sulfate carbonate
{{short description|Class of chemical compounds}}
The sulfate carbonates are a compound carbonates, or mixed anion compounds that contain sulfate and carbonate ions. Sulfate carbonate minerals are in the 7.DG and 5.BF Nickel-Strunz groupings.{{cite web |title=Susannite: Mineral information, data and localities. |url=https://www.mindat.org/min-3833.html |website=www.mindat.org |access-date=10 May 2020}}
They may be formed by crystallization from a water solution, or by melting a carbonate and sulfate together.
In some structures carbonate and sulfate can substitute for each other. For example a range from 1.4 to 2.2 Na2SO4•Na2CO3 is stable as a solid solution.{{cite journal |last1=Green |first1=Stanley J. |last2=Frattali |first2=Francis J. |title=The System Sodium Carbonate-Sodium Sulfate-Sodium Hydroxide-Water at 100° |journal=Journal of the American Chemical Society |date=September 1946 |volume=68 |issue=9 |pages=1789–1794 |doi=10.1021/ja01213a033}} Silvialite can substitute about half its sulfate with carbonate{{Cite journal|last1=Teertstra|first1=D. K.|last2=Schindler|first2=M.|last3=Sherriff|first3=B. L.|last4=Hawthorne|first4=F. C.|date=June 1999|title=Silvialite, a new sulfate-dominant member of the scapolite group with an Al-Si composition near the 14/ m – P 4 2 / n phase transition|url=https://www.cambridge.org/core/product/identifier/S0026461X00009142/type/journal_article|journal=Mineralogical Magazine|language=en|volume=63|issue=3|pages=321–329|doi=10.1180/002646199548547|bibcode=1999MinM...63..321T|s2cid=129588463|issn=0026-461X|url-access=subscription}} and the high temperature hexagonal form of sodium sulfate (I) Na2SO4 can substitute unlimited proportions of carbonate instead of sulfate.{{Cite journal|last1=Eysel|first1=W.|last2=Höfer|first2=H. H.|last3=Keester|first3=K. L.|last4=Hahn|first4=Th.|date=1985-02-01|title=Crystal chemistry and structure of Na 2 SO 4 (I) and its solid solutions|url=http://scripts.iucr.org/cgi-bin/paper?S0108768185001501|journal=Acta Crystallographica Section B: Structural Science|volume=41|issue=1|pages=5–11|doi=10.1107/S0108768185001501|bibcode=1985AcCrB..41....5E |issn=0108-7681|url-access=subscription}}
Minerals
class="wikitable"
!name !formula !system !space group !unit cell !volume Å3 !density !optical !ref |
Brianyoungite
|Zn12(CO3)3(SO4)(OH)16 |Monoclinic |P21/m |a = 15.724 b = 6.256 c = 5.427 β = 90° |533.8 |4.09 |Biaxial nα = 1.635 nβ = 1.650 |
Burkeite
|Na6(CO3)(SO4)2 |orthorhombic | |a = 7.05 b = 9.21 c = 5.16 |335.04 |2.57 |Biaxial (-) nα = 1.448 nβ = 1.489 nγ = 1.493 2V: measured: 34° , calculated: 32° Max birefringence: δ = 0.045 |
Caledonite
|Pb5Cu2(SO4)3(CO3)(OH)6 |Orthorhombic |Pmn21 |a = 20.089 b = 7.146 c = 6.56 |941.7 |5.77 |Biaxial (-) nα = 1.818(3) nβ = 1.866(3) nγ = 1.909(3) 2V: measured: 85° , calculated: 84° Max birefringence: δ = 0.091 bluish green |
Carraraite
|Ca3(SO4)[Ge(OH)6](CO3) · 12H2O |hexagonal |P63/m? |a = 11.056 c = 10.629 |1125.17 | |Uniaxial (+) nω = 1.479(1) nε = 1.509(1) Max birefringence: δ = 0.030 |
Carbonatecyanotrichite
|Cu4Al2(CO3,SO4)(OH)12 · 2H2O |Orthorhombic | | | | |Biaxial (+) nα = 1.616 nβ = 1.630 nγ = 1.677 2V: measured: 55° to 60°, calculated: 60° Max birefringence: δ = 0.061 pale blue |
