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Szmikite (Szmikit)

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

IMA Classification

IMA Classification

Kieserite group

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

Volume (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

IMA group assignments


 
 
Co[SO4]·H2O
monoklin
C2/c

 
 
(Ni,Fe2+)SO4·H2O
monoklin
C2/c

 
 
(Zn,Mn)SO4·H2O
monoklin
C2/c

 
 
MgSO4·H2O
monoklin
C2/c

 
 
Mn3+[PO4]·H2O
monoklin
C2/c

 
 
MnSO4·H2O
monoklin
C2/c

 
 
Fe2+SO4·H2O
monoklin
C2/c

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Actuality: 28. Mar 2024 - 20:16:58

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Ссмикит

CNMNC symbol

Symbol

Szm

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 424tsiS8KUu2R0qOcJ_CuQ
GUID (Global unique identifier) B22D6EE3-BC24-4B29-B647-4A8E709FC2B9
Database ID 3728