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Ertixiite

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Formula:
Na
 
2
Si
 
4
O
 
9
Hardness:0 - 6½
Name:For the river Irtysh (in Chinese, Ertixi), which passes through the valley below the type locality.
This page provides mineralogical data about Ertixiite.

Classification of Ertixiite

IMA status:Approved
Strunz 8th edition ID:8/D.12-10
Nickel-Strunz 10th (pending) edition ID:9.HA.05

9 : SILICATES (Germanates)
H : Unclassified silicates
A : With Alkali and Alkali-earth Elements
Dana 8th edition ID:78.7.3.1

78 : Unclassified Silicates
7 :
Hey's CIM Ref.:14.1.2

14 : Silicates not Containing Aluminum
1 : Silicates of the alkali metals
mindat.org URL:http://www.mindat.org/min-1406.html
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Type Occurrence of Ertixiite

Type Locality:Koktokay No. 3 (Altay No. 3) pegmatite, Altay Mine, Koktokay (Keketuohai) Pegmatite field, Fuyun Co. (Koktokay Co.), Aletai (Altay) Prefecture, Yili Hasake (Ili Kazakh) Autonomous Prefecture, Xinjiang (Xinjiang-Uygur) