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Fluoride phosphate

From Wikipedia, the free encyclopedia
Class of chemical compounds

Thefluoride phosphates orphosphate fluorides are inorganic double salts that contain bothfluoride andphosphate anions. In mineralogy,Hey's Chemical Index of Minerals groups these as 22.1. TheNickel-Strunz grouping is 8.BN.

Related mixed anion compounds are thechloride phosphates, thefluoride arsenates andfluoride vanadates.

They are distinct from thefluorophosphates:monofluorophosphate,difluorophosphate andhexafluorophosphate which have fluorine bonds to the phosphorus.

Minerals

[edit]
nameformularatio

PO4:F

formula weightcrystal systemspace groupunit cellvolumedensityrefractive indexcommentreference
AlthausiteMg4(PO4)2(OH,O)(F,☐)2:~1OrthorhombicPnmaa = 8.258 b = 6.054, c = 14.383719.062.97Biaxial (+)nα = 1.588nβ = 1.592nγ = 1.598

2V: measured: 70° , calculated: 80°

Max birefringence: δ = 0.010

[1]
AmblygoniteLiAl(PO4)F1:1TriclinicP1a = 6.644 b = 7.744 c = 6.91

α = 90.35°, β = 117.33°, γ = 91.01° Z=4

315.753.04-3.11Biaxial (-)nα = 1.577 - 1.591nβ = 1.592 - 1.605nγ = 1.596 - 1.613

2V: Measured: 107° to 129.5°

Birefringence: 0.020

[2]
aravaiteBa2Ca18(SiO4)6(PO4)3(CO3)F3O3:3trigonalR3ma = 7.1255, c = 66.290 Z=32914.8[3]
ArctiteNa2Ca4(PO4)3F3:1TrigonalR3ma = 7.078 c = 41.203 Z=61,787.643.13Uniaxial (-)nω = 1.578nε = 1.577 Birefringence: 0.001[4]
AriegilatiteBaCa12(SiO4)4(PO4)2F2OTrigonalR3ma = 7.1551 c = 41.3031381.2Uniaxial (-)nω = 1.650nε = 1.647

Max Birefringence: δ = 0.003

[5]
BabefphiteBaBePO4(F,OH)1:~1TetragonalUniaxial (+)nω = 1.629nε = 1.632

Max birefringence: δ = 0.003

[6]
Belovite-(Ce)NaCeSr3(PO4)3F3:1TrigonalP3a = 9.692 c = 7.201585.804.19Uniaxial (-)nω = 1.653 - 1.660nε = 1.634 - 1.640

Birefringence: 0.015

[7]
Belovite-(La)NaLaSr3(PO4)3F3:1TrigonalP3a = 9.647 c = 7.17577.884.19Uniaxial (-)nω = 1.653nε = 1.635 - 1.636

Max birefringence: δ = 0.018

[8]
BøggilditeNa2Sr2Al2PO4F91:9MonoclinicBiaxial (+)nα = 1.462nβ = 1.466nγ = 1.469

2V: 80° Max birefringence:δ = 0.007

[9]
Carlgieseckeite-(Nd)NaNdCa3(PO4)3FTrigonalP3a = 9.4553 c = 6.9825540.623.91[10]
CloncurryiteCu0.5(VO)0.5Al2(PO4)2F2 · 5H2O2:2MonoclinicP21/ba = 4.9573 b = 12.1824 c = 18.9749 β = 90.933° Z=41145.782.525Biaxial (-)nα = 1.548(2)nγ = 1.550(2)

2V: calculated: 56°

Max brefringence: δ = 0.002

[11]
Deloneite(Na0.5REE0.25Ca0.25)(Ca0.75REE0.25)Sr1.5(CaNa0.25REE0.25)(PO4)3F0.5(OH)0.5TrigonalP3a = 9.51 c = 7.01 Z=2549.053.92Uniaxial (-)nω = 1.682nε = 1.660

Max birefringence: δ = 0.022

[12]
FluelliteAl2(PO4)F2(OH) · 7H2OOrthorhombicFddda = 11.22 b = 21.15 c = 8.542,0272.139 - 2.17Biaxial (+)nα = 1.473 - 1.490nβ = 1.490 - 1.496nγ = 1.506 - 1.511

Max birefringence: δ = 0.033

[13]
FluorapatiteCa5(PO4)3F3:1HexagonalP63/ma = 9.3973 c = 6.8782526.033.1-3.25Uniaxial (-)nω = 1.631 - 1.650nε = 1.627 - 1.646

Birefringence: 0.004

[14]
FluorcaphiteSrCaCa3(PO4)3F3:1HexagonalP63/ma = 9.485 c = 7.000 Z=2545.39Uniaxial (-)nω = 1.649nε = 1.637

Max birefringence: δ = 0.012

[15]
FluorphosphohedyphaneCa2Pb3(PO4)3F3:1HexagonalP63/ma = 9.640, c = 7.012 Z=2564.45.445Uniaxial (-)nω = 1.836nε = 1.824

Max birefringence: δ = 0.012

[16]
FluorstrophiteSrCaSr3(PO4)3F3:1HexagonalP63/ma = 9.565 c = 7.115 Z=2563.74Uniaxial (-)nω = 1.651nε = 1.637

Max birefringence: δ = 0.014

[17]
Francolite
HerderiteCaBe(PO4)FMonoclinica = 4.81, b = 7.7 c = 9.82 β = 90.1°363.73.02Biaxial (-)nα = 1.556 - 1.592nβ = 1.578 - 1.610nγ = 1.589 - 1.620

2V: calculated: 70°

Max birefringence: δ = 0.033

[18]
IangreyiteCa2Al7(PO4)2(PO3OH)2(OH,F)15 · 8H2O4:~15TrigonalP3 2 1a = 6.988 c = 16.707706.5[19]
IsokiteCaMg(PO4)FMonoclinicB2/ba = 6.52 b = 8.75 c = 7.51 β = 121.47°365.43.15-3.27Biaxial (+)nα = 1.590nβ = 1.595nγ = 1.615

2V: ,easured: 51°

Max birefringence: δ = 0.025

[20]
KingiteAl3(PO4)2F2(OH) · 7H2O2:2Triclinica = 9.15 b = 10 c = 7.24

α = 98.6°, β = 93.6°, γ = 93.2°

Biaxial[21]
Kuannersuite-(Ce)NaCeBa3(PO4)3F0.5Cl0.56:1TrigonalP3a = 9.909 c = 7.402629.424.51[22]
LacroixiteNaAl(PO4)F1:1MonoclinicB2/ba = 6.414 b = 8.207 c = 6.885 β = 115.47°327.203.126 - 3.29Biaxial (-)nα = 1.546nβ = 1.563nγ = 1.580

2V: measured: 89°

Birefringence: 0.034

[23]
McauslaniteFe3Al2(PO4)3(PO3OH)F · 18H2O4:1Triclinica = 10.05 b = 11.56 c = 6.88

α = 105.84°, β = 93.66°, γ = 106.47°

728.7Biaxial (-)nα = 1.522nβ = 1.531nγ = 1.534

2V: measured: 55° to 59.7°, calculated: 58°

Max birefringence:δ = 0.012

[24]
MinyuliteKAl2(PO4)2(OH,F) · 4H2O2:~1OrthorhombicPba2a = 9.34 b = 9.74 c = 5.525022.47Biaxial (+)nα = 1.531nβ = 1.534nγ = 1.538

2V: measured: 70° , calculated: 82°

Max birefringence: δ = 0.007

[25]
Miyahisaite(Sr,Ca)2Ba3(PO4)3F3:1HexagonalP63/ma = 9.921, c = 7.469 Z=2636.74.511[26]
MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2O2:4Monoclinic2.94Biaxial (-)nα = 1.551nβ = 1.563nγ = 1.565

2V: measured: 43° , calculated: 44°

Max birefringence: δ = 0.014

[27]
NacaphiteNa2Ca(PO4)FMonoclinicP21/ba = 13.318 b = 7.0964 c = 10.6490 β = 113.526° Z=8922.81Biaxial (-)nα = 1.508nβ = 1.515nγ = 1.520

2V: 80° Max birefringence: δ = 0.012

[28]
natrophosphateNa7(PO4)2F.19H2O2:1IsometricFd3ca = 27.79 Z=5621,461.781,71-1.72Isotropic[29][30]
NefedoviteNa5Ca4(PO4)4F4:1Triclinica = 5.4 Å, b = 11.64 Å, c = 16.48 Å

α = 134.99°, β = 90.04°, γ = 89.96°

732.60Biaxial (+)nα = 1.571nγ = 1.590

Max birefringence: δ = 0.019

[31]
Nevadaite(Cu2+,Al,V3+)6Al8(PO4)8F8(OH)2 · 22H2O8:8OrthorhombicP21mna = 12.123 b = 18.999 c = 4.9612.54Biaxial (-)nα = 1.540nβ = 1.548nγ = 1.553

2V: measured: 76°, calculated: 76°

Max birefringence: δ = 0.013

[32]
PanasqueiraiteCaMg(PO4)(OH,F)1:~1monoclinica = 6.53 b = 8.75 c = 6.91 β = 112.33°365.23.27Biaxial (+)nα = 1.590nβ = 1.596nγ = 1.616

2V: measured: 51° , calculated: 58°

Max birefringence: δ = 0.026

[33]
RichelliteCaFe3+2(PO4)2(OH,F)22:~2a = 5.18 c = 12.61[34]
StronadelphiteSr5(PO4)3F3:1HexagonalP63/ma = 9.845 c = 7.383619.72Uniaxial (-)nω = 1.630(1)nε = 1.623(1)

Max birefringence: δ = 0.007

[35]
TripliteMn2+2(PO4)F1:1MonoclinicP21/ba = 11.9 b = 6.52 c = 10.09 β = 105.62°758.43.9Biaxial (+)nα = 1.650nβ = 1.660nγ = 1.680

2V: measured: 70° to 90°, calculated: 72°

Max birefringence: δ = 0.030

[36]
VäyryneniteMn2+Be(PO4)(OH,F)1:~1MonoclinicP21/ba = 5.411 b = 14.49 c = 4.73 β = 102.75°361.713.22Biaxial (-)nα = 1.638 - 1.640nβ = 1.658 - 1.662nγ = 1.664 - 1.667

2V: measured: 46° to 55°, Calculated: 51° to 57°

Max birefringence: δ = 0.026 - 0.027

[37]
ViitaniemiiteNa(Ca,Mn2+)Al(PO4)(F,OH)31:~3Monoclinica = 6.83 b = 7.14 c = 5.44 β = 109.37°250.27Biaxial (-)nα = 1.557nβ = 1.565nγ = 1.571

2V: measured: 81° , calculated: 80°

Max birefringence: δ = 0.014

[38]
Wagnerite(Mg,Fe2+)2(PO4)F1:1MonoclinicP21/ba = 9.645 b = 31.659 c = 11.914 β = 108.26(3)°3454.83.15Biaxial (+)nα = 1.568nβ = 1.572nγ = 1.582

2V: Measured: 25° to 35°

? Birefringence:0.046

Max birefringence: δ = 0.015

[39]
WavelliteAl3(PO4)2(OH,F)3 · 5H2O2:~3Orthorhombica = 9.621 b = 17.363 c = 6.9941168.32.36Biaxial (+)nα = 1.518 - 1.535nβ = 1.524 - 1.543nγ = 1.544 - 1.561

2V: measured: 60° to 72°, calculated: 60° to 70°

Max birefringence: δ = 0.026

[40]
ZwieseliteFe2+2(PO4)F1:1MonoclinicP21/b753.82Biaxial (+)nα = 1.686 - 1.696nβ = 1.690 - 1.704nγ = 1.703 - 1.713

2V: measured: 58° , calculated: 60°

Max birefringence: δ = 0.017

[41]
Na5-4.5PO4(CO3,F,Cl)1:~1[29]

Artificial

[edit]
nameformulaformula weightcrystal systemspace groupunit cell Åvolumedensityrefractive indexcommentreference
EMM-9; 4-(dimethylamino)pyridine fluoroaluminophosphate(DMAP)2Al4P4O17F2•H2OmonoclinicP21/aa=14.335 b=13.561 c=14.497 β =101.094°layered[42]
KBPO4FmonoclinicCc[43]
Iron-Doped Sodium–Vanadium FluorophosphateNa3V2–yO2–yFey(PO4)2F1+y (y < 0.3)tetrahedralP42/mnma=9.0277 c=10.6259866.0[44]
Na3V2O1.6(PO4)2F1.4[44]
Na3V2(PO4)2F3[45]
Na2MnPO4F[46]
αNa2FePO4FmonoclinicP21/ca = 13.675,b = 5.2503,c = 13.7202, β = 120.230°[46]
βNa2FePO4Forthorhombic[46]
RbBPO4F210.25cubicP213a=7.5901 Z=4437.263.194colourless[43]
MIL-145RbGa3(PO4)2(HPO4)F4·C5N2H16·2H2O3187.11monoclinicP2a=14.4314 b=9.1152 c=16.7889 β = 112.708 Z=12037.302.598colourless[47]
K2SnPO4F3348.86monoclinicP21/ca=10.039 b=9.415 c=21.602 beta=95.464 Z=122032.63.420colourless[48]
K6Sn(P2O7)2F2739.17monoclinicP21/ca=8.515 b=12.400 c=8.403 beta=99.58 Z=29874.82.806colourless[48]
K2Sb(P2O7)FtetragonalP4bma=8.5239 c=5.572 Z=2404.83.223colourless SHG 4.0×KDP[49]
CsBPO4FcubicP213a=7.7090 Z=4458.143.736colourless[43]
Na2PrF2(PO4)cubic[50]
Na2NdF2(PO4)cubic[50]
Na2SmF2(PO4)cubic[50]
Na2EuF2(PO4)cubic[50]
Na2TbF2(PO4)cubic[50]
Na2PrF2(PO4)cubic[50]
Sr4Gd3Na3(PO4)6F2[51]
PbZn(PO4)F386.53orthorhombicPna21a=8.985 b=9.381 c=4.8212 Z=4406.46.318colourless[52]

References

[edit]
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