Sulfate fluoride

The sulfate fluorides are double salts that contain both sulfate and fluoride anions. They are in the class of mixed anion compounds. Some of these minerals are deposited in fumaroles.

Fluoride sulfates were first discovered by Jean Charles de Marignac in 1859.^[1][2]

Some elements such as cobalt or uranium can form complexes that contain fluoride and sulfate groups, and would be referred to as fluoro and sulfato metallates.

List

Minerals

name	formula	ratio	system	space group	unit cell Å	volume	density	optical	references
Chukhrovite-(Ca)	Ca4.5Al2(SO4)F13·12H2O	1:13	Isometric	Fd3	a = 16.749 Z=8	4698.6	2.23	isotropic n = 1.432	[3]
Chukhrovite-(Ce)	Ca3(Y,Ce)(AlF6)2(SO4)F · 10H2O	1:13	Isometric	Fd3					[4]
Chukhrovite-(Y)	Ca3(Ce,Y)(AlF6)2(SO4)F · 10H2O	1:13	Isometric	Fd3					[5]
Chukhrovite-(Nd)	Ca3(Nd,Y)Al2(SO4)F13·12H2O	1:13	Isometric	Fd3	a = 16.759 Z=8	4,707.0	2.42	isotropic nα = 1.443	[6]
Meniaylovite	Ca4[(SO4)(SiF6)(AlF6)]F · 12H2O	1:13	Isometric	Fd3	a = 16.722 Z=8	4,675.89		Isotropic n = 1.43
Pseudograndreefite	Pb6(SO4)F10	1:10	Orthorhombic	F2 2 2	a = 8.51 b = 19.57 c = 8.49 Z=4	1,413.93		Biaxial (+) nα = 1.864 nβ = 1.865 nγ = 1.873 2V: measured: 30° , calculated: 40° Max birefringence: δ = 0.009	[7]
Creedite	Ca3SO4Al2F8(OH)2 · 2H2O	1:8	Monoclinic	B2/b	a = 13.936, b = 8.606, c = 9.985 β = 94.39° Z=4	1,194.02	2.713	Biaxial (-) nα = 1.461 nβ = 1.478 nγ = 1.485 Max birefringence: δ = 0.024	[8]
Thermessaite	K2AlF3(SO4)	1:3	Orthorhombic	Pbcn	a = 10.81 b = 8.336 c = 6.822	614.75	2.77
Grandreefite	Pb2(SO4)F2	1:2	monoclinic	A2/a	a = 8.667 b = 4.4419 c = 14.242 β = 107.418 Z=4	523.15	7.15	Biaxial (+) nα = 1.872 nβ = 1.873 nγ = 1.897 2V: Measured: 23° Max Birefringence: δ = 0.025	[9]
Arangasite	Al2F(PO4)(SO4) · 9H2O	1:1	monoclinic	P2/a	a = 7.073 b = 9.634 c = 10.827 β = 100.40 Z = 2	725.7	2.01	Biaxial (+) ?nα = 1.493(5) nγ = 1.485(5) Max birefringence: δ = 0.008	[10][11]
Khademite	Al(SO4)F · 5H2O	1:1	orthorhombic		a = 11.17 b = 13.05 c = 10.88	1,585.96	1.925	Biaxial (-) nα = 1.440 nβ = 1.460 nγ = 1.487 2V: measured: 68° calculated: 84° Max birefringence δ = 0.047 colourless	[12]
Kogarkoite	Na3(SO4)F	1:1	Monoclinic	?P21	a = 18.07 b = 6.94 c = 11.44 β = 107.72° Z=12	1,366.58	2.676	Biaxial (+) nα = 1.439 nβ = 1.439 nγ = 1.442 Max Birefringence: δ = 0.003	[13]
kononovite	NaMg(SO4)F	1:1	monoclinic	C2/c	a = 6.662 b = 8.584 c = 7.035 β = 114.06 Z=4	367.4	2.91	biaxial (+), nα = 1.488 nβ = 1.491 nγ = 1.496 2Vmeas = 75° Max birefringence: δ = 0.008	[14]
Lannonite	Mg2Ca4Al4(SO4)8F8 · 24H2O	8:8	Tetragonal	I4/m	a = 6.860 c = 28.053	1,320.16	2.22	Uniaxial (+) nω = 1.460 nε = 1.478 Max Birefringence:δ = 0.018	[15]
Sulphohalite	Na6(SO4)2FCl	2:1	Isometric	Fm3m				Isotropic	[16]
Uklonskovite	NaMgSO4F•2H2O	1:1	monoclinic		a = 7.2 Å, b = 7.21 Å, c = 5.73 β = 113.23°	273.34		Biaxial (+) nα = 1.476 nγ = 1.500 Max Birefringence δ = 0.024	[17]
Vlodavetsite	AlCa2(SO4)2F2Cl · 4H2O	2:2	Tetragonal	I4/m	a = 6.870, c = 13.342 Z=2	629.70		Uniaxial (+) nω = 1.509 nε = 1.526 Max birefringence: δ = 0.017	[18]
Schairerite	Na21(SO4)7ClF6	7:6	trigonal	3_2/m	a = 12.17 c = 19.29	2,474.25	2.67	Uniaxial (+) nω = 1.440 nε = 1.445 Max birefringence: δ = 0.005	[19]
Galeite	Na15(SO4)5F4Cl	5:4	Trigonal		a = 12.17 c = 13.94	1,788.03		Uniaxial (+) nω = 1.447 nε = 1.449 Max Birefringence: δ = 0.002	[20]
Fluorellestadite	Ca10(SiO4)3(SO4)3F2	3:2	hexagonal		a = 9.53 c = 6.91	543.49	3.03	Uniaxial (-) nω = 1.655 nε = 1.650 Max birefringence:δ = 0.005	[21]
Straßmannite	Al(UO2)(SO4)2F·16H2O	2:1	monoclinic	C2/c	a = 11.0187 b = 8.3284 c = 26.673 β = 97.426°	2427.2	2.20	pale yellowish green Biaxial (-) nα = 1.477(2) nβ = 1.485(2) nγ = 1.489(2) 2V: measured: 70° calculated: 70.2° Max birefringence: δ = 0.012	[22]
Svyazhinite	(Mg,Mn2+,Ca)(Al,Fe3+)(SO4)2F · 14H2O	2:1	triclinic		a = 6.21 b = 13.3 c = 6.25 α = 90.15°, β = 93.56°, γ = 82.08°	510.29		Biaxial (-) nα = 1.423 nβ = 1.439 nγ = 1.444 2V: calculated: 56° Max birefringence: δ = 0.021	[23]
Wilcoxite	MgAl(SO4)2F · 17H2O	2:1	triclinic	P1	a = 6.644, b = 6.749, c = 14.892 α = 79.664°, β = 80.113°, γ = 62.487	579.6	1.58	Biaxial (-) nα = 1.424 nβ = 1.436 nγ = 1.438 2V: measured: 48° , calculated: 44° Max birefringence: δ = 0.014	[24]
Krasheninnikovite	KNa2CaMg(SO4)3F	3:1	hexagonal	P63/mcm	a = 16.6682 c = 6.9007 Z = 6	1660.36	2.68	Uniaxial (-) nω = 1.500 nε = 1.492 Max birefringence: δ = 0.008	[25]
Shuvalovite	K2(Ca2Na)(SO4)3F	3:1	orthorhombic	Pnma	a = 13.2383 b = 10.3023 c = 8.9909 Z = 4	1226.22	2.64	biaxial (−), nα = 1.493 nβ = 1.498 nγ = 1.498 2Vmeasured ≤ 20	[26]
