Szmikite
A valid IMA mineral species - grandfathered
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About Szmikite
Formula:
MnSO4 · H2O
Colour:
Dirty-white, rose-red, pale red
Lustre:
Earthy
Hardness:
1½
Specific Gravity:
3.15
Crystal System:
Monoclinic
Member of:
Name:
Named in honor of Ignaz Nathaniel Szmik (1815–1881), Hungarian mining official at Felsöbanya, Hungary (now Baia Sprie, Romania), who discovered the mineral.
Type Locality:
Unique Identifiers
Mindat ID:
3858
Long-form identifier:
mindat:1:1:3858:0
IMA Classification of Szmikite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Mn(SO4) · H2O
First published:
1877
Type description reference:
Classification of Szmikite
7.CB.05
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
B : With only medium-sized cations
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
B : With only medium-sized cations
29.6.2.3
29 : HYDRATED ACID AND NORMAL SULFATES
6 : AXO4·xH2O
29 : HYDRATED ACID AND NORMAL SULFATES
6 : AXO4·xH2O
25.9.1
25 : Sulphates
9 : Sulphates of Mn
25 : Sulphates
9 : Sulphates of Mn
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 |
|---|---|---|
| Szm | 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 Szmikite
Earthy
Transparency:
Translucent
Colour:
Dirty-white, rose-red, pale red
Hardness:
1½ on Mohs scale
Tenacity:
Brittle
Fracture:
Splintery
Density:
3.15 g/cm3 (Measured) 2.946 g/cm3 (Calculated)
Optical Data of Szmikite
Type:
Biaxial (+)
RI values:
nα = 1.562(3) nβ = 1.595(3) nγ = 1.632(3)
2V:
Measured: 90° , Calculated: 90°
Max. Birefringence:
δ = 0.070
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:
strong
Chemistry of Szmikite
Mindat Formula:
MnSO4 · H2O
Element Weights:
Elements listed:
Crystallography of Szmikite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 7.116(1) Å, b = 7.667(1) Å, c = 7.920(2) Å
β = 118.11(1)°
β = 118.11(1)°
Ratio:
a:b:c = 0.928 : 1 : 1.033
Unit Cell V:
381.13 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Stalactitic masses with a botryoidal surface.
Comment:
synthetic
Crystal Structure
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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) |
|---|---|---|---|---|---|---|---|
| 0014851 | Szmikite | Wildner M, Giester G (1991) The crystal structures of kieserite-type compounds. I. Crystal structures of Me(II)SO4*H2O (Me = Mn,Fe,Co,Ni,Zn) Neues Jahrbuch fur Mineralogie, Monatshefte 1991 296-306 | 1991 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.507 Å | (100) |
| 4.916 Å | (50) |
| 3.139 Å | (40) |
| 4.855 Å | (30) |
| 3.361 Å | (30) |
| 2.580 Å | (30) |
| 3.445 Å | (20) |
Comments:
synthetic
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47b : [Sulfates and sulfites] | |
| 47e : [Vanadates, chromates, manganates] | |
| Stage 10b: Anthropogenic minerals | <10 Ka |
| 55 : Anthropogenic mine minerals |
Type Occurrence of Szmikite
General Appearance of Type Material:
Efflorescences. Amorphous stalactitic form, with botryoidal surface.
Geological Setting of Type Material:
Post-mining
Other Language Names for Szmikite
Relationship of Szmikite to other Species
Member of:
Other Members of Kieserite Group:
| Cobaltkieserite | CoSO4 · H2O | Mon. 2/m : B2/b |
| Dwornikite | Ni(SO4) · H2O | Mon. 2/m : B2/b |
| Ermeloite | Al(PO4) · H2O | Mon. 2/m : B2/b |
| Gunningite | ZnSO4 · H2O | Mon. 2/m : B2/b |
| Kieserite | MgSO4 · H2O | Mon. 2/m : B2/b |
| Serrabrancaite | MnPO4 · H2O | Mon. 2/m : B2/b |
| Szomolnokite | FeSO4 · H2O | Mon. 2/m : B2/b |
Common Associates
Associations Based on Photo Data:
| 2 photos of Szmikite associated with Rhodochrosite | MnCO3 |
| 1 photo of Szmikite associated with Kutnohorite | CaMn2+(CO3)2 |
Related Minerals - Strunz-mindat Grouping
| 7.CB. | Sarvodaite | Al2(SO4)3 · 5H2O |
| 7.CB.02 | Voudourisite | CdSO4 · H2O |
| 7.CB.05 | Szomolnokite | FeSO4 · H2O |
