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
GUID
(UUID V4):
(UUID V4):
de7bb734-accd-4c09-ba95-24c5ad13b038
Classification of Szmikite
Approved, 'Grandfathered' (first described prior to 1959)
First published:
1877
Type description reference:
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 |
---|---|---|
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
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
strong
Chemical Properties of Szmikite
Formula:
MnSO4 · H2O
IMA Formula:
Mn(SO4) · H2O
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
Reference:
von Schröckinger, J. (Freiherr) (1877) A new sulphate of manganese. Mineralogical Magazine: 1: 262-262.
Other Language Names for Szmikite
Relationship of Szmikite to other Species
Member of:
Other Members of this 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
Associated Minerals 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.02 | Voudourisite | CdSO4 · H2O |
7.CB.05 | Dwornikite | Ni(SO4) · H2O |
7.CB.05 | Gunningite | ZnSO4 · H2O |
7.CB.05 | Kieserite | MgSO4 · H2O |
7.CB.05 | Poitevinite | (Cu,Fe)SO4 · H2O |
7.CB.05 | Szomolnokite | FeSO4 · H2O |
7.CB.05 | Cobaltkieserite | CoSO4 · H2O |
7.CB.07 | Sanderite | MgSO4 · 2H2O |
7.CB.10 | Bonattite | CuSO4 · 3H2O |
7.CB.12 | Belogubite | CuZn(SO4)2 · 10H2O |
7.CB.15 | Aplowite | (Co,Mn,Ni)SO4 · 4H2O |
7.CB.15 | Boyleite | (Zn,Mg)SO4 · 4H2O |
7.CB.15 | Ilesite | (Mn,Zn,Fe)SO4 · 4H2O |
7.CB.15 | Rozenite | FeSO4 · 4H2O |
7.CB.15 | Starkeyite | MgSO4 · 4H2O |
7.CB.15 | Drobecite | CdSO4 · 4H2O |
7.CB.15 | Cranswickite | MgSO4 · 4H2O |
7.CB.20 | Chalcanthite | CuSO4 · 5H2O |
7.CB.20 | Jôkokuite | MnSO4 · 5H2O |
7.CB.20 | Pentahydrite | MgSO4 · 5H2O |
7.CB.20 | Siderotil | FeSO4 · 5H2O |
7.CB.25 | Bianchite | Zn(SO4) · 6H2O |
7.CB.25 | Chvaleticeite | Mn(SO4) · 6H2O |
7.CB.25 | Ferrohexahydrite | FeSO4 · 6H2O |
7.CB.25 | Hexahydrite | MgSO4 · 6H2O |
7.CB.25 | Moorhouseite | Co(SO4) · 6H2O |
7.CB.25 | Nickelhexahydrite | Ni(SO4) · 6H2O |
7.CB.30 | Retgersite | NiSO4 · 6H2O |
7.CB.35 | Bieberite | CoSO4 · 7H2O |
7.CB.35 | Boothite | CuSO4 · 7H2O |
7.CB.35 | Mallardite | MnSO4 · 7H2O |
7.CB.35 | Melanterite | Fe2+(H2O)6SO4 · H2O |
7.CB.35 | Zincmelanterite | (Zn,Cu,Fe)SO4 · 7H2O |
7.CB.35 | Alpersite | (Mg,Cu)(SO4) · 7H2O |
7.CB.40 | Epsomite | MgSO4 · 7H2O |
7.CB.40 | Goslarite | ZnSO4 · 7H2O |
7.CB.40 | Morenosite | NiSO4 · 7H2O |
7.CB.45 | Alunogen | Al2(SO4)3 · 17H2O |
7.CB.45 | Meta-alunogen | Al2(SO4)3 · 12H2O |
7.CB.50 | Aluminocoquimbite | Al2Fe2(SO4)6(H2O)12 · 6H2O |
7.CB.50 | Lazaridisite | 3CdSO4 · 8H2O |
7.CB.52 | Pararaisaite | CuMg[Te6+O4(OH)2] · 6H2O |
7.CB.55 | Coquimbite | AlFe3(SO4)6(H2O)12 · 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.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 | Lishizhenite | ZnFe2(SO4)4 · 14H2O |
7.CB.75 | Römerite | Fe2+Fe3+2(SO4)4 · 14H2O |
7.CB.80 | Ransomite | CuFe2(SO4)4 · 6H2O |
7.CB.85 | Apjohnite | Mn2+Al2(SO4)4 · 22H2O |
7.CB.85 | Bílinite | Fe2+Fe3+2(SO4)4 · 22H2O |
7.CB.85 | Dietrichite | (Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2O |
7.CB.85 | Halotrichite | FeAl2(SO4)4 · 22H2O |
7.CB.85 | Pickeringite | MgAl2(SO4)4 · 22H2O |
7.CB.85 | Redingtonite | (Fe2+,Mg,Ni)(Cr,Al)2(SO4)4 · 22H2O |
7.CB.85 | Wupatkiite | (Co,Mg,Ni)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
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).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
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Greece | |
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Italy | |
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Japan | |
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Mexico | |
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Romania (TL) | |
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Molinello Mine, Ne, Genoa, Liguria, Italy