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UM1977-02-CO:AlCaH

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Formula:
Ca6Al2(CO3)3O6 · 32H2O
also expressed as Ca3Al2O6•3CaCO3•32H2O
First Recorded Locality:
As thin films within veins that cut calc-silicate-hydrate rocks; also overgrowing
crystals of ettringite.


Hide all sections | Show all sections

Classification of UM1977-02-CO:AlCaHHide

Notes:
Unnamed (probably invalid)
Approval History:
Unnamed, and probably invalid.
5.DB.05

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

Optical Data of UM1977-02-CO:AlCaHHide

Type:
Uniaxial (-)
RI values:
nω = 1.476 nε = 1.456
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Comments:
synthetic material with 29 water molecules has ω=1.48 and ε=1.456

Chemical Properties of UM1977-02-CO:AlCaHHide

Formula:
Ca6Al2(CO3)3O6 · 32H2O

also expressed as Ca3Al2O6•3CaCO3•32H2O

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.4Å(
Comments:
one intense line at 9.4A. most line overlapped by those of ettringite

First Recorded Occurrence of UM1977-02-CO:AlCaHHide

Synonyms of UM1977-02-CO:AlCaHHide

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.05Para-alumohydrocalciteCaAl2(CO3)2(OH)4 · 6H2O
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.

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 UM1977-02-CO:AlCaHHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Gross, S. (1977): The mineralogy of the Hatrurim formation, Israel: Geol. Survey Israel Bulletin 70, 80p. [Am. Min. 63,426(1978)abstract]
Smith, D.G.W., Nickel, E.H. (2007): A System of Codification for Unnamed Minerals: Report of the SubCommittee for Unnamed Minerals of the IMA Commission on New Minerals, Nomenclature and Classification. Canadian Mineralogist: 45: 983-1055; http://nrmima.nrm.se/Valid2009_03.pdf (2016)

Internet Links for UM1977-02-CO:AlCaHHide

Localities for UM1977-02-CO:AlCaHHide

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.
Israel (FRL)
 
  • Negev
Gross, S. (1977)
 
Mineral and/or Locality  
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