Konyaite
A valid IMA mineral species
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About Konyaite
Formula:
Na2Mg(SO4)2 · 5H2O
Colour:
White, colourless
Hardness:
2½
Specific Gravity:
2.088
Crystal System:
Monoclinic
Name:
After the locality near Cakmak, Great Konya Basin, Konya Province, Central Anatolia Region, Turkey.
Type Locality:
Higher-hydrate counterpart of blödite.
A water-soluble mineral that occurs as a component of salt efflorescences on saline soils, formed between 30°C and 50°C by evaporation of ground and surface waters.
Related to the Picromerite Group.
Compare UM2008-50-SO:HMgNa and uklonskovite.
A water-soluble mineral that occurs as a component of salt efflorescences on saline soils, formed between 30°C and 50°C by evaporation of ground and surface waters.
Related to the Picromerite Group.
Compare UM2008-50-SO:HMgNa and uklonskovite.
Unique Identifiers
Mindat ID:
2251
Long-form identifier:
mindat:1:1:2251:0
Similar Names
| Kenyaite | A valid IMA mineral species | Na2Si22O41(OH)8 · 6H2O |
IMA Classification of Konyaite
Classification of Konyaite
7.CC.80
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
C : With medium-sized and large cations
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
C : With medium-sized and large cations
29.3.5.1
29 : HYDRATED ACID AND NORMAL SULFATES
3 : A2B(XO4)2·xH2O
29 : HYDRATED ACID AND NORMAL SULFATES
3 : A2B(XO4)2·xH2O
25.3.10
25 : Sulphates
3 : Sulphates of Mg
25 : Sulphates
3 : Sulphates of Mg
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 |
|---|---|---|
| Kny | 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 Konyaite
Transparency:
Transparent
Colour:
White, colourless
Streak:
White
Hardness:
2½ on Mohs scale
Density:
2.088 g/cm3 (Measured) 2.097 g/cm3 (Calculated)
Optical Data of Konyaite
Type:
Biaxial (+)
RI values:
nα = 1.464 nβ = 1.468 nγ = 1.474
2V:
Measured: 74° , Calculated: 80°
Max. Birefringence:
δ = 0.010
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. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
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. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate
Dispersion:
r > v strong
Chemistry of Konyaite
Mindat Formula:
Na2Mg(SO4)2 · 5H2O
Element Weights:
Crystallography of Konyaite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 5.78 Å, b = 24.01 Å, c = 8.67 Å
β = 95.41°
β = 95.41°
Ratio:
a:b:c = 0.241 : 1 : 0.361
Unit Cell V:
1,197.84 ų (Calculated from Unit Cell)
Z:
4
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) |
|---|---|---|---|---|---|---|---|
| 0017884 | Konyaite | Mills S J, Wilson S A, Dipple G M, Raudsepp M (2010) The decomposition of konyaite: importance in CO2 fixation in mine tailings Mineralogical Magazine 74 903-917 | 2010 | synthetic | 0 | 293 | |
| 0004958 | Konyaite | Leduc E M S, Peterson R C, Wang R (2009) The crystal structure and hydrogen bonding of synthetic konyaite, Na2Mg(SO4)2*5H2O American Mineralogist 94 1005-1011 |  | 2009 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.541 Å | (100) |
| 4.017 Å | (45) |
| 3.960 Å | (45) |
| 2.597 Å | (45) |
| 12.01 Å | (40) |
| 4.202 Å | (40) |
| 2.659 Å | (40) |
Comments:
Synthetic. The data are from the type description. Lines for a natural sample are also given, but without intensities.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 25 : Evaporites (prebiotic) | |
| Stage 7: Great Oxidation Event | <2.4 |
| 45b : [Other oxidized fumarolic minerals] | |
| Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere | <0.6 |
| 48 : Soil leaching zone minerals | <0.6 |
| 50 : Coal and/or oil shale minerals | <0.36 |
Geological Setting:
Occurs in salt efflorescences on saline soils, formed between 30° C and 50° C by evaporation of ground and surface waters.
Type Occurrence of Konyaite
General Appearance of Type Material:
Intimate intergrowths with associated minerals.
Place of Conservation of Type Material:
Nationaal Natuurhistorisch Museum, Leiden, Netherlands (type).
Geological Setting of Type Material:
Salt efflorescences on saline soil. The salts originate at the soil surface by evaporation of ground and surface waters.