Thermessaite-(NH4)	(NH4)2AlSO4F3	1:3	orthorhombic	Pbcn	a = 11.3005 b = 8.6125 c = 6.8501 Z = 4	666.69			[27]

Artificial

name	formula	MW	ratio	system	space group	unit cell	volume	density	optical	CAS	references
	LiMgFSO4		1:1	triclinic	P1	a = 5.1623 b = 5.388 c = 7.073 α = 106.68 β=107.40 and γ=97.50° Z=2					[28]
	NaMgSO4F		1:1	monoclinic	C2/c	Z=4	109.802	2.84			[29]
	Na2AlSO4F3		1:1	monoclinic	P2/c	a=6.3562 b=6.2899 c=7.1146 β=115.687° Z=2	256.33	2.928			[30]
	Li4NH4Al(SO4)2F4		2:4	monoclinic	C2/c	a=13.6561 b=4.9761 c=13.9919 β=92.135° Z=4	950.2	2.383			[30]
	Na4TiF4(SO4)2		2:4								[31]
	β-K3[SO4]F		1:1	tetragonal	I4/mcm	a= 7.2961 c= 10.854					[32]
	α-K3[SO4]F		1:1	cubic	Pm3m	a≈5.43 ≥585 °C					[32]
	KMgSO4F	178.47	1:1	orthorhombic	Pna21	a=12.973 b=6.4585 c=10.635 Z=8	891.1	2.661	colourless		[33][34]
	Li6K3Al(SO4)4F4		4:4	triclinic	P1	a=5.0304 b=9.5690 c=9.7078 α=70.968° β=75.531° γ=75.183° Z=1	420.08	2.554			[30]
sodium calcium sulfapatite	Na6Ca4(SO4)6F2		6:2
	K3Ca2(SO4)3F		3:1	orthorhombic	Pn21a	a=13.467 b=10.521 c=9.167 Z=4	1299.9				[35]
	[N2C10H12] TiF4SO4	378.16?	1:4	triclinic	P1	a=8.691 b=9.208 c=9.288 α=68.56 β=84.30 γ=81.59 Z=2	683.6	1.837	colourless		[31]
	[N2C10H12]TiF2(SO4)2	436.22?	2:2	triclinic	P1	a=4.5768 b=8.9162 c=10.1236 α=112.888 β=95.196 γ=98.706 Z=1	371.11	1.952	colourless		[31]
	Rb2TiF2(SO4)2 · 2H2O		1:1								[36]
	Cs2TiF2(SO4)2 · 3H2O		1:1								[36]
	[N2C6H16]V(SO4)2F	378.27	2:1	monoclinic	P21/c	a=10.262 b =17.761 c=7.0518 β=93.93 Z=4	1282.3	1.959	green		[31]
	Na2VF3SO4		1:3								[31]
	Na3CrF2(SO4)2		2:2								[31]
	LiMnSO4F		1:1	monoclinic		a=13.2406 b=6.4082 c=10.0229 β=120.499	732.76				[37]
	[N2C6H16]2+Mn2F2(SO4)2		2:2								[31]
	Li2MnF3(SO4)		1:3						pink-brown		[38]
	(NH4)2MnF3(SO4)		1:3						pink-brown		[38]
	Na2MnF3(SO4)		1:3						pink-brown		[38]
Dipotassium trifluorosulfato manganate(III)	K2MnF3(SO4)		1:3						pink-brown		[38]
	FeFSO4	170.91	1:1	monoclinic	C2/c	a = 7.3037 b = 7.0753 c = 7.3117 β = 119.758°	328.017	3.461			[39]
	K2FeF3SO4		1:3								[31]
	Li3FeF2(SO4)2·H2O		2:2								[31]
	[N2C6H16]Fe(SO4)2F	383.18	2:1	monoclinic	P21/c	a=10.2220 b=17.6599 c=7.0437 β=93.894 Z=4	1268.59	2.006	brown		[31]
