The borate chlorides are chemical compounds that contain both borate ions and chloride ions. They are mixed anion compounds. Many of them are minerals. Those minerals that crystallise with water (hydrates) may be found in evaporite deposits formed when mineral water has dried out.
List
[edit]Chemical formula | Molar mass (g/mol) | Crystal system | Space group | Unit cell (Å) | Volume (Å3) | Density (g/cm3) | Comment | References | |
---|---|---|---|---|---|---|---|---|---|
Teepleite | Na2[B(OH)4]Cl | tetragonal | P4/nmm | a = 7.25, c = 4.84 | 254.4 | 2.076 | Colourless, white or light beige crystals, with a vitreous, greasy, or dull lustre.
Uniaxial (-) nω = 1.519 nε = 1.503 Max birefringence δ = 0.016 |
[1] | |
Boracite | Mg3(B7O13)Cl | orthorhombic | Pca21 | a = 8.577, b = 8.553, c = 12.09 Z=4 | 992.5 | 2.95 | Green, dark green (ferroan), blue, colourless, grey or white crystals with an adamantine, vitreous lustre if transparent.
Biaxial (+) nα = 1.658 - 1.662 nβ = 1.662 - 1.667 nγ = 1.668 - 1.673 2V 82° Max birefringence δ = 0.010 - 0.011 |
[2] | |
Karlite | Mg7(BO3)3(OH,Cl)5 | orthorhombic | a = 17.92, b = 17.6, c = 3.1 | 978 | 2.80 | White to light green crystals with a silky lustre.
Biaxial (-) nα = 1.589 nβ = 1.632 nγ = 1.634 2V 24° Max birefringence δ = 0.045 |
[3] | ||
Shabynite | Mg5(BO3)(OH)5(Cl,OH)2·4H2O | monoclinic | 2.32 | Colourless or white crystals with a silky lustre.
Biaxial (-) nα = 1.543 nβ = 1.571 nγ = 1.577 2V 49° Max birefringence δ = 0.034 |
[4] | ||||
Satimolite | KNa2Mg2Al5[B12O18(OH)12](OH)6Cl4·4H2O | trigonal | R3m | a = 15.1431, c = 14.456 Z=3 | 2.1 | White to colorless crystals with a vitreous or dull lustre.
Biaxial (-) nα = 1.535 nβ = 1.552 nγ = 1.553 2V 26° Max birefringence δ = 0.018 |
[5][6] | ||
Kalborsite | K6Al4BSi6O20(OH)4Cl | Tetragonal | a = 9.85, c = 13.06 | 1,267 | 2.5 | Colorless with a slight rose-brownish tint crystals with a vitreous or pearly lustre.
Uniaxial (+) nω = 1.525 nε = 1.525 ? Max birefringence δ = 0.000 |
[7] | ||
Hilgardite | Ca2B5O9Cl·H2O | triclinic | P1 | a=6.463 b=6.564 c=6.302 α = 61°38', β = 118°46', γ = 105°47' Z=1 | 205.8 | 2.67 to 2.71 | Colorless, light pink crystals with a vitreous lustre. | [8] | |
Solongoite | Ca2(H3B3O7)(OH)Cl | monoclinic | a = 7.93, b = 7.26, c = 12.54 β = 94° | 720 | 2.514 | Colourless crystals with a vitreous lustre.
Biaxial (+) nα = 1.510 nβ = 1.510 nγ = 1.545 Max birefringence δ = 0.035 |
[9] | ||
Ekaterinite | Ca2(B4O7)(Cl,OH)2·2H2O | hexagonal | a = 11.86, c = 23.88 | 2,909 | 2.440 | White or white with slight rose tint crystals with a pearly lustre.
Uniaxial (-) nω = 1.577 nε = 1.574 Max birefringence δ = 0.003 |
[10] | ||
Chelkarite | CaMgB2O4(Cl,OH)2·5H2O or near Cl:OH = 3:1 | orthorhombic | a = 13.69, b = 20.84, c = 8.26 | 2,357 | 2.21 | Colorless crystals.
Biaxial (+) nα = 1.520 nγ = 1.558 Max birefringence δ = 0.038 |
[11] | ||
Sakhaite | Ca48Mg16(BO3)32(CO3)16·2(H2O,HCl) | isometric | Fd3m | a = 14.685 Z=4 | 3166.8 | 2.78 - 2.83 | Colourless, gray to grayish white crystals with a greasy lustre. | [12] | |
Hydrochlorborite | Ca4B8O15Cl2·21H2O | monoclinic | a = 22.78, b = 8.74, c = 17.06 β = 96.7° | 3373 | 1.83 - 1.85 | Colorless crystals with a vitreous, dull lustre.
Biaxial (+) nα = 1.499 nβ = 1.502 nγ = 1.521 2V 45° Max birefringence δ = 0.022 |
[13] | ||
Heidornite | Na2Ca3B5O8(OH)2(SO4)2Cl | monoclinic | C2/c | a = 10.19, b = 7.76, c = 18.81
β = 93.33° Z=4 |
1,485 | 2.753 | Colorless crystals with a vitreous lustre.