Claraite
|(Cu,Zn)15(AsO4)2(CO3)4(SO4)(OH)14·7H2O |triclinic |P{{overbar|1}} |a = 10.3343 b = 12.8212 c = 14.7889 α = 113.196°, β = 90.811°, γ = 89.818° |1800.9 | | |
Ferrotychite
|Isometric |Fd3 |a = 13.962 |2,721.7 |2.79 |Isotropic n = 1.550 |
Hanksite
|Na22K(SO4)9(CO3)2Cl |hexagonal |P 63/m |a = 10.4896 c = 21.2415 |2024.1 |2.562 |Uniaxial (-) nω = 1.481 nε = 1.461 Max birefringence: δ = 0.020 |
Hauckite
|Fe3+3(Mg,Mn2+)24Zn18(SO4)4(CO3)2(OH)81 |hexagonal |P6/mmm |a = 9.17 c = 30.21 |2200 |3.02 |Uniaxial (+) nω = 1.630 nε = 1.638 Max birefringence: δ = 0.008 |
Jouravskite
|Ca3Mn4+(SO4)(CO3)(OH)6 · 12H2O |Hexagonal |P63 |a = 11.0713 c = 10.6265 Z=3 |1128.02 | |Uniaxial (-) nω = 1.556 nε = 1.540 Max birefringence: δ = 0.016 |
Korkinoite
|Ca4(SO4)2(CO3)2 · 9H2O |Orthorhombic |Pmmm | | | |Biaxial (+) |
Latiumite
|(Ca,K)4(Si,Al)5O11(SO4,CO3) |Monoclinic | |a = 12.06 Å, b = 5.08 Å, c = 10.81 Å β = 106° |636.6 | |Biaxial (+/-) nα = 1.600 - 1.603 nβ = 1.606 - 1.609 nγ = 1.614 - 1.615 2V: measured: 83° to 90°, calculated: 84° to 88° Max Birefringence: δ = 0.014 |
Leadhillite
|Pb4(SO4)(CO3)2(OH)2 |Monoclinic |P21/b |a = 9.11 b = 20.82 c = 11.59 β = 90.46° |2198 |6.55 |Biaxial (-) nα = 1.870 nβ = 2.009 nγ = 2.010 2V: 10° Max birefringence: δ = 0.140 |{{Cite web|title=Leadhillite: Mineral information, data and localities.|url=https://www.mindat.org/min-2361.html|access-date=2020-06-09|website=www.mindat.org}} |
Macphersonite
|Orthorhombic | |a = 10.38 b = 23.05 c = 9.242 |2211.8 | |Biaxial (-) nα = 1.870 nβ = 2.000 nγ = 2.010 2V: measured: 35° calculated: 28° Max birefringence: δ = 0.140 |
Manganotychite
|Isometric |Fd3 |a = 13.9951 |2,741.12 |2.7 |n = 1.544 pink |
Mineevite-Y
|Na25BaY2(SO4)11(HCO3)4(CO3)2F2Cl{{cite book |last1=Jones |first1=G. C. |last2=Jackson |first2=B. |title=Infrared Transmission Spectra of Carbonate Minerals |date=2012 |publisher=Springer Science & Business Media |isbn=978-94-011-2120-0 |page=18 |url=https://books.google.com/books?id=SCUrBgAAQBAJ&pg=PT18 |language=en}} |Hexagonal |P63/m |a = 8.811 c = 37.03 Z=2 |2489.6 | |Uniaxial (-) nω = 1.536 nε = 1.510 Max birefringence: δ = 0.026 pale green |
Nakauriite
|Cu8(SO4)4(CO3)(OH)6•48H2O |orthorhombic | |a = 14.58 b = 11.47 c = 16.22 |2,712.5 |2.39 |blue Biaxial (-) nα = 1.585 nβ = 1.604 nγ = 1.612 2V: measured: 65° , calculated: 64° Max birefringence: δ = 0.027 |
Nasledovite
|PbMn3Al4(CO3)4(SO4)O5 · 5H2O | | | | |3.069 |Biaxial |
Paraotwayite
|Ni(OH)2-x(SO4,CO3)0.5x |monoclinic | |a = 7.89 b = 2.96 c = 13.63 β = 91.1° |318 |3.30 |Biaxial nα = 1.655 nγ = 1.705 Max birefringence: δ = 0.050 emerald-green |
Philolithite
|Pb12Mn2+(Mg,Mn2+)2(Mn2+,Mg)4(CO3)4(SO4)O6(OH)12Cl4 |Tetragonal | |a = 12.627 c = 12.595 |2008.2 | |Biaxial (+) nα = 1.920 nβ = 1.940 nγ = 1.950 Max birefringence: δ = 0.030 apple green |
Putnisite
|SrCa4Cr83+(CO3)8(SO4)(OH)16·25 H2O |Orthorhombic |Pnma |a = 15.351 b = 20.421 c = 18.270 Z = 4 |5727.3 | |Biaxial(-); α = 1.552 nβ = 1.583 nγ = 1.599 Max birefringence: δ =0.047 violet |
rowspan="2" |Pyroaurite