| 7.CB.05 | Cobaltkieserite | CoSO4 · H2O |
| 7.CB.05 | Dwornikite | Ni(SO4) · H2O |
| 7.CB.05 | Kieserite | MgSO4 · H2O |
| 7.CB.05 | Poitevinite | (Cu,Fe)SO4 · H2O |
| 7.CB.05 | Gunningite | ZnSO4 · H2O |
| 7.CB.07 | Sanderite | MgSO4 · 2H2O |
| 7.CB.10 | Bonattite | CuSO4 · 3H2O |
| 7.CB.12 | Belogubite | CuZn(SO4)2 · 10H2O |
| 7.CB.15 | Drobecite | CdSO4 · 4H2O |
| 7.CB.15 | Aplowite | CoSO4 · 4H2O |
| 7.CB.15 | Cranswickite | MgSO4 · 4H2O |
| 7.CB.15 | Rozenite | FeSO4 · 4H2O |
| 7.CB.15 | Starkeyite | MgSO4 · 4H2O |
| 7.CB.15 | Ilesite | Mn2+(SO4) · 4H2O |
| 7.CB.15 | Boyleite | ZnSO4 · 4H2O |
| 7.CB.20 | Siderotil | FeSO4 · 5H2O |
| 7.CB.20 | Jôkokuite | MnSO4 · 5H2O |
| 7.CB.20 | Pentahydrite | MgSO4 · 5H2O |
| 7.CB.20 | Chalcanthite | CuSO4 · 5H2O |
| 7.CB.25 | Chvaleticeite | Mn2+(H2O)6(SO4) |
| 7.CB.25 | Nickelhexahydrite | Ni2+(H2O)6(SO4) |
| 7.CB.25 | Hexahydrite | Mg(H2O)6(SO4) |
| 7.CB.25 | Bianchite | Zn(H2O)6(SO4) |
| 7.CB.25 | Moorhouseite | Co2+(H2O)6(SO4) |
| 7.CB.25 | Ferrohexahydrite | Fe2+(H2O)6(SO4) |
| 7.CB.30 | Retgersite | NiSO4 · 6H2O |
| 7.CB.35 | Zincmelanterite | Zn(H2O)6(SO4) · H2O |
| 7.CB.35 | Melanterite | Fe2+(H2O)6(SO4) · H2O |
| 7.CB.35 | Alpersite | (Mg,Cu2+)(H2O)6(SO4) · H2O |
| 7.CB.35 | Bieberite | Co2+(H2O)6(SO4) · H2O |
| 7.CB.35 | Boothite | Cu2+(H2O)6(SO4) · H2O |
| 7.CB.35 | Mallardite | Mn2+(H2O)6(SO4) · H2O |
| 7.CB.40 | Epsomite | MgSO4 · 7H2O |
| 7.CB.40 | Goslarite | ZnSO4 · 7H2O |
| 7.CB.40 | Morenosite | NiSO4 · 7H2O |
| 7.CB.45 | Meta-alunogen | Al2(SO4)3 · 12H2O |
| 7.CB.45 | Alunogen | Al2(SO4)3 · 17H2O |
| 7.CB.50 | Aluminocoquimbite | Al2Fe2(SO4)6(H2O)12 · 6H2O |
| 7.CB.50 | Lazaridisite | Cd3(SO4)3 · 8H2O |
| 7.CB.52 | Pararaisaite | CuMg[Te6+O4(OH)2] · 6H2O |
| 7.CB.55 | Paracoquimbite | Fe4(SO4)6(H2O)12 · 6H2O |
| 7.CB.55 | Rhomboclase | (H5O2)Fe3+(SO4)2 · 2H2O |
| 7.CB.55 | Raisaite | CuMg[Te6+O4(OH)2] · 6H2O |
| 7.CB.55 | Coquimbite | AlFe3(SO4)6(H2O)12 · 6H2O |
| 7.CB.57 | 'Caichengyunite' | Fe2+3Al2(SO4)6 · 30H2O |
| 7.CB.60 | Kornelite | Fe2(SO4)3 · 7H2O |
| 7.CB.65 | Quenstedtite | Fe2(SO4)3 · 11H2O |
| 7.CB.70 | Lausenite | Fe2(SO4)3 · 5H2O |
| 7.CB.75 | Römerite | Fe2+Fe3+2(SO4)4 · 14H2O |
| 7.CB.75 | Lishizhenite | ZnFe2(SO4)4 · 14H2O |
| 7.CB.80 | Ransomite | CuFe2(SO4)4 · 6H2O |
| 7.CB.85 | Dietrichite | ZnAl2(SO4)4 · 22H2O |
| 7.CB.85 | Halotrichite | Fe2+Al2(SO4)4 · 22H2O |
| 7.CB.85 | Apjohnite | Mn2+Al2(SO4)4 · 22H2O |
| 7.CB.85 | Redingtonite | Fe2+Cr3+2(SO4)4 · 22H2O |
| 7.CB.85 | Pickeringite | MgAl2(SO4)4 · 22H2O |
| 7.CB.85 | Bílinite | Fe2+Fe3+2(SO4)4 · 22H2O |
| 7.CB.85 | Wupatkiite | Co2+Al2(SO4)4 · 22H2O |
| 7.CB.90 | Meridianiite | MgSO4 · 11H2O |
Other Information
Notes:
Soluble in water
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 Szmikite
mindat.org URL:
https://www.mindat.org/min-3858.html
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References for Szmikite
Reference List:
Localities for Szmikite
Showing 19 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.
Australia | |
| Museum Victoria Mineralogy Collection +1 other reference |
Austria | |
| Exel (1993) |
Canada | |
| Sabina (1992) +1 other reference |
| Jambor et al. (1962) |
| Jambor et al. (1962) |
| Sabina (1992) +1 other reference | |
France | |
| Wittern et al. (1997) |
Greece | |
| Skarpelis et al. (2004) |
Italy | |
| Bortolozzi G. (2010) |
Japan | |
| - (n.d.) +1 other reference |
| Encyclopedia of Minerals |
Mexico | |
| Gazquez et al. (1) |
Romania (TL) | |
| Anthony et al. (2003) |
| 1-Rădulescu Dan +7 other references | |
| Marias Francisc | |
| Udubasa et al. (1996) +1 other reference |
Russia | |
| Kasatkin et al. (2014) |
Switzerland | |
| Stalder et al. (1998) |
| Stalder et al. (1998) |
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Molinello Mine, Ne, Genoa, Liguria, Italy