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Eitelite

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Mapco Shrine Hospital No. 1 well, Duchesne Co., Utah, USA
© 2007, JGW

Formula:
Na
 
2
Mg(CO
 
3
)
 
2
System:TrigonalHardness:3½
Name:For Wilhelm Eitel, Director, Institute of Silicate Research, University of Toledo, Ohio, who first synthesized it.
This page provides mineralogical data about Eitelite.

Classification of Eitelite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:5/B.05-10
Nickel-Strunz 10th (pending) edition ID:5.AC.05

5 : CARBONATES (NITRATES)
A : Carbonates without additional anions, without H2O
C : Alkali and alkali-earth carbonates
Dana 8th edition ID:14.3.2.1

14 : ANHYDROUS NORMAL CARBONATES
3 : A2B(XO3)2
Hey's CIM Ref.:11.3.10

11 : Carbonates
3 : Carbonates of Mg
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Type Occurrence of Eitelite

Type Locality:Carter Oil Company Poulson No. 1 Well, Duchesne Co., Utah, USA
Year of Discovery:1954

Physical Properties of Eitelite

Hardness (Mohs):3½

Crystallography of Eitelite

Crystal System:Trigonal
Cell Parameters:a = 4.94Å, c = 16.39Å
Ratio:a:c = 1 : 3.318
Unit Cell Volume:V 346.39 ų (Calculated from Unit Cell)

Optical Data of Eitelite

Type:Uniaxial (-)
RI values: nω = 1.605 nε = 1.450
Maximum Birefringence:δ = 0.155

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

Chemical Properties of Eitelite

Formula:
Na
 
2
Mg(CO
 
3
)
 
2
Essential elements:C, Mg, Na, O
All elements listed in formula:C, Mg, Na, O

Relationship of Eitelite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.AC.10Nyerereite
Na
 
2
Ca(CO
 
3
)
 
2
5.AC.10Zemkorite
Na
 
2
Ca(CO
 
3
)
 
2
5.AC.15Bütschliite
K
 
2
Ca(CO
 
3
)
 
2
5.AC.20Fairchildite
K
 
2
Ca(CO
 
3
)
 
2
5.AC.25Shortite
Na
 
2
Ca
 
2
(CO
 
3
)
 
3
5.AC.30Burbankite
(Na,Ca)
 
3
(Sr,Ba,Ce)
 
3
(CO
 
3
)
 
5
5.AC.30Calcioburbankite
Na
 
3
(Ca,REE,Sr)
 
3
(CO
 
3
)
 
5
5.AC.30Khanneshite
(Na,Ca)
 
3
(Ba,Sr,Ce,Ca)
 
3
(CO
 
3
)
 
5
5.AC.30Sanrománite
Na
 
2
CaPb
 
3
[CO
 
3
]
 
5
Related Minerals - Hey's Index Grouping:

- +
11.3.1Magnesite
MgCO
 
3
11.3.2Barringtonite
MgCO
 
3
·2H
 
2
O
11.3.3Nesquehonite
MgCO
 
3
·3H
 
2
O
11.3.4Lansfordite
MgCO
 
3
·5H
 
2
O
11.3.5Pokrovskite
Mg
 
2
[(OH)
 
2
|CO
 
3
]
11.3.6Artinite
Mg
 
2
[(OH)
 
2
|CO
 
3
] · 3H
 
2
O
11.3.7Hydromagnesite
Mg
 
5
[(CO
 
3
)
 
4
(OH)
 
2
] · 4H
 
2
O
11.3.8Giorgiosite
Mg
 
5
[(CO
 
3
)
 
4
(OH)
 
2
] · 4H
 
2
O
11.3.9Dypingite
Mg
 
5
[OH|(CO
 
3
)
 
2
]
 
2
 · 5H
 
2
O
11.3.11Mcguinnessite
(Mg,Cu)
 
2
[(OH)
 
2
|CO
 
3
]

Other Names for Eitelite

Other Languages:
German:Eitelit
Russian:Эйтелит
Spanish:Eitelita

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 Eitelite

Reference List:American Mineralogist: 40: 326-327.

Neues Jahrbuch für Mineralogie, Monatshefte (1980): 231-236.

American Mineralogist: 58: 211-217.

Internet Links for Eitelite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Eitelite in the Natural History Museum (London) online catalogue
  • Eitelite details from Handbook of Mineralogy (PDF)
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    Localities for Eitelite

    (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
     
    • Yukon Territory
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
    		www.koeln.netsurf.de/~w.steffens/khib.htm
    Tajikistan
     
    • Region of Republican Subordination
      • Tien Shan Mts
        • Alai (Alayskiy) Range
    		http://www.koeln.netsurf.de/~w.steffens/dara.htm
    USA
     
    • Utah
      • Duchesne Co.
    		Am Min 44:326-327
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    http://gsa.confex.com/gsa/2002AM/finalprogram/abstract_45510.htm.
    Am Min 45:188-199
    Am Min 58:211-217
    Mineral and/or Locality
    Google
     
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