| rowspan="2" |Mg6Fe2(SO4,CO3)(OH)16·4H2O |Trigonal |R3_m |a = 3.1094 c = 23.4117 |196.03 |2.1 |Uniaxial (-) nω = 1.564 nε = 1.543 Max birefringence: δ = 0.021 |
Hexagonal
|P63/mmc |a = 3.113 c = 15.61 |131.01 | | | |
Rapidcreekite
|Ca2(SO4)(CO3)•4H2O |orthorhombic | |a = 15.49 b = 19.18 c = 6.15 |1827.15 | |Biaxial (+) nα = 1.516 nβ = 1.518 nγ = 1.531 2V: measured: 45° , calculated: 44° Max birefringence: δ = 0.015 |
Schröckingerite
|NaCa3(UO2)(SO4)(CO3)3F•10(H2O) |triclinic |P{{overbar|1}} |a = 9.634 b = 9.635 c = 14.391 α = 91.41(1)°, β = 92.33(1)°, γ = 120.26(1)° | | |Biaxial (-) nα = 1.495 nβ = 1.543 nγ = 1.544 Max birefringence: δ = 0.049 |
Susannite
|trigonal |P3 |a = 9.07 Å, c = 11.57 Å Z=3 |824.62 |6.52 |clear |
Tatarskite
|Ca6Mg2(SO4)2(CO3)2(OH)4Cl4•7H2O{{cite web |title=Tatarskite: Mineral information, data and localities. |url=https://www.mindat.org/min-3894.html |website=www.mindat.org |access-date=10 May 2020}} |Orthorhombic | | | |2.341 |nα = 1.567(2) nβ = 1.654(2) nγ = 1.722 biaxial(-) 2V=83 |
Thaumasite
|Ca3(SO4)[Si(OH)6](CO3) · 12H2O |hexagonal |P63 |a = 11.030 c = 10.396 |1095.3 | |Uniaxial (-) nω = 1.507 nε = 1.468 Max birefringence: δ = 0.039 |
Tychite
|Na6Mg2(SO4)(CO3)4 |Isometric |Fd3 |a = 13.9038 Z=8 |2687.82 |2.456 |isotropic |
Alloriite
|Na19K6Ca5[Al22Si26O96](SO4)5Cl(CO3)x(H2O) |trigonal |P31c |a = 12.892 c = 21.340 | | | |
Potassium-Schröckingerite
|KCa3(UO2)(CO3)3(SO4)F•10H2O |triclinic | | | | |
Artificial
class="wikitable sortable"
!name !formula !formula weight !crystal system !space group !unit cell !volume !density !refractive index !comment !CAS !reference |
|Na4CO3SO4
| |Hexagonal |P{{overbar|3}}m1 |a=5.2284 c=6.8808 Z=1 | |2.538 |uniaxial (-) n=~1.45 | | |{{Cite web|last1=Swanson|first1=Howard E.|last2=McMurdie|first2=Howard F.|last3=Morris|first3=Marlene C.|last4=Evans|first4=Eloise H.|last5=Paretzkin|first5=Boris|date=February 1974|title=Standard X-ray Diffraction Powder Patterns: Section 11. Data for 70 Substances|url=https://digital.library.unt.edu/ark:/67531/metadc13203/m1/57/|access-date=2020-06-09|website=UNT Digital Library|page=51|language=en}}{{cite journal|last1=Wang|first1=Jinsheng|last2=Wu|first2=Yinghai|last3=Anthony|first3=Edward J.|date=July 2007|title=Reactions of solid CaSO4 and Na2CO3 and formation of sodium carbonate sulfate double salts|journal=Thermochimica Acta|volume=459|issue=1–2|pages=121–124|doi=10.1016/j.tca.2007.04.014}} |
|Mg4(OH)2(CO3)2SO4·6H2O
| | | | | | | | | |
LDH-SO4-CO3
|Mg6Al2SO4CO3(OH)14·4H2O | | |P{{overbar|3}}m |a=3.070 c=22.3 | | | |layered | |
|Co6Al2SO4CO3(OH)14·4H2O
| | | | | | | | | |
|Cu6Al2SO4CO3(OH)14·4H2O
| | | | | | | | | |
colspan="12" |Complexes |
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Tetrammine carbonatocobalt(III) sulfate trihydrate
|[Co(NH3)4CO3]2SO4·3H2O | |Monoclinic |P21/c |a=7.455 b=10.609 c=23.627 β =98.346 Z=4 |1849 |1.88 | |dark red | |
μ-Carbonato-bis(pentaamminecobalt(III)) sulfate tetrahydrate
|[Co(NH3)5]2CO3SO4·4H2O | | | | | | | |dark red |49731-04-6 |
μ-Carbonato-μ-dihydroxo-bis(triamminecobalt(III)) sulfate pentahydrate
|[(NH3)3Co(μ-OH)2(μ-CO3)Co(NH3)3]SO4 . 5H2O |500.21 |Triclinic | |a= 6.6914 b= 11.2847 c= 11.825, α = 92.766 β= 99.096 γ= 101.496 |861.1 |1.929 | |dark red |75476-69-6 |