Biaxial (+) nα = 1.579 nβ = 1.588 nγ = 1.604 2V 63° to 77° Max birefringence δ = 0.025 |
[14] | |
Volkovskite | KCa4[B5O8OH]4[B(OH)3]2Cl·4H2O | triclinic | P1 | a = 6.57, b = 23.92, c = 6.52
α = 90.58°, β = 119.1°, γ = 95.56° |
889.2 | 2.27 | Colourless or pink; varying from pale to deep orange crystals with a vitreous lustre.
Biaxial (+) nα = 1.523 - 1.539 nβ = 1.539 - 1.540 nγ = 1.596 - 1.605 2V 14.6° Max birefringence δ = 0.073 |
[15] | |
Kurgantaite | CaSr[B5O9]Cl·H2O | triclinic | P1 | a = 6.5732, b = 6.4445, c = 6.3693, α = 60.995°, β = 61.257°, γ = 77.191° Z=1 | 2.99 | Colourless to white crystals with a vitreous lustre. | [16] | ||
Chambersite | (Mn2+)3(B7O13)Cl | orthorhombic | Pca21 | a = 8.68, b = 8.68, c = 12.26 Z=4 | 924 | 3.49 | Colorless to deep purple crystals with a vitreous lustre.
Biaxial (+) nα = 1.732 nβ = 1.737 nγ = 1.744 2V 83° Max birefringence δ = 0.012 |
[17] | |
Ericaite | (Fe2+)3(B7O13)Cl | orthorhombic | a = 8.58, b = 8.65, c = 12.17 | 903 | 3.17 - 3.27 | Red, green, purple, brown or black crystals.
Biaxial (-) nα = 1.731 nβ = 1.755 nγ = 1.755 Max birefringence δ = 0.024 |
[18] | ||
Congolite | (Fe2+,Mg)3[B7O13]Cl | trigonal | R3c | a = 8.62, c = 21.05 | 1355 | 3.58 | Pale red or pink crystals.
Uniaxial (-) nω = 1.755 nε = 1.731 Max birefringence δ = 0.024 |
[19] | |
Trembathite | (Mg,Fe2+)3[B7O13]Cl | trigonal | a = 8.57, c = 20.99 | 1335 | 2.84 - 3.34 | Colourless to pale blue transparent crystals with a vitreous lustre.
Uniaxial (-) nω = 1.684 nε = 1.668 Max birefringence δ = 0.016 |
[20][21] | ||
Bandylite | Cu2+[B(OH)4]Cl | tetragonal | P4/nmm | a = 6.19 Å, c = 5.61 Z=2 | 214.9 | 2.81 | Deep blue crystals with greenish portions; cendre blue to Italian blue, becoming greener with atacamite inclusions, with a vitreous or pearly lustre.
Uniaxial (-) nω = 1.691 - 1.692 nε = 1.640 - 1.641 Max birefringence δ = 0.051 |
[22] | |
Li3B8O13Cl | 350.75 | Otrhorhombic | Pca21 | a=17.229 b=9.3827 c=6.6452 Z=4 | 1074.25 | 2.169 | birefringence 0.094 at 1064 nm | [23] | |
Na4[B6O9(OH)3](H2O)Cl | Otrhorhombic | Pca21 | a=15.4867 b=8.6867 c=8.8551 Z=2 | 1191.3 | 2.260 | SHG 0.4 × KDP | [24] | ||
Mg3B7O13Cl[clarification needed] | 392.05 | orthorhombic | Pca21 | a=8.5319 b=8.5282 c=12.0730 Z=4 | 878.45 | 2.964 | NLO | [25] | |
KZn2BO3Cl2 | trigonal | R32 | NLO SHG 1.3 × KDP | [26] | |||||
Ag4B7O12Cl | 734.6 | triclinic | P1 | a=8.7394 b=8.7881 c=9.1381 α=65.625° β=77.269° γ=61.173° Z=2 | 562 | [27] | |||
RbZn2BO3Cl2 | 345.92 | trigonal | R32 | a=4.965 c=27.21 | NLO SHG 1.17 × KDP | [26] | |||
Sn3B3O7Cl | orthorhombic | Pna21 | a=9.5239 b=7.5804 c=12.3065 Z=4 | 1825 | 4.007 | SHG 0.5 × of KDP | |||
Sn3B10O17Cl2 | orthorhombic | Pbcn | a =19.1905 b=10.3893 c=8.5164 | UV cutoff 280 nm; birefringence 0.125 at 546 nm | [28] | ||||
Ba6BO3Cl9 | 1201.90 | monoclinic | P21/n | a=8.229 b=12.259 c=19.080 β=90.20 Z=4 | 1924.7 | 4.418 | colourless | [29] | |
