according to E.H. Nickel & M.C. Nichols (2008), H. Strunz & E.H. Nickel (2001)

           under construction !!!!

(Carbonates, Nitrates)

5.C: Carbonates without additional anions, with water

5.CA. With medium-sized cations
5.CA.05. Nesquehonite group
Nesquehonite Mg(CO3) · 3 H2O mon., P21/n       G

5.CA.10. Lansfordite group
Lansfordite Mg(CO3) · 5 H2O mon., P21/a G

5.CA.15. Barringtonite group
Barringtonite Mg(CO3) · 2 H2O tric., P1 or P-1 N

5.CA.20. Hellyerite group
Hellyerite Ni(CO3) · 6 H2O mon., C2/c A

5.CB. With large cations (Alkali and Alkali-Earth Carbonates)
5.CB.05. Thermonatrite group
Thermonatrite Na2(CO3) · H2O orth., Pca21 G

5.CB.10. Natron group
Natron Na2(CO3) · 10 H2O mon., Cc A

5.CB.15. Trona group
Trona Na3(HCO3)(CO3) · 2 H2O mon., C2/c G

5.CB.20. Monohydrocalcite group
Monohydrocalcite Ca(CO3) · H2O trig., P31 G

5.CB.25. Ikaite group
Ikaite Ca(CO3) · 6 H2O mon., C2/c IMA 1962-005

5.CB.30. Pirssonite group
Pirssonite Na2Ca(CO3)2 · 2 H2O orth., Fdd2 G

5.CB.35. Gaylussite group
Gaylussite Na2Ca(CO3)2 · 5 H2O mon., I2/a G

5.CB.40. Chalconatronite group
Chalconatronite Na2Cu(CO3)2 · 3 H2O mon., P21/n G

5.CB.45. Baylissite group
Baylissite K2Mg(CO3)2 · 4 H2O mon., P21/n IMA 1975-024

5.CB.50. Tuliokite group
Tuliokite BaNa6Th(CO3)6 · 6 H2O trig., R-3 IMA 1988-041

5.CC. With Rare Earth Elements
5.CC.05. Donnayite group
Donnayite-(Y) NaCaSr3Y(CO3)6 · 3 H2O tric., P-1 FOTO IMA 1978-007
Mckelveyite-(Y) NaCaBa3Y(CO3)6 · 3 H2O tric., P-1 Rd
    Mckelveyite-(Y)-2M NaCaBa3Y(CO3)6 · 3 H2O mon. Poly
Mckelveyite-(Nd) NaCaBa3Nd(CO3)6 · 3 H2O tric. N
Weloganite Na2Sr3Zr(CO3)6 · 3 H2O tric., P1 FOTO IMA 1967-042

Mckelveyite-(Y)-2M was originally submitted to the IMA and accepted as a new mineral (IMA 2005-012a), but later withdrawn as a polytype of mckelveyite-(Y).

5.CC.10. Tengerite group
Tengerite-(Y) Y2(CO3)3 · 2 - 3 H2O orth., Bb21m Rd
Hizenite-(Y) Ca2Y6(CO3)11 · 14 H2O orth. IMA 2011-030

5.CC.15. Lokkaite group
Lokkaite-(Y) CaY4(CO3)7 · 9 H2O orth., Cm2m IMA 1969-045

5.CC.20. Shomiokite group
Shomiokite-(Y) Na3(Y,Dy)(CO3)3 · 3 H2O orth., Pbn21 IMA 1990-015

5.CC.25. Lanthanite group
Calkinsite-(Ce) Ce2(CO3)3 · 4 H2O orth., P21221 A
Lanthanite-(La) La2(CO3)3 · 8 H2O orth., Pbnb A
Lanthanite-(Ce) Ce2(CO3)3 · 8 H2O orth., Pbnb FOTO IMA 1983-055
Lanthanite-(Nd) Nd2(CO3)3 · 8 H2O orth., Pbnb IMA 1979-074

5.CC.30. Adamsite group
Adamsite-(Y) NaY(CO3)2 · 6 H2O tric. IMA 1999-020

5.CC.35. Decrespignyite group
Decrespignyite-(Y) Y4Cu(CO3)4Cl(OH)5 · 3 H2O mon. FOTO IMA 2001-027

5.CC.40. Galgenbergite group
Galgenbergite-(Ce) CaCe2(CO3)4 · H2O tric., P-1 IMA 1997-036

5.CC.45. Ewaldite group
Ewaldite Ba(Na,Ca,Y,Ce,K)(CO3)2 · 2.6 H2O hex., P63mc IMA 1969-013

5.CC.50. Kimuraite group
Kimuraite-(Y) CaY2(CO3)6 · 6 H2O orth., I2mm IMA 1984-073

5.CC.55. Lecoqite group *
Lecoqite-(Y) * Na3Y(CO3)3 · 6 H2O hex., P63 IMA 2008-069

in bold: grandfathered, IMA accepted, renamed and redefined (with IMA approval) minerals,
in normal letters: minerals published without IMA approval, questionable minerals, polytypes

G = Grandfathered minerals: original description preceded the establishment of the CNMNC in 1959, and generally regarded as a valid species
A or IMA No. = Minerals approved by the CNMNC
Rd = Redefinition of the mineral approved by the CNMNC
Rn = Renamed with approval by the CNMNC
GROUP = a name used to designate a group of species
N = Mineral published without approval of the CNMNC
Q = Questionable mineral
H = Hypothetical mineral (synthetic, anthropogenic, etc.)
D = Discredited by the CNMNC
Poly = Polytype

© Thomas Witzke / Stollentroll (2007 - 2012)