Associated Minerals at Type Locality:
Synonyms of Konyaite
Other Language Names for Konyaite
Relationship of Konyaite to other Species
Structurally related to group(s):
| Picromerite Group | A2M(XO4)2 · 6H2O |
Common Associates
Associations Based on Photo Data:
| 2 photos of Konyaite associated with Thénardite | Na2SO4 |
| 2 photos of Konyaite associated with Blödite | Na2Mg(SO4)2 · 4H2O |
| 1 photo of Konyaite associated with Picromerite | K2Mg(SO4)2 · 6H2O |
Related Minerals - Strunz-mindat Grouping
| 7.CC. | Cobaltoblödite | Na2Co(SO4)2 · 4H2O |
| 7.CC. | Andychristyite | PbCu2+Te6+O5(H2O) |
| 7.CC. | Ammoniovoltaite | (NH4)2Fe2+5Fe3+3Al(SO4)12(H2O)18 |
| 7.CC.05 | Krausite | KFe(SO4)2 · H2O |
| 7.CC.10 | Tamarugite | NaAl(SO4)2 · 6H2O |
| 7.CC.15 | Mendozite | NaAl(SO4)2 · 11H2O |
| 7.CC.15 | Kalinite | KAl(SO4)2 · 11H2O |
| 7.CC.20 | Alum-(Na) | NaAl(SO4)2 · 12H2O |
| 7.CC.20 | Lonecreekite | (NH4)Fe3+(SO4)2 · 12H2O |
| 7.CC.20 | Alum-(K) | KAl(SO4)2 · 12H2O |
| 7.CC.20 | Tschermigite | (NH4)Al(SO4)2 · 12H2O |
| 7.CC.20 | Lanmuchangite | Tl+Al(SO4)2 · 12H2O |
| 7.CC.25 | Zincovoltaite | K2Zn5Fe3+3Al(SO4)12 · 18H2O |
| 7.CC.25 | Voltaite | K2Fe2+5Fe3+3Al(SO4)12 · 18H2O |
| 7.CC.25 | Magnesiovoltaite | K2Mg5Fe3+3Al(SO4)12 · 18H2O |
| 7.CC.25 | Pertlikite | K2(Fe2+,Mg)2(Mg,Fe3+)4Fe3+2Al(SO4)12 · 18H2O |
| 7.CC.25 | Ammoniomagnesiovoltaite | (NH4)2Mg2+5Fe3+3Al(SO4)12 · 18H2O |
| 7.CC.30 | Kröhnkite | Na2Cu(SO4)2 · 2H2O |
| 7.CC.35 | Ferrinatrite | Na3Fe(SO4)3 · 3H2O |
| 7.CC.40 | Goldichite | KFe(SO4)2 · 4H2O |
| 7.CC.45 | Löweite | Na12Mg7(SO4)13 · 15H2O |
| 7.CC.50 | Nickelblödite | Na2Ni(SO4)2 · 4H2O |
| 7.CC.50 | Blödite | Na2Mg(SO4)2 · 4H2O |
| 7.CC.50 | Changoite | Na2Zn(SO4)2 · 4H2O |
| 7.CC.55 | Leonite | K2Mg(SO4)2 · 4H2O |
| 7.CC.55 | Mereiterite | K2Fe(SO4)2 · 4H2O |
| 7.CC.60 | Nickelpicromerite | K2Ni(SO4)2 · 6H2O |
| 7.CC.60 | Nickelboussingaultite | (NH4)2Ni(SO4)2 · 6H2O |
| 7.CC.60 | Katerinopoulosite | (NH4)2Zn(SO4)2 · 6H2O |
| 7.CC.60 | Picromerite | K2Mg(SO4)2 · 6H2O |
| 7.CC.60 | Cyanochroite | K2Cu(SO4)2 · 6H2O |
| 7.CC.60 | Mohrite | (NH4)2Fe(SO4)2 · 6H2O |
| 7.CC.60 | Boussingaultite | (NH4)2Mg(SO4)2 · 6H2O |
| 7.CC.65 | Polyhalite | K2Ca2Mg(SO4)4 · 2H2O |
| 7.CC.70 | Leightonite | K2Ca2Cu(SO4)4 · 2H2O |
| 7.CC.75 | Amarillite | NaFe(SO4)2 · 6H2O |
| 7.CC.85 | Wattevilleite | Na2Ca(SO4)2 · 4H2O (?) |
| 7.CC.85 | Xocolatlite | Ca2Mn4+2(Te6+O6)2 · H2O |
| 7.CC.90 | Eckhardite | (Ca,Pb)Cu2+Te6+O5(H2O) |
Other Information
Notes:
Very easily soluble in water. Unstable - alters to blödite in a relatively short period of time.
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 Konyaite
mindat.org URL:
https://www.mindat.org/min-2251.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Konyaite
Reference List:
Froehlich, W. (1929) Neuere Forschungsergebnisse über das System MgSO4-Na2SO4-H2O. Zeitschrift für Angewandte Chemie, 42 (24). p.660-662. doi:10.1002/ange.19290422403
van Doesburg, J. D. J, Vergouwen, L., van der Plas, L. (1982) Konyaite, Na2Mg(SO4)2·5H2O, a new mineral from the Great Konya Basin, Turkey. American Mineralogist, 67 (9-10) 1035-1038
Dokoupilová, P., Sracek, O., Losos, Z. (2007) Geochemical behaviour and mineralogical transformations during spontaneous combustion of a coal waste pile in Oslavany, Czech Republic. Mineralogical Magazine, 71 (4) 443-460 doi:10.1180/minmag.2007.071.4.443
Localities for Konyaite
Showing 26 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 | |
| Wilson et al. (2014) |
| Mills et al. (2010) | |
Canada | |
| Kohut et al. (1993) | |
China | |
| Okada et al. (1994) | |
Czech Republic | |
| Matýsek et al. (2026) |
| Dokoupilova P. |
| Hršelová et al. (2013) | |
France | |
| Naze-Nancy Masalehdani et al. (2009) |
Poland | |
| Kruszewski (2013) |
| Kruszewski (2013) | |
Romania | |
| - (2001) |
Russia | |
| Arkhipov et al. (2015) |
| Arkhipov et al. (2015) | |
Slovakia | |
| Szakáll et al. (2014) |
Spain | |
| Vizcayno et al. (1995) |
| Vizcayno et al. (1995) | |
| Joan Rosell-Riba (09/2024) |
| Onac et al. (2014) |
Turkey | |
| Karakaya et al. (1984) |
| Amer.Min. (1982) |
| van Doesburg et al. (1982) | |
USA | |
| Adams et al. (2014) |
| Färber (n.d.) |
| Eckel et al. (1997) |
| Zielinski et al. (2001) | |
| Joe Marty (2015) |
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Dębieńsko Mine heap, Gmina Czerwionka-Leszczyny, Rybnik County, Silesian Voivodeship, Poland