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Szmikite

Collectors Summary

Color grauweiß
Streak color weiß
Hardness (Mohs) 1.5
Solubility +++ H2O
Crystal System monoklin, C2/c

Chemism

Chem­ical formula

MnSO4·H2O

Chem­ical com­po­si­tion

Mangan, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 169.0165939 u; Number of atoms in the formula: 9

Info

Empirical formula:

MnSO4·H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.19

2

22.22

1.0079470

2.0158940

Oxygen

O

47.33

5

55.56

15.9994300

79.9971500

Sulfur

S

18.97

1

11.11

32.0655000

32.0655000

Manganese

Mn

32.50

1

11.11

54.9380499

54.9380499

Anal­y­sis wt%

Ø MnO : 41.70, SO3 : 47.27, H2O : 11.05 (Ref: Dana, 7th ed. 2)

Strunz 9th edi­tion incl. updates

7.CB.05

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
C: Sulfate (Selenate, etc.) ohne weitere Anionen, mit H2O
B: Mit ausschließlich mittelgroßen Kationen
05:Kieserit-Gruppe

Lapis Clas­sifica­tion

VI/C.01-030

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
C: Wasserhaltige Sulfate, ohne fremde Anionen
1: Mittelgroße Kationen; Kieserit-Gruppe

Clas­sifica­tion by Hölzel

7.CA.150

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
C: Sulfates (-Anions +Water)
A: Sulfates, C medium

Dana 8th edi­tion

29.06.02.03

29: Hydrated Acid and Sulfates
06: Hydrated Acid and Sulfates where A XO4 · x(H2O)
02: Kieserite Group (Mono-hydrates)

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

grauweiß

Streak color

weiß

max. Birefrin­gence

0.070

Birefringence chart\! Szmikite title=Birefringence chart Szmikite

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

1.562

RI value β

1.595

RI value γ / ε

1.632

Ri mean

1.596

2V angle

Biaxial (+) 90°~

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell param­e­ters a (Å)

7.758

Cell param­e­ters b (Å)

7.612

Cell param­e­ters c (Å)

7.126

Cell param­e­ters a/b or c/a

1.019

Cell param­e­ters c/b

0.936

Cell param­e­ters α

90°

Cell param­e­ters β

115.72

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

379.126

X-Ray Pow­der Diffrac­tion

4.916(50),
4.855(30),
3.507(100),
3.445(20),
3.361(30),
3.139(50),
2.606(10),
2.580(30)

XRD chart Szmikite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

1.5

VHN (Hard­ness Vick­ers)

18 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.961 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ H2O

Preface

Author (Name, Year)

von Schröckinger, 1877

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 687

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

Szmikite

MnSO4·H2O

monoklin : 2/m : C2/c

7.CB.05

Kieserite

MgSO4·H2O

monoklin : 2/m : C2/c

7.CB.05

Dwornikite

(Ni,Fe2+)SO4·H2O

monoklin : 2/m : C2/c

7.CB.05

Gunningite

(Zn,Mn)SO4·H2O

monoklin : 2/m : C2/c

7.CB.05

Poitevinite

Cu(SO4)·H2O

triklin : 1 : P1

7.CB.05

Szomolnokite

Fe2+SO4·H2O

monoklin : 2/m : C2/c

7.CB.05

Cobaltkieserite

Co[SO4]·H2O

monoklin : 2/m : C2/c

7.CB.05

Voudourisite

CdSO4·H2O

monoklin : 2/m : P21/c

7.CB.05

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

Kieserite

MgSO4·H2O

monoklin : 2/m : C2/c

VI/C.01-010

Szomolnokite

Fe2+SO4·H2O

monoklin : 2/m : C2/c

VI/C.01-020

Szmikite

MnSO4·H2O

monoklin : 2/m : C2/c

VI/C.01-030

Cobaltkieserite

Co[SO4]·H2O

monoklin : 2/m : C2/c

VI/C.01-035

Dwornikite

(Ni,Fe2+)SO4·H2O

monoklin : 2/m : C2/c

VI/C.01-040

Poitevinite

Cu(SO4)·H2O

triklin : 1 : P1

VI/C.01-050

Gunningite

(Zn,Mn)SO4·H2O

monoklin : 2/m : C2/c

VI/C.01-060

'Sanderite'