	LiFeFSO4	177.85	1:1	triclinic	P1	a = 5.1751 b = 5.4915 c = 7.2211 α = 106.506° β = 107.178° γ=97.865°	182.44	3.237	grass green		[39]
sodium ferrous sulfate fluoride	NaFeFSO4	193.91	1:1	monoclinic	P21/c	a = 6.6739 b = 8.6989 c = 7.1869 β = 113.525°	382.567	3.366			[39]
sodium ferrous sulfate fluoride dihydrate	NaFeFSO4·2H2O		1:1	monoclinic	P21/m	a=5.75959 b=7.38273 c=7.25047 β=113.3225	283.109		white		[40]
trisodium ferric disulfate difluoride	Na3Fe(SO4)2F2		2:2	orthorhombic	Pnca	a = 6.6419 b = 8.8115 c = 14.0023					[41]
	NaCoFSO4		1:1	monoclinic	C2/c	a=6.6687 b=8.6251 c=7.1444 β=114.323	374.46				[42]
	NaCoFSO4·2H2O		1:1	monoclinic	P21/m	a=5.73364 b=7.31498 c=7.18640 β=113.5028	276.40		pink		[40]
	NH4CoFSO4·2H2O		1:1								[43]
	KCoFSO4·2H2O		1:1								[43]
	NaNiFSO4·2H2O		1:1	monoclinic	P21/m	a=5.70118 b=7.27603 c=7.15634 β=113.8883	271.429		green		[40]
	LiZnSO4F		1:1	orthorhombic	Pnma	7.40357 b=6.32995 c=7.42016	347.740				[44]
	KZnSO4F	219.53	1:1	orthorhombic	Pna21	a=13.0602 b=6.4913 c=10.7106 Z=8	908.02	3.212	transparent <190 nm		[34]
	K2Zn3(SO4)(HSO4)2F4		1:4	orthorhombic	Cmc21	a=17.725 b=7.6650 c=9.7505 Z=4	1324.7	3.212	colourless		[45]
	Li4RbAl(SO4)2F4		2:4	monoclinic	C2/c	a=13.6503 b=4.984 c=14.0081 β=91.509° Z=4	948.82	2.858			[46]
	Y(SO4)F	203.97	1:1	orthorhombic	Pnma	a=8.3128, b=6.9255, c=6.3905 Z=4	367.90	3.682			[47]
	YSO4F·H2O		1:1	monoclinic	P21/n	a=4.9707 b=7.306 c=11.493 β =96.95°			birefringence 0.0357 at 546 nm		[48]
	Y2Cu(OH)3(SO4)2F·H2O	521.52	2:1	monoclinic	P21/n	a=11.6889, b=6.8660, c=12.5280, β=97.092° Z=4	997.8	3.472	blue		[47]
	KYSO4F2		1:2	monoclinic	P21/m	a=6.4402 b=5.7784 c=6.992 β=113.684° Z=2	238.30	3.652	band gap 7.79 eV; birefringence 0.015 @ 546.1 nm		[49]
	RbYSO4F2		1:2	monoclinic	P21/m	a=6.5347 b=5.8212 c=7.1383 β=114.332° Z=2	247.42	4.140	band gap 7.82 eV; birefringence 0.02 @ 546.1 nm		[49]
	Zr2O2F2SO4 · 6H2O		1:2								[50]
	α-K3ZrF5SO4 · H2O		1:5								[36]
	K2ZrF4SO4		1:4								[36]
	K2ZrF2(SO4)2 · 2.5H2O		2:2								[36]
	K3Zr2F9SO4 · 2H2O		1:9								[36]
	(NH4)3Zr2F9SO4 · 2H2O		1:9								[36]
	(NH4)2ZrF4SO4		1:4								[36]
	(NH4)2ZrF2(SO4)2 · 2.5H2O		2:2								[36]
	Rb2ZrF4SO4		1:4								[36]
	Rb2ZrF2(SO4)2 · 3H2O		2:2								[36]
	Rb3Zr2F9SO4 ·2H2O		1:9								[36]
