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Chlormagaluminite

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Kapaevskaya Pipe, Middle Angara River, Irkutskaya Oblast', Prebaikalia (Pribaikal'e), Eastern-Siberian Region, Russia




Formula:
(Mg,Fe
2+
 
)
 
4
Al
 
2
(Cl
 
2
,CO
 
3
)(OH)
 
12
 · 2H
 
2
O
System:HexagonalHardness:1½ - 2½
Name:For its composition: chloride, magnesium and aluminium
This page provides mineralogical data about Chlormagaluminite.

Classification of Chlormagaluminite

IMA status:Approved
Strunz 8th edition ID:5/E.02-20
Nickel-Strunz 10th (pending) edition ID:5.DA.45

5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
A : With medium-sized cations
Dana 8th edition ID:10.6.10.1

10 : OXYHALIDES AND HYDROXYHALIDES
6 : AmBn(O,OH)pXq
Hey's CIM Ref.:12.1.4

12 : Carbonates with other anions
1 : Carbonates with halides
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Type Occurrence of Chlormagaluminite

Type Locality:Kapaevskaya Pipe, Middle Angara River, Irkutskaya Oblast', Prebaikalia (Pribaikal'e), Eastern-Siberian Region, Russia
Year of Discovery:1982

Physical Properties of Chlormagaluminite

Hardness (Mohs):1½ - 2½

Crystallography of Chlormagaluminite

Crystal System:Hexagonal
Cell Parameters:a = 5.29Å, c = 15.46Å
Ratio:a:c = 1 : 2.922
Unit Cell Volume:V 374.67 ų (Calculated from Unit Cell)

Optical Data of Chlormagaluminite

Type:Uniaxial (+)
RI values: nω = 1.540 nε = 1.560
Maximum Birefringence:δ = 0.020

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low

Chemical Properties of Chlormagaluminite

Formula:
(Mg,Fe
2+
 
)
 
4
Al
 
2
(Cl
 
2
,CO
 
3
)(OH)
 
12
 · 2H
 
2
O
Essential elements:Al, Cl, H, Mg, O
All elements listed in formula:Al, C, Cl, Fe, H, Mg, O

Relationship of Chlormagaluminite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.DA.05Dypingite
Mg
 
5
(CO
 
3
)
 
4
(OH)
 
2
 · 5H
 
2
O
5.DA.05Giorgiosite
Mg
 
5
(CO
 
3
)
 
4
(OH)
 
2
 · 5-6H
 
2
O
5.DA.05Hydromagnesite
Mg
 
5
(CO
 
3
)
 
4
(OH)
 
2
 · 4H
 
2
O
5.DA.05Widgiemoolthalite
Ni
 
5
(CO
 
3
)
 
4
(OH)
 
2
 · 5H
 
2
O
5.DA.05UM1986-10-CO:ClHMgMnZn
Mg
 
5
(Zn,Mn)
 
3
(CO
 
3
)
 
2
(OH,Cl)
 
12
 · H
 
2
O
5.DA.05UM1987-01-CO:HMgS
Mg
 
4
(CO
 
3
)
 
2
(OH)
 
2
 · 6H
 
2
O ?
5.DA.10Artinite
Mg
 
2
(CO
 
3
)(OH)
 
2
 · 3H
 
2
O
5.DA.10Indigirite
Mg
 
2
Al
 
2
(CO
 
3
)
 
4
(OH)
 
2
 · 15H
 
2
O
5.DA.10Chlorartinite
Mg
 
2
(CO
 
3
)(OH)Cl · 2H
 
2
O
5.DA.15Otwayite
Ni
 
2
(CO
 
3
)(OH)
 
2
 · H
 
2
O
5.DA.15Zaratite
Ni
 
3
(CO
 
3
)(OH)
 
4
 · 4H
 
2
O
5.DA.20Kambaldaite
NaNi
 
4
(CO
 
3
)
 
3
(OH)
 
3
 · 3H
 
2
O
5.DA.25Callaghanite
Cu
 
2
Mg
 
2
(CO
 
3
)(OH)
 
6
 · 2H
 
2
O
5.DA.30Claraite
(Cu,Zn)
 
3
(CO
 
3
)(OH)
 
4
 · 4H
 
2
O
5.DA.35Hydroscarbroite
Al
 
14
(CO
 
3
)
 
3
(OH)
 
36
 · nH
 
2
O
5.DA.35Scarbroite
Al
 
5
(CO
 
3
)(OH)
 
13
 · 5H
 
2
O
5.DA.40Caresite
Fe
2+
4
Al
 
2
(CO
 
3
)(OH)
 
12
 · 3H
 
2
O
5.DA.40Quintinite
Mg
 
4
Al
 
2
(CO
 
3
)(OH)
 
12
 · H
 
2
O
5.DA.40Charmarite
Mn
2+
4
Al
 
2
(CO
 
3
)(OH)
 
12
 · 3H
 
2
O
5.DA.45Barbertonite
Mg
 
6
(Cr,Al)
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.45Brugnatellite
Mg
 
