Galeite
A valid IMA mineral species - grandfathered
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About Galeite
Formula:
Na15(SO4)5F4Cl
Colour:
Colorless
Specific Gravity:
2.605
Crystal System:
Trigonal
Name:
Named in 1955 by Adolf Pabst, Dwight L. Sawyer, Jr., and George S. Switzer in honor of William Alexander Gale (3 February 1898, Douro, Peterborough, Ontario, Canada – 4 March 1985, California, United States), Director of Research of the American Potash and Chemical Corporation.
Type Locality:
Forms polycrystals with schairerite in the type material.
Can be treated as a 5H antiperovskite polytype, while schairerite - a 7H one.
Can be treated as a 5H antiperovskite polytype, while schairerite - a 7H one.
Unique Identifiers
Mindat ID:
1640
Long-form identifier:
mindat:1:1:1640:3
GUID
(UUID V4):
(UUID V4):
e4611a07-bc7a-4ad2-b66e-ddf2c7bb9633
IMA Classification of Galeite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Na15(SO4)5ClF4
First published:
1955
Classification of Galeite
7.BD.10
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
D : With only large cations
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
D : With only large cations
30.1.8.1
30 : ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)m(XO4)pZq, where m:p>2:1
30 : ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)m(XO4)pZq, where m:p>2:1
26.4
26 : Sulphates with Halide
26 : Sulphates with Halide
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 |
---|---|---|
Gle | 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 Galeite
Transparency:
Transparent
Colour:
Colorless
Streak:
White
Density:
2.605(5) g/cm3 (Measured) 2.596 g/cm3 (Calculated)
Comment:
Calculated density from Fanfani et al. (1975).
Optical Data of Galeite
Type:
Uniaxial (+)
RI values:
nω = 1.447(2) nε = 1.449(2)
Birefringence:
Very low.
Max Birefringence:
δ = 0.002
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
Chemistry of Galeite
Mindat Formula:
Na15(SO4)5F4Cl
Crystallography of Galeite
Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
P3 1m
Cell Parameters:
a = 12.197(4) Å, c = 13.955(10) Å
Ratio:
a:c = 1 : 1.144
Unit Cell V:
1,797.90 ų (Calculated from Unit Cell)
Z:
3
Morphology:
Barrel-shapaed crystals. Forms include {1121}, {2111}, {0001}, {1120}.
Comment:
Cell parameters from Fanfani et al. (1975); complexity: 695.175 bits/cell
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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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) |
---|---|---|---|---|---|---|---|
0014464 | Galeite | Fanfani L, Nunzi A, Zanazzi P F, Zanzari A R (1975) The crystal structure of galeite, Na15(SO4)5F4Cl Mineralogical Magazine 40 357-361 | 1975 | Searles Lake, California, USA | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.79 Å | (100) |
3.52 Å | (80) |
3.68 Å | (70) |
2.55 Å | (70) |
2.97 Å | (60) |
1.758 Å | (60) |
3.04 Å | (40) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Near-surface Processes | |
21 : Chemically precipitated carbonate, phosphate, iron formations | |
25 : Evaporites (prebiotic) |
Type Occurrence of Galeite
General Appearance of Type Material:
Small nodular aggregates of minute white crystals, embedded in clay and other salt minerals. Crystals to about 1 mm. Hexagonal, barrel-shaped, rarely tabular.
Place of Conservation of Type Material:
National Museum of Natural History (Smithsonian), Washington, D.C., USA, 107385.
Geological Setting of Type Material:
Drill core from an evaporite deposit.
Associated Minerals at Type Locality:
Reference:
Pabst, A., Sawyer, D.L., Switzer, G. (1955) Galeite, a new mineral from Searles Lake, California. Geological Society of America Bulletin: 66: 1658-1659.
Other Language Names for Galeite
Related Minerals - Strunz-mindat Grouping
7.BD. | Adanite | Pb2(Te4+O3)(SO4) |
7.BD. | Hasanovite | KNa(MoO2)(SO4)2 |
7.BD. | Evanichite | Pb6Cr3+(Cr6+O4)2(SO4)(OH)7FCl |
7.BD. | Kennygayite | [Pb4O2(OH)2](SO4) |
7.BD.05 | Sulphohalite | Na6(SO4)2FCl |
7.BD.10 | Schairerite | Na21(SO4)7ClF6 |
7.BD.15 | Kogarkoite | Na3(SO4)F |
7.BD.20 | Caracolite | Na3Pb2(SO4)3Cl |
7.BD.20 | Cesanite | Na3Ca2(SO4)3(OH) |
7.BD.20 | Aiolosite | Na4Bi(SO4)3Cl |
7.BD.25 | Burkeite | Na6(CO3)(SO4)2 |
7.BD.30 | Hanksite | Na22K(SO4)9(CO3)2Cl |
7.BD.35 | Cannonite | Bi2(SO4)O(OH)2 |
7.BD.40 | Lanarkite | Pb2(SO4)O |
7.BD.45 | Grandreefite | Pb2(SO4)F2 |
7.BD.50 | Itoite | Pb3Ge4+(SO4)2O2(OH)2 |
7.BD.55 | Chiluite | Bi3Te6+Mo6+O10.5 |
7.BD.60 | Hectorfloresite | Na9(SO4)4(IO3) |
7.BD.65 | Pseudograndreefite | Pb6(SO4)F10 |
7.BD.70 | Sundiusite | Pb10(SO4)O8Cl2 |
Other Information
Thermal Behaviour:
stable up to 600
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 Galeite
mindat.org URL:
https://www.mindat.org/min-1640.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
References for Galeite
Reference List:
IMA (1967) International Mineralogical Association: Commission on New Minerals and Mineral Names. Mineralogical Magazine and Journal of the Mineralogical Society, 36 (277) 131-136 doi:10.1180/minmag.1967.036.277.20
Localities for Galeite
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.
Iceland | |
| Jakobsson et al. (1992) |
JAKOBSSON et al. (1986) +1 other reference | |
Japan | |
| Africano et al. (2000) |
Oskarsson (1981) +1 other reference | |
USA (TL) | |
| Van Nostrand Reinholt Press: 281. +5 other references |
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Searles Lake, San Bernardino County, California, USA