	RbZr2O2F(SO4)2 · 5H2O		2:1								[36]
	Cs2ZrF4SO4		1:4								[36]
	Cs2ZrF2(SO4)2 · 2H2O		2:2								[36]
	Cs8Zr4F2(SO4)11 · 16H2O		11:2								[36]
	CsZr2O2F(SO4)2 · 6H2O		2:1								[36]
	Zr2O2F2SO4 · 5H2O		1:2								[36]
triindium trifluoride sulfate ditellurite hydrate	In3(SO4)(TeO3)2F3(H2O)	866.74	1:3	orthorhombic	P212121	a=8.3115 b=9.4341 c=14.8068	1161.0	4.959	band gap 4.10 eV; white		[51]
4,4'-bipyridine distannous difluoride disulfate	(C10H10N2)0.5[SnF(SO4)]		2:2	triclinic	P1	a=4.726 b=7.935 c=11.203 α = 81.05° β = 87.59° γ=73.70° Z=2	398.3	2.608	colourless		[52]
diantimony dipotassium hexafluoride sulfate	K2SO4·(SbF3)2	531.76	1:6	monoclinic	P21/c	a=9.1962 b=5.6523 c=19.2354 β =103.209 Z=4	973.40	3.629	colourless		[53]
diantimony dirubidium hexafluoride sulfate	Rb2SO4·(SbF3)2	624.50	1:6	monoclinic	P21	a=9.405 b=5.7210 c=9.879 β = 103.850 Z=2	516.1	4.018	colourless		[53]
tetraantimony hexarubidium dodecafluoride trisulfate	Rb6Sb4F12(SO4)3	1515.989	3:12	trigonal	P3	a=16.9490 c=7.5405 Z=2	1875.94	4.026	white	53168-89-1	[54][55]
hexaammonium dodecafluorotrisulfatotetraantimonate(III)	[NH4]6Sb4F12(SO4)3		3:12	trigonal	P3	a=17.07 c=7.515 Z=3	1896	2.92			[56]
hexarubidium dodecafluorotrisulfatotetraantimonate(III)	Rb6Sb4F12(SO4)3		3:12								[56]
	Li4CsAl(SO4)2F4		2:4	monoclinic	C2/c	a=13.574 b=5.0427 c=14.258 β=91.961° Z=4	975.7	3.103			[46]
tetraantimony hexacaesium dodecafluoride trisulfate	Cs6Sb4F12(SO4)3	1800.601	3:12	triclinic	P1	a=7.9044 b=10.5139 c=17.3534 al=90.350 β = 90.151 ga=104.797 Z=4	1394.3	4.289	white	53200-54-7	[54][57]
antimony caesium difluoride sulfate	CsSbF2SO4	388.72	1:2	orthorhombic	Pna21	a=9.9759 b=11.6616 c=5.2968	515.20	4.19	clear, non-linear SH		[58]
	LiLa2F3(SO4)2		2:3	monoclinic	I2/a	a = 8.283, b = 6.947, c = 14.209 β = 95.30° Z=4					[59]
	CeF2(SO4)		1:2	orthorhombic	Pca21	a=8.3668 b=6.3600 c=8.3862			birefringence 0.361@ 546 nm; SHG 8×KDP		[60]
	NdFSO4·H2O	277.32	1:1	monoclinic	P21/n	a = 4.9948 b = 7.3684 c = 11.6366 β = 96.672° Z=4	425.37	4.330	pink		[61]
	NaPr2F3(SO4)2		2:3	monoclinic	I2/a	a = 8.223, b = 6.9212, c = 14.199, β = 95.88° Z=4			light green		[62]
	LiEr2F3(SO4)2		2:3	orthorhombic	Pbcn	a = 14.791, b = 6.336, c = 8.137					[59]
