | Ramazzoite | [Mg8Cu12(PO4)(CO3)4(OH)24(H2O)20][(H0.33SO4)3(H2O)36] |
| 7.DG.60 | Witzkeite | Na4K4Ca(NO3)2(SO4)4 · 2H2O |
Other Information
Notes:
Soluble in boiling H2O
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 Tatarskite
mindat.org URL:
https://www.mindat.org/min-3894.html
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References for Tatarskite
Localities for Tatarskite
Showing 2 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Kazakhstan | |
| Evseev (1995) |
| Lobanova (1963) +2 other references |
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Chelkar salt dome, Aksai Valley, Terekti District, West Kazakhstan Region, Kazakhstan