6
Fe
3+
 
(CO
 
3
)(OH)
 
13
 · 4H
 
2
O
5.DA.45Manasseite
Mg
 
6
Al
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.45Sjögrenite
Mg
 
6
Fe
3+
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.45Zaccagnaite
Zn
 
4
Al
 
2
(CO
 
3
)(OH)
 
12
 · 3H
 
2
O
5.DA.50Comblainite
Ni
 
6
Co
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.50Desautelsite
Mg
 
6
Mn
3+
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.50Hydrotalcite
Mg
 
6
Al
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.50Pyroaurite
Mg
 
6
Fe
3+
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.50Reevesite
Ni
 
6
Fe
3+
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.50Stichtite
Mg
 
6
Cr
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.50Takovite
Ni
 
6
Al
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
5.DA.50UM1998-10-CO:CoHNi
Co
 
6
Fe
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O ?
5.DA.55Coalingite
Mg
 
10
Fe
3+
2
(CO
 
3
)(OH)
 
24
 · 2H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
12.1.1Northupite
Na
 
3
Mg(CO
 
3
)
 
2
Cl
12.1.2Barentsite
Na
 
7
AlH
 
2
(CO
 
3
)
 
4
F
 
4
12.1.3Rouvilleite
Na
 
3
(Ca,Mn,Fe)
 
2
(CO
 
3
)
 
3
F
12.1.5Defernite
Ca
 
6
(CO
 
3
)
 
2-x
(SiO
 
4
)
 
x
(OH)
 
7
(Cl,OH)
 
1-2x
 (x=0.5)
12.1.6Brenkite
Ca
 
2
(CO
 
3
)F
 
2
12.1.7Stenonite
(Sr,Ba,Na)
 
2
Al(CO
 
3
)F
 
5
12.1.8Bastnäsite-(Ce)
(Ce,La)(CO
 
3
)F
12.1.9Bastnäsite-(La)
(La,Ce)(CO
 
3
)F
12.1.10Bastnäsite-(Y)
(Y,Ce)(CO
 
3
)F
12.1.11Parisite-(Ce)
Ca(Ce,La)
 
2
(CO
 
3
)
 
3
F
 
2
12.1.12Parisite-(Nd)
Ca(Nd,Ce,La)
 
2
(CO
 
3
)
 
3
F
 
2
12.1.13Synchysite-(Ce)
Ca(Ce,La)(CO
 
3
)
 
2
F
12.1.14Synchysite-(Y)
Ca(Y,Ce)(CO
 
3
)
 
2
F
12.1.15Synchysite-(Nd)
Ca(Nd,Y,Gd)(CO
 
3
)
 
2
F
12.1.16Röntgenite-(Ce)
Ca
 
2
(Ce,La)
 
3
(CO
 
3
)
 
5
F
 
3
12.1.17Cordylite-(Ce)
NaBaCe
 
2
(CO
 
3
)
 
4
F
12.1.19Huanghoite-(Ce)
BaCe(CO
 
3
)
 
2
F
12.1.20Zhonghuacerite-(Ce)
Ba
 
2
Ce(CO
 
3
)
 
3
F
12.1.21Cebaite-(Ce)
Ba
 
3
Ce
 
2
(CO
 
3
)
 
5
F
 
2
12.1.22Thorbastnäsite
Th(Ca,Ce)(CO
 
3
)
 
2
F
 
2
 · 3H
 
2
O
12.1.23Phosgenite
Pb
 
2
CO
 
3
Cl
 
2
12.1.24Barstowite
Pb
 
4
Cl
 
6
(CO
 
3
) · H
 
2
O
12.1.25Albrechtschraufite
Ca
 
4
Mg(UO
 
2
)
 
2
(CO
 
3
)
 
6
F
 
2
 · 17 H
 
2
O
12.1.26Kettnerite
CaBiCO
 
3
OF

Other Names for Chlormagaluminite

Synonyms:
IMA1980-098
Other Languages:
German:Chlormagaluminit
Spanish:Clormagaluminita

Other Information

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

References for Chlormagaluminite

Reference List:

- +
American Mineralogist: 68: 849.

Periodico di Mineralogia: 11: 413.

Internet Links for Chlormagaluminite

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    • Localities for Chlormagaluminite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Canada
     
    • Québec
      • Montérégie
        • Rouville RCM
          • Mont Saint-Hilaire
    		Can Min 32:843 - 854 (1994)
    Russia
     
    • Eastern-Siberian Region
      • Prebaikalia (Pribaikal'e)
        • Irkutskaya Oblast'
          • Middle Angara River
    		ZVMO,(1982) 111, 121-127; International Geology Review (1983) 1938-2839, 25 (7), 848–853; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
          • Zheleznogorsk
    		Mazurov, M.P., Grishina, S.N., Istomin, V.E., and Titov, A.T. (2007): Geology of Ore Deposits 49(4), 271-284.; Mazurov et al (2007) Geology of Ore Deposits, 49, 271–284.
    Mineral and/or Locality
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