Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Konyaite

Big Photo

Great Konya Basin, Konya Province, Central Anatolia Region, Turkey
© 2008, JGW

Formula:
Na
 
2
Mg(SO
 
4
)
 
2
·5H
 
2
O
System:MonoclinicColour:White, colourless
Lustre:Hardness:2½
Name:After the locality near Cakmak, Great Konya Basin, Konya Province, Central Anatolia Region, Turkey.


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.

Classification of Konyaite

IMA status:Approved
Strunz 8th edition ID:6/C.18-40
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:29.3.5.1

29 : HYDRATED ACID AND NORMAL SULFATES
3 : A2B(XO4)2·xH2O
Hey's CIM Ref.:25.3.10

25 : Sulphates
3 : Sulphates of Mg
mindat.org URL:http://www.mindat.org/min-2251.html
Please feel free to link to this page.

Type Occurrence of Konyaite

Type Locality:Cakmak, Great Konya Basin, Konya Province, Central Anatolia Region, Turkey
Year of Discovery:1982

Occurrences of Konyaite

Geological Setting:Occurs in salt efflorescences on saline soils, formed between 30° C and 50° C.
by evaporation of ground and surface waters.

Physical Properties of Konyaite

Diaphaneity (Transparency):Transparent
Colour:White, colourless
Hardness (Mohs):2½
Density (measured):2.088 g/cm3
Density (calculated):2.097 g/cm3

Crystallography of Konyaite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/b {P1 1 21/b} {P21/c} {P1 21/c 1} {P21/a}
Cell Parameters:a = 5.78Å, b = 24.01Å, c = 8.67Å
β = 95.41°
Ratio:a:b:c = 0.241 : 1 : 0.361
Unit Cell Volume:V 1,197.84 ų (Calculated from Unit Cell)
Z:4

Optical Data of Konyaite

Type:Biaxial (+)
RI values: nα = 1.464 nβ = 1.468 nγ = 1.474
2V:Measured: 74° , Calculated: 80°
Maximum Birefringence:δ = 0.010

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r > v strong

Chemical Properties of Konyaite

Formula:
Na
 
2
Mg(SO
 
4
)
 
2
·5H
 
2
O
Essential elements:H, Mg, Na, O, S
All elements listed in formula:H, Mg, Na, O, S

Relationship of Konyaite to other Species

Common Associates:
TychiteThenarditeStarkeyiteMirabiliteLöweite
HexahydriteHaliteGypsumEpsomiteBurkeite
Blödite
Related Minerals - Nickel-Strunz Grouping):

- +
7.CC.05Krausite
KFe(SO
 
4
)
 
2
·H
 
2
O
7.CC.10Tamarugite
NaAl(SO
 
4
)
 
2
·6H
 
2
O
7.CC.15Kalinite
KAl(SO
 
4
)
 
2
·11H
 
2
O Not confirmed
7.CC.15Mendozite
NaAl(SO
 
4
)
 
2
·11H
 
2
O
7.CC.20Lonecreekite
(NH
 
4
)Fe
3+
 
[SO
 
4
]
 
2
 · 12H
 
2
O
7.CC.20Alum-(K)
KAl[SO
 
4
]
 
2
 · 12H
 
2
O
7.CC.20Alum-(Na)
NaAl[SO
 
4
]
 
2
 · 12H
 
2
O
7.CC.20Tschermigite
(NH
 
4
)Al[SO
 
4
]
 
2
 · 12H
 
2
O
7.CC.20Lanmuchangite
Tl
+
 
Al[SO
 
4
]
 
2
 · 12H
 
2
O
7.CC.25Voltaite
K
 
2
Fe
2+
5
Fe
3+
3
Al[SO
 
4
]
 
12
 · 18H
 
2
O
7.CC.25Zincovoltaite
K
 
2
Zn
 
5
Fe
3+
3
Al[SO
 
4
]
 
12
 · 18H
 
2
O
7.CC.25Pertlikite
K
 
2
(Fe
2+
 
,Mg)
 
2
Mg
 
4
Fe
3+
2
Al(SO
 
4
)
 
12
·4H
 
2
O
7.CC.25IMA2009-040
(NH
 
4
)
 
2
Mg
2+
5
Fe
3+
3
Al[SO
 
4
]
 
12
 · 18H
 
2
O
7.CC.30Kröhnkite
Na
 
2
Cu(SO
 
4
)
 
2
·2H
 
2
O
7.CC.35Ferrinatrite
Na
 
3
Fe(SO
 
4
)
 
3
·3H
 
2
O
7.CC.40Goldichite
KFe(SO
 
4
)
 
2
·4H
 
2
O
7.CC.45Löweite
Na
 
12
Mg
 
7
(SO
 
4
)
 
13
7.CC.50Blödite
Na
 
2
Mg(SO
 
4
)
 
2
·4H
 
2
O
7.CC.50Nickelblödite
Na
 
2
(Ni,Mg)(SO
 
4
)
 
2
·4H
 
2
O
7.CC.50Changoite
Na
 
2
Zn(SO
 
4
)
 
2
·4H
 
2
O
7.CC.50Zincblödite
7.CC.55Leonite
K
 
2
Mg(SO
 
4
)
 
2
·4H
 
2
O
7.CC.55Mereiterite
K
 
2
Fe(SO
 
4
)
 
