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Sulphohalite

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Formula:
Na6(SO4)2FCl
System:
Isometric
Colour:
Colourless, gray, ...
Hardness:
Name:
The name is derived from its composition, containing SULFur, plus Greek "hals", salt, alluding to its content of halogens.

Classification of Sulphohalite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
7.BD.05

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
D : With only large cations
30.1.7.1

30 : ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)m(XO4)pZq, where m:p>2:1
26.2

26 : Sulphates with Halide
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First Recorded Occurrence of Sulphohalite

Physical Properties of Sulphohalite

Vitreous, Greasy
Diaphaneity (Transparency):
Transparent
Comment:
Luster weak.
Colour:
Colourless, gray, greenish yellow; colourless in transmitted light.
Hardness (Mohs):

Crystallography of Sulphohalite

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Morphology:
Crystals commonly dodecahedral; also octahedral, or with combinations of a, o and d.
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Sulphohalite

Type:
Isotropic

Chemical Properties of Sulphohalite

Formula:
Na6(SO4)2FCl
Essential elements:
All elements listed in formula:

Relationship of Sulphohalite to other Species

7.BD.05Sulfohalite
7.BD.10GaleiteNa15(SO4)5F4Cl
7.BD.10SchaireriteNa3(SO4)(F,Cl)
7.BD.15KogarkoiteNa3(SO4)F
7.BD.20CaracoliteNa3Pb2(SO4)3Cl
7.BD.20CesaniteNa3Ca2(SO4)3(OH)
7.BD.20AiolositeNa4Bi(SO4)3Cl
7.BD.25BurkeiteNa6(CO3)(SO4)2
7.BD.30HanksiteNa22K(SO4)9(CO3)2Cl
7.BD.35CannoniteBi2(SO4)O(OH)2
7.BD.40LanarkitePb2(SO4)O
7.BD.45GrandreefitePb2(SO4)F2
7.BD.50ItoitePb3Ge4+(SO4)2O2(OH)2
7.BD.55ChiluiteBi3Te6+Mo6+O10.5
7.BD.60HectorfloresiteNa9(SO4)4(IO3)
7.BD.65PseudograndreefitePb6(SO4)F10
7.BD.70SundiusitePb10(SO4)O8Cl2
26.1KogarkoiteNa3(SO4)F
26.3SchaireriteNa3(SO4)(F,Cl)
26.4GaleiteNa15(SO4)5F4Cl
26.5ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
26.6ChlorothioniteK2Cu(SO4)Cl2
26.7KamchatkiteKCu3(SO4)2OCl
26.8SpangoliteCu6Al(SO4)(OH)12Cl · 3H2O
26.9AubertiteCuAl(SO4)2Cl · 14H2O
26.10Magnesioaubertite(Mg,Cu)Al(SO4)2Cl · 14H2O
26.11Svyazhinite(Mg,Mn2+,Ca)(Al,Fe3+)(SO4)2F · 14H2O
26.12D'AnsiteNa21Mg(SO4)10Cl3
26.13AnhydrokainiteKMg(SO4)Cl
26.14KainiteKMg(SO4)Cl · 3H2O
26.15Mosesite(Hg2N)(Cl,SO4,MoO4) · H2O
26.16Kleinite(Hg2N)(Cl,SO4) · nH2O
26.17WilcoxiteMgAl(SO4)2F · 17H2O
26.18CreediteCa3SO4Al2F8(OH)2 · 2H2O
26.19LannoniteMg2Ca4Al4(SO4)8F8 · 24H2O
26.20Chukhrovite-(Y)Ca3(Y,Ce)[F|SO4|(AlF6)2] · 10H2O
26.21Chukhrovite-(Ce)Ca3(Ce,Y)[F|SO4|(AlF6)2] · 10H2O
26.22GrandreefitePb2(SO4)F2
26.23PseudograndreefitePb6(SO4)F10
26.24SundiusitePb10(SO4)O8Cl2
26.25CaracoliteNa3Pb2(SO4)3Cl
26.26MammothitePb6Cu4AlSb5+O2(OH)16Cl4(SO4)2
26.27AtlasoviteK(BiO)Cu6Fe3+(SO4)5O3Cl
26.28XitieshaniteFe3+(SO4)Cl · 6H2O
26.29NabokoiteKCu7(SO4)5(Te4+O3)OCl

Other Names for Sulphohalite

Name in Other Languages:
Simplified Chinese:卤钠石
Traditional Chinese:鹵鈉石

Other Information

Other Information:
Slowly soluble in cold 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.

References for Sulphohalite

Reference List:
Hidden, W.E. & J.B. MacKintosh (1888), Sulphohalite, a new sodium sulphato-chloride, American Journal of Science, 3rd. series: 36: 463.

Zeitschr. Kristallographie (1889), Band 15: 294.

Penfield, Samuel Lewis (1900), On the chemical composition of sulphohalite: American Journal of Science, 4th. series: 9: 425-428.

E.S. Larsen in Gale and Hicks (1914) American Journal of Science: 38: 273.

Foshag (1920) American Journal of Science: 49: 76.

Foshag, Wm. F. (1933) Sulfohalite and Other Minerals from the Otjiwalundo Salt Pan, South West Africa. American Mineralogist: 18: 431-434.

Pabst (1934) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 89: 514.

Watanabé (1934) Proceedings of the Imperial Academy, Tokyo: 10: 575.

Palache, Charles, Harry Berman & Clifford Frondel (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume II: 548-549.

American Mineralogist (1963): 48: 485-510.

Sakamoto, Y. (1968) The size, atomic charges and motion of the sulfate radical of symmetry 43m in the crystal of sulfohalite, Na6ClF(SO4)2. Hiroshima University Journal of Science, series C: 32: 101-108.

Reviews in Mineralogy and Geochemistry: 10: 1-112.

Omori, K. (1970) Infrared study of sulphohalite. American Mineralogist: 55: 1879-1910.

Mineralogical Magazine (1975): 40: 131-139.

Internet Links for Sulphohalite

Specimens:
The following Sulphohalite specimens are currently listed for sale on minfind.com.

Localities for Sulphohalite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
China
 
Kezao Chen (1992): Quaternary Sciences 3(8), 193-202
Namibia
 
  • Kunene Region
    • Kaokoveld Plateau
Specimen in the collection of the Smithsonian Institute, Museum of Natural History
Foshag, Wm. F. (1933) Sulfohalite and Other Minerals from the Otjiwalundo Salt Pan, South West Africa. American Mineralogist: 18: 431-434; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 549.
USA
 
  • California
    • San Bernardino Co.
Hidden, William Earl & James B. MacKintosh (1888), Sulphohalite a new sodium sulphato-chloride: American Journal of Science, 3rd. series: 36: 464; Penfield, Samuel Lewis (1900), On the chemical composition of sulphohalite: American Journal of Science, 4th. series: 9: 425-428; Pabst, Adolf, Dwight L. Sawyer, Jr. & George S. Switzer (1963), Galeite and related phases in the system Na2SO4.NaF.NaCl: American Mineralogist: 48: 485; Smith, George Irving & D.V. Haines (1964), Character and distribution of nonclastic minerals in the Searles Lake evaporite deposit, California: USGS Bulletin 1181-P: 27; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 281-283; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 340, 549; Mineralogical Magazine (1975): 40: 131; Mineralogical Record (2007): 38: 213.; Gale, Hoyt Stoddard (1915), Mineralogy of the Searles Lake deposits in Salines in the Owens, Searles, and Panamint basins, southeastern California: USGS Bulletin 580: 296-308
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