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Tatarskite

Additional Functions

Collectors Summary

Color farblos, hellgelb
Streak color weiß
Hardness (Mohs) 2.5
Solubility +++ HCl, kochendes H2O

Chemism

Chem­ical formula

Ca6Mg2(SO4)2(CO3)2Cl4(OH)4·7H2O

Chem­ical com­po­si­tion

Calcium, Chlor, Magnesium, Kohlenstoff, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 937.174676 u; Number of atoms in the formula: 59

Info

Empirical formula:

Ca6Mg2(SO4)2(CO3)2Cl4(OH)4·7H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.94

18

30.51

1.0079470

18.1430460

Carbon

C

2.56

2

3.39

12.0107800

24.0215600

Oxygen

O

42.68

25

42.37

15.9994300

399.9857500

Magnesium

Mg

5.19

2

3.39

24.3050600

48.6101200

Sulfur

S

6.84

2

3.39

32.0655000

64.1310000

Chlorine

Cl

15.13

4

6.78

35.4532000

141.8128000

Calcium

Ca

25.66

6

10.17

40.0784000

240.4704000

Anal­y­sis wt%

CaO : 36.32, MgO : 6.78, Na2O : 1.22, K2O : 0.78, SO3 : 15.45, Cl : 14.84, CO2 : 9.60, H2O : 17.00 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 63)

Strunz 9th edi­tion incl. updates

7.DG.25

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
D: Sulfate (Selenate, etc.) mit weitere Anionen, mit H2O
G: Mit großen bis mittelgroßen Kationen; mit NO3, CO3, B(OH)4, SiO4 oder IO3
25:Tatarskit-Gruppe

Lapis Clas­sifica­tion

VI/D.19-040

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
19: Mittelgroße und sehr große Kationen

Clas­sifica­tion by Hölzel

7.DO.200

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
D: Sulfates (+Anions +Water)
O: With other complex Anions

Dana 8th edi­tion

32.04.02.01

32: Compound Sulfates
04: Compound Sulfates (hydrous) with poly-anionic formula

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

farblos, hellgelb

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent

max. Birefrin­gence

0.155

Birefringence chart\! Tatarskite title=Birefringence chart Tatarskite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.567

RI value β

1.654

RI value γ / ε

1.722

Ri mean

1.648

2V angle

Biaxial (-) 83°c

Crystallography

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

X-Ray Pow­der Diffrac­tion

5.34(80),
2.967(100),
2.917(70),
2.625(90),
2.522(60),
2.310(60),
2.004(80),
1.585(70)

XRD chart Tatarskite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Physical Properties

Hard­ness (Mohs)

2.5

VHN (Hard­ness Vick­ers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.341

Insta­bil­ity

+++ HCl, kochendes H2O

Preface

Author (Name, Year)

Lobanova, 1963

References

Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 92 (1963), 697

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Tatarskite

Ca6Mg2(SO4)2(CO3)2Cl4(OH)4·7H2O

7.DG.25

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Campigliaite

Mn2+Cu4[(OH)6|(SO4)2]·4H2O

monoklin : 2 : C2

VI/D.19-002

Edwardsite

Cu3Cd2(SO4)2(OH)6·4H2O

monoklin : 2/m : P21/C

VI/D.19-004

Niedermayrite

CdCu4[(OH)6|(SO4)2]·4H2O

monoklin : 2/m : P21/m

VI/D.19-005

Kobyashevite

Cu5(SO4)2(OH)6·4H2O

triklin : 1 : P1

VI/D.19-008

Devilline

CaCu4(SO4)2(OH)6·3H2O

monoklin : 2/m : P21/c

VI/D.19-010

Aldridgeite

(Cd,Ca)(Cu,Zn)4(SO4)2(OH)6·3H2O

monoklin : 2/m : C2/c

VI/D.19-015

Serpierite

Ca(Cu,Zn)4(SO4)2(OH)6·3H2O

monoklin : 2/m : C2/c

VI/D.19-020

Orthoserpierite

Ca(Cu,Zn)4(SO4)2(OH)6·3H2O

orthorhombisch : mm2 : Pca21

VI/D.19-030

Lautenthalite

PbCu42+(OH)6(SO4)2·3H2O

monoklin : 2/m : P21/c

VI/D.19-032

'Arzrunite'

Cu4Pb2SO4O2Cl6·4H2O

VI/D.19-035

Tatarskite

Ca6Mg2(SO4)2(CO3)2Cl4(OH)4·7H2O

VI/D.19-040

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Tatarskite

Ca6Mg2(SO4)2(CO3)2Cl4(OH)4·7H2O

7.DO.200

Rapidcreekite

Ca2(SO4)(CO3)·4H2O

orthorhombisch : mmm : Pcnb

7.DO.220

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Nakauriite

Cu8(SO4)4(CO3)(OH)6·48H2O

32.04.01.01

Tatarskite

Ca6Mg2(SO4)2(CO3)2Cl4(OH)4·7H2O

32.04.02.01

Charlesite

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12·26H2O

trigonal : 3m : P31c

32.04.04.01

Sturmanite

Ca6(Fe3+,Al,Mn2+)2(SO4)2[B(OH)4](OH)12·25H2O

trigonal : 3m : P31c

32.04.04.02

Jouravskite

Ca3Mn4+(SO4,CO3)2(OH)6·12H2O

hexagonal : 6 : P63

32.04.04.03

Thaumasite

Ca3Si(OH)6(CO3)(SO4)·12H2O

hexagonal : 6 : P63

32.04.04.04

Carraraite

Ca3Ga4+[(OH)6|CO3|SO4]·12H2O

hexagonal : 6/m : P63/m

32.04.04.05

Hotsonite

Al5(PO4)(SO4)(OH)10·8H2O

32.04.05.01

Chessexite

Na4Ca2(Mg,Zn)3Al8(SiO4)2(SO4)10(OH)10·40H2O

32.04.06.01

Gordaite

NaZn4[Cl(OH)6|SO4]·6H2O

trigonal : 3 : P3

32.04.07.01

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