NaBa4Al2B8O18Cl3 | tetragonal | P42nm | a = 12.048, c = 6.817 | NLO | [30] | ||||
NaBa4(GaB4O9)2Cl3 | 1192.62 | tetragonal | P42nm | a=12.1033 c=6.8329 Z=2 | 1001.0 | 3.957 | SHG 1.5xKDP | [31] | |
Rb4Ba2.5B20O34Cl | 1481.10 | triclinic | P1 | a=6.756 b=11.086 c=11.288 α=99.07° β=90.60° γ=100.38° Z=1 | 820.6 | 2.9965 | colourless | [32] | |
La(BO2)2Cl | triclinic | [33] | |||||||
Cs2La2B10O17Cl4 | 1065.54 | monoclinic | Cm | a=8.6904 b=20.92 c=6.4231 β =104.003 Z=2 | 1126.15 | 3.142 | SHG 2.1xKDP | [34] | |
Ce(BO2)2Cl | triclinic | P1 | a = 4.2174; b = 6.5763; c = 8.1221 α = 82, 152; β = 89, 206; γ = 72.048°; Z = 2 | [33] | |||||
Ce3[BO3]2Cl3 | hexagonal | P63/m | a = 9.2008, c = 5.8079; Z = 2 | [33] | |||||
Pr(BO2)2Cl | triclinic | [33] | |||||||
Sm4[B16O26(OH)4(H2O)3Cl4] | [35] | ||||||||
Eu4[B16O26(OH)4(H2O)3Cl4] | [35] | ||||||||
Gd4[B16O26(OH)4(H2O)3Cl4] | [35] | ||||||||
Pb6BO4Cl7 | 1566 | triclinic | P1 | a=8.001 b=8.054 c=13.116 α=89.52 β=89.66 γ=69.942 | 793.9 | 6.551 | colourless | [29] | |
Pu[B4O6(OH)2Cl] | monoclinic | Cc | a=6.4898 b=11.174 c=9.6183 β=105.15° | [36] | |||||
Pu2[B13O19(OH)5Cl2(H2O)3] | monoclinic | P21/n | a=8.0522 b=14.568 c=9.82 β=90.12° | [36] | |||||
Pu4[B16O26(OH)4(H2O)3Cl4] | [35] | ||||||||
Am[B9O13(OH)4]·H2O | monoclinic | P21/n | a=7.703Å b=16.688Å c=9.872 β=90.073° | [36] | |||||
Am4[B16O26(OH)4(H2O)3Cl4] | [35] | ||||||||
Cm2[B14O20(OH)7(H2O)2Cl] | monoclinic | P21/n | a=7.9561 b=14.212 c=9.836 β=90.013° | [36] | |||||
Cm4[B16O26(OH)4(H2O)3Cl4] | [35] | ||||||||
Cf4[B16O26(OH)4(H2O)3Cl4] | [35] |
References
[edit]- ^ "Teepleite". www.mindat.org. Retrieved 2020-12-14.
- ^ "Boracite". www.mindat.org. Retrieved 2020-12-14.
- ^ "Karlite". www.mindat.org. Retrieved 2020-12-14.
- ^ "Shabynite". www.mindat.org. Retrieved 2020-12-14.
- ^ "Satimolite". www.mindat.org. Retrieved 2020-12-14.
- ^ "Satimolite Mineral Data".
- ^ "Kalborsite". www.mindat.org. Retrieved 2020-12-15.
- ^ Rumanova, I. M.; Iorysh, Z. I.; Belov, N. V. (1977). "Crystal structure of triclinic hilgardite Ca2[B5O9]Cl⋅H2O=Ca2[Bt3BΔ2O9]Cl⋅H2O". Dokl. Akad. Nauk SSSR. 23 (1): 91–94. Retrieved 2020-12-10 – via www.mathnet.ru.
- ^ "Solongoite". www.mindat.org. Retrieved 2020-12-14.
- ^ "Ekaterinite". www.mindat.org. Retrieved 2020-12-14.
- ^ "Chelkarite". www.mindat.org. Retrieved 2020-12-14.
- ^ "Sakhaite". www.mindat.org. Retrieved 2020-12-14.
- ^ "Hydrochlorborite". www.mindat.org. Retrieved 2020-12-14.
- ^ "Heidornite". www.mindat.org. Retrieved 2020-12-15.
- ^ "Volkovskite". www.mindat.org. Retrieved 2020-12-14.
- ^ "Kurgantaite". www.mindat.org. Retrieved 2023-03-23.
- ^ "Chambersite". www.mindat.org. Retrieved 2020-12-14.
- ^ "Ericaite". www.mindat.org. Retrieved 2020-12-14.
- ^ "Congolite". www.mindat.org. Retrieved 2020-12-14.
- ^ "Trembathite". www.mindat.org. Retrieved 2020-12-14.
- ^ "Trembathite Mineral Data".
- ^ "Bandylite". www.mindat.org. Retrieved 2020-12-14.
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