hexa(triethylenetriammonium) tetrasamarium tetradecasulfate difluoride	[C4H16N3]6[Sm4F2(SO4)14]	2621.43	14:2	triclinic	P1	a = 11.1988 b = 11.4073 c = 16.2666 α = 89.901°, β = 82.406°, γ = 67.757° Z=1	1903.9	2.286	colourless		[61]
	TbFSO4·H2O	292.00	1:1	monoclinic	P21/n	a = 5.0014 b = 7.377 c = 11.651 β = 96.692° Z=4	426.9	4.543	colourless		[61]
gadolinium fluoride sulfate	GdF[SO4]		1:1	orthorhombic	Pnma	a=8.436 b=7.0176 c=6.4338 Z=4					[63]
	γ-K2HfF2(SO4)2 · 2H2O		2:2								[36]
	K2HfF2(SO4)2 · 2.5H2O		2:2								[36]
	Na6Pb4(SO4)6F2		6:2								[64]
	ThSO4F2.H2O		1:2	monoclinic	P21n	a = 6.9065 b = 6.9256 c = 10.589 β = 96.755° Z = 4	502.98		colourless		[65]
potassium catena-di—fluoro-difluorotetraoxo-di—sulphato-diuranate(VI) hydrate	K2UF2O2(SO4)·H2O		1:2	monoclinic	P21/c	a = 9.263 b = 8.672 c = 11.019 β= 101.60° Z = 4	867.1	3.83	greenish yellow		[66][67]
	(NH4)2[UO2F2(SO4)]			triclinic	P1	a=9.73 b=10.28 c=11.37 α = 107.4°, β = 111.9°, γ =106.9 Z=2			greenish yellow		[67]
	(NH4)6[(UO2)2F4(SO4)3]			triclinic	P1	a=9.35 b=9.85 c=11.25 α = 109.2°, β = 113.1°, γ =102.5 Z=1			greenish yellow		[67]
	Cs2[(UO2)2F4(SO4)]								greenish yellow		[67]
	(NH4)[UO2F(SO4)]			triclinic	P1	a=8.99 b=7.12 c=7.42 α = 114.5°, β = 117.4°, γ =103.2 Z=1		1.92	greenish yellow		[67]
	RbUO2SO4F			orthorhombic	Pca21	a=25.353 b=6.735 c=11.496 Z=12					[68][69]
	[N2C6H16][UO2F2(SO4)]	520.29	1:2	triclinic	P1	a=6.9105 b=9.6605 =10.1033 α=72.6594(14) β=87.068 γ=77.9568 Z=2	629.62	2.744	yellow		[70]
	[N2C6H16][UO2F(SO4)]2	884.37	2:2	orthorhombic	Pmmn	a=6.9503 b=17.2147 c=7.0867 Z=2	847.90	3.464	yellow		[70]
	[N2C3H12][UO2F(SO4)]2·H2O	862.32	2:2	orthorhombic	Pnma	a=13.5775 b=14.6180 c=8.1168 Z=4	1610.99	3.555	yellow		[70]
	[N2C5H14][UO2F(H2O)(SO4)]2	907.38	2:2	monoclinic	P121/n1	a=8.4354 b=15.5581 c=14.8442 β =96.666 Z=4	1935.0	3.115	yellow		[70]
	[N2C6H18]2[UO2F(SO4)]4·H2O	1792.80	4:4	triclinic	P1	a=10.8832 b=10.9386 c=16.5325 α=75.6604 β=73.6101 γ=89.7726 Z=2	1824.73	3.263	yellow		[70]
	[N2C3H12][UO2F(SO4)]2·H2O	864.34	2:2	monoclinic	P121/n1	a=6.7745 b=8.1589 c=14.3661 β =94.556 Z=2	791.54	3.626	yellow		[70]
diammonium hydrazinium triuranium(IV) tetrafluoride hexasulfate	U4+3F4(SO4)6·2NH4·H3N-NH3	1436.6	6:4	monoclinic	C2/c	a=15.2309 b=8.77998 c=18.8590 β=105.5030 Z=4	2432.69	4.392	green		[71]