MgSO4·2H2O

VI/C.01-070

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

Kieserite

MgSO4·H2O

monoklin : 2/m : C2/c

7.CA.100

Poitevinite

Cu(SO4)·H2O

triklin : 1 : P1

7.CA.110

Gunningite

(Zn,Mn)SO4·H2O

monoklin : 2/m : C2/c

7.CA.120

Szomolnokite

Fe2+SO4·H2O

monoklin : 2/m : C2/c

7.CA.130

Dwornikite

(Ni,Fe2+)SO4·H2O

monoklin : 2/m : C2/c

7.CA.140

Szmikite

MnSO4·H2O

monoklin : 2/m : C2/c

7.CA.150

Cobaltkieserite

Co[SO4]·H2O

monoklin : 2/m : C2/c

7.CA.160

Voudourisite

CdSO4·H2O

monoklin : 2/m : P21/c

7.CA.170

Lazaridisite

3CdSO4·8H2O

monoklin : 2/m : C2/c

7.CA.175

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

Bassanite

CaSO4·0.5H2O

monoklin : 2 : I2

29.06.01.01

Kieserite

MgSO4·H2O

monoklin : 2/m : C2/c

29.06.02.01

Szomolnokite

Fe2+SO4·H2O

monoklin : 2/m : C2/c

29.06.02.02

Szmikite

MnSO4·H2O

monoklin : 2/m : C2/c

29.06.02.03

Poitevinite

Cu(SO4)·H2O

triklin : 1 : P1

29.06.02.04

Gunningite

(Zn,Mn)SO4·H2O

monoklin : 2/m : C2/c

29.06.02.05

Dwornikite

(Ni,Fe2+)SO4·H2O

monoklin : 2/m : C2/c

29.06.02.06

Cobaltkieserite

Co[SO4]·H2O

monoklin : 2/m : C2/c

29.06.02.07

Gypsum

CaSO4·2H2O

monoklin : 2/m : I2/a

29.06.03.01

Bonattite

CuSO4·3H2O

monoklin : m : Cc

29.06.05.01

Rozenite

Fe2+SO4·4H2O

monoklin : 2/m : P21/n

29.06.06.01

'Starkeyite'

MgSO4·4H2O

monoklin : 2/m : P21/n

29.06.06.02

Ilesite

(Mn,Zn,Fe2+)SO4·4H2O

monoklin : 2/m : P21/n

29.06.06.03

Aplowite

(Co,Mn,Ni)SO4·4H2O

monoklin : 2/m : P21/n

29.06.06.04

Boyleite

(Zn,Mg)SO4·4H2O

monoklin : 2/m : P21/n

29.06.06.05

Chalcanthite

CuSO4·5H2O

triklin : 1 : P1

29.06.07.01

Siderotil

Fe(SO4)·5H2O

triklin : 1 : P1

29.06.07.02

Pentahydrite

MgSO4·5H2O

triklin : 1 : P1

29.06.07.03

Jôkokuite

MnSO4·5H2O

triklin : 1 : P1

29.06.07.04

Hexahydrite

MgSO4·6H2O

monoklin : 2/m : C2/c

29.06.08.01

Bianchite

(Zn,Fe2+)(SO4)·6H2O

monoklin : 2/m : C2/c

29.06.08.02

Ferrohexahydrite

Fe2+SO4·6H2O

monoklin : 2/m : C2/c

29.06.08.03

Nickelhexahydrite

(Ni,Mg,Fe2+)(SO4)·6H2O

monoklin : 2/m : A2/a

29.06.08.04

Moorhouseite

(Co,Ni,Mn)SO4·6H2O

monoklin : 2/m : C2/c

29.06.08.05

Chvaleticeite

(Mn2+,Mg)SO4·6H2O

monoklin : 2/m : C2/c

29.06.08.06

Retgersite

NiSO4·6H2O

tetragonal : 422, 422 : P41212, P43212

29.06.09.01

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Ссмикит

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