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Para-alumohydrocalcite

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About Para-alumohydrocalciteHide

Classification of Para-alumohydrocalciteHide

Approved
5.DB.05

5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
B : With large and medium-sized cations
16b.2.3.2

16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
2 : AmBn(XO3)pZqxH2O & with (m+n):p = 3:2
11.7.8

11 : Carbonates
7 : Carbonates of Al

Optical Data of Para-alumohydrocalciteHide

Type:
Biaxial (-)
RI values:
nα = 1.473 nβ = 1.492 nγ = 1.502
2V:
Measured: 69° , Calculated: 70°
Max Birefringence:
δ = 0.029
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
none

Chemical Properties of Para-alumohydrocalciteHide

Formula:
CaAl2(CO3)2(OH)4 · 6H2O

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.90 (100)
6.20 (30)
4.04 (20)
3.90 (25)
3.32 (28)
2.68 (24)
2.64 (32)

Type Occurrence of Para-alumohydrocalciteHide

Synonyms of Para-alumohydrocalciteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Realgar1 photo of Para-alumohydrocalcite associated with Realgar on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

5.DB.05AlumohydrocalciteCaAl2(CO3)2(OH)4 · 4H2OTric. 1 : P1
5.DB.05NasledovitePbMn3Al4(CO3)4(SO4)O5 · 5H2O
5.DB.05UM1977-02-CO:AlCaHCa6Al2(CO3)3O6 · 32H2O
5.DB.10DresseriteBaAl2(CO3)2(OH)4 · H2OOrth. mmm (2/m 2/m 2/m)
5.DB.10DundasitePbAl2(CO3)2(OH)4 · H2OOrth. mmm (2/m 2/m 2/m)
5.DB.10MontroyaliteSr4Al8(CO3)3(OH,F)26 · 10-11H2O
5.DB.10StrontiodresseriteSrAl2(CO3)2(OH)4 · H2OOrth.
5.DB.10PetterditePbCr3+2(CO3)2(OH)4 · H2OOrth.
5.DB.10KochsándoriteCaAl2(CO3)2(OH)4 · H2OOrth. mmm (2/m 2/m 2/m) : Pnma
5.DB.15HydrodresseriteBaAl2(CO3)2(OH)4 · 3H2OTric.
5.DB.20Schuilingite-(Nd)PbCu(Nd,Gd,Sm,Y)(CO3)3(OH) · 1.5H2O
5.DB.25SergeeviteCa2Mg11(CO3)9(HCO3)4(OH)4•6H2O
5.DB.30SzymańskiiteHg16(Ni,Mg)6(CO3)12(OH)12(H3O)8•3H2OHex.

Related Minerals - Dana Grouping (8th Ed.)Hide

16b.2.3.1AlumohydrocalciteCaAl2(CO3)2(OH)4 · 4H2OTric. 1 : P1

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

11.7.1ScarbroiteAl5(CO3)(OH)13 · 5H2OHex.
11.7.2HydroscarbroiteAl14(CO3)3(OH)36 · nH2OTric.
11.7.3DawsoniteNaAlCO3(OH)2Orth. mmm (2/m 2/m 2/m) : Imma
11.7.4HydrotalciteMg6Al2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
11.7.5Hydrotalcite-2HMg6Al2(CO3)(OH)16 · 4H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
11.7.6IndigiriteMg2Al2(CO3)4(OH)2 · 15H2O
11.7.7AlumohydrocalciteCaAl2(CO3)2(OH)4 · 4H2OTric. 1 : P1
11.7.9TunisiteNaCa2Al4(CO3)4(OH)8ClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
11.7.10WermlanditeMg7Al2(OH)18[Ca(H2O)6][SO4]2 · 6H2OTrig. 3m (3 2/m) : P3c1
11.7.11MontroyaliteSr4Al8(CO3)3(OH,F)26 · 10-11H2O
11.7.12DresseriteBaAl2(CO3)2(OH)4 · H2OOrth. mmm (2/m 2/m 2/m)
11.7.13HydrodresseriteBaAl2(CO3)2(OH)4 · 3H2OTric.
11.7.14StrontiodresseriteSrAl2(CO3)2(OH)4 · H2OOrth.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Para-alumohydrocalciteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1978): 63: 794.
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 106: 336-337.
Zapiski Rossiyskogo Mineralogicheskogo Obshchestva: 55: 243-258.
Neues Jahrbuch für Mineralogie, Monatshefte (1969): 130-137.

Internet Links for Para-alumohydrocalciteHide

Localities for Para-alumohydrocalciteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Germany
 
  • Rhineland-Palatinate
    • Eifel
      • Niederzissen
        • Glees
Blass, G., Graf , HW., Neue Mineralienfunde aus der Vulkaneifel, MW 1/2001
Romania
 
  • Suceava Co.
Kristály, F. & Szakáll, S. (2009): Mitt. Österr. Mineral. Ges. 155, 94. (Abs.)
Russia (TL)
 
  • Povolzhsky Region
    • Samaraskaya Oblast' (Samara Oblast')
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Turkmenistan (TL)
 
  • Lebap Province
    • Chardzhou
      • Gaurdak basin (Gaurdok basin)
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
UK
 
  • England
    • Gloucestershire
      • Chipping Sodbury District
Alabaster, C. (1990) New occurrences of secondary aluminium minerals from the Bristol District. J. Russell Soc., 3 (2), 49-59.; Ryback, G. (1992). Eighth supplementary list of British Isles minerals. Adv. Sci, 875, 7.
Mineral and/or Locality  
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