2
·4H
 
2
O
7.CC.60Boussingaultite
(NH
 
4
)
 
2
Mg(SO
 
4
)
 
2
·6H
 
2
O
7.CC.60Cyanochroite
K
 
2
Cu(SO
 
4
)
 
2
·6H
 
2
O
7.CC.60Mohrite
(NH
 
4
)
 
2
Fe(SO
 
4
)
 
2
·6H
 
2
O
7.CC.60Nickelboussingaultite
(NH
 
4
)
 
2
Ni(SO
 
4
)
 
2
·6H
 
2
O
7.CC.60Picromerite
K
 
2
Mg(SO
 
4
)
 
2
·6H
 
2
O
7.CC.65Polyhalite
K
 
2
Ca
 
2
Mg(SO
 
4
)
 
4
·2H
 
2
O
7.CC.70Leightonite
K
 
2
Ca
 
2
Cu(SO
 
4
)
 
4
·2H
 
2
O
7.CC.75Amarillite
NaFe(SO
 
4
)
 
2
·6H
 
2
O
7.CC.85Wattevilleite
Na
 
2
Ca(SO
 
4
)
 
2
·4H
 
2
O (?)
Related Minerals - Hey's Index Grouping:

- +
25.3.1Kieserite
MgSO
 
4
·H
 
2
O
25.3.2Sanderite
MgSO
 
4
·2H
 
2
O
25.3.3Starkeyite
MgSO
 
4
·4H
 
2
O
25.3.4Pentahydrite
MgSO
 
4
·5H
 
2
O
25.3.5Hexahydrite
MgSO
 
4
·6H
 
2
O
25.3.6Epsomite
MgSO
 
4
·7H
 
2
O
25.3.7Caminite
Mg
 
7
[(OH)
 
4
|(SO
 
4
)
 
5
] · H
 
2
O
25.3.8Vanthoffite
Na
 
6
Mg(SO
 
4
)
 
4
25.3.9Blödite
Na
 
2
Mg(SO
 
4
)
 
2
·4H
 
2
O
25.3.11Löweite
Na
 
12
Mg
 
7
(SO
 
4
)
 
13
25.3.12Uklonskovite
NaMg[F|SO
 
4
] · 2H
 
2
O
25.3.13Langbeinite
K
 
2
Mg
 
2
(SO
 
4
)
 
3
25.3.14Leonite
K
 
2
Mg(SO
 
4
)
 
2
·4H
 
2
O
25.3.15Picromerite
K
 
2
Mg(SO
 
4
)
 
2
·6H
 
2
O
25.3.16Efremovite
(NH
 
4
)
 
2
Mg
 
2
(SO
 
4
)
 
3
25.3.17Boussingaultite
(NH
 
4
)
 
2
Mg(SO
 
4
)
 
2
·6H
 
2
O
25.3.18Pickeringite
MgAl
 
2
(SO
 
4
)
 
4
·22H
 
2
O

Other Names for Konyaite

Synonyms:
IMA1981-003
Other Languages:
German:Konyait
Spanish:Konyaita

Other Information

Other Information:Very easily soluble in water. Unstable - alters to blödite in a relatively short period of time.
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Konyaite

Reference List:van Doesburg, J.D.J., L. Vergouwen, and L. van der Plas (1982) Konyaite,
Na2Mg(SO4)2 •5H2O, a new mineral from the Great Konya Basin, Turkey. American Mineralogist (1982): 67: 1035-1038.

American Mineralogist (1989): 74: 1382.

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, 443-460.

Internet Links for Konyaite

Search Engines:
  • Look for Konyaite on Google
  • Look for Konyaite images on Google
    • External Links:
  • Look for Konyaite on Webmineral
  • Look for Konyaite on Athena Mineralogy
  • Look for Konyaite on Wikipedia
  • Look for Konyaite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Konyaite in the Natural History Museum (London) online catalogue
  • Konyaite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Find Konyaite on www.crystalclassics.co.uk
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Search for - Konyaite - on e-Rocks Mineral Sales & Auctions
  • Edwards Minerals - Fine Specimens
  • rare and unusual minerals mainly crystallized
  • Buy fine minerals and gemstones from Pala International
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Wilensky Fine Minerals
  • Fabre Minerals - search for Konyaite specimens
  • Buy Minerals and Crystals from Crystalarium.com
  • Fine Minerals from Dan Weinrich Minerals
  • Lapis Mineral Magazin
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Konyaite

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Czech Republic
     
    • Moravia (Mähren; Maehren)
      • South Moravia Region
        • Oslavany
    		Dokoupilova P., Sulovsky P., Losos Z. 2006: Hematite, hexahydrite and picromerite group from the mine waste of the coal mine Kukla in Oslavany. Mineralogia Polonica - Special Papers, vol. 28, 57-59
    Romania
     
    • Maramures Co.
      • Rodna (Rodnei) Mts
    		Mineralogical Magazine: 65(1): 1-7.
    Turkey
     
    • Central Anatolia Region
      • Konya Province
        • Great Konya Basin
    		Amer.Min.(1982) 67, 1035-1038
    USA
     
    • Colorado
      • Weld Co.
    		Minerals of Colorado (1997) Eckels, E. B.
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 28th Oct 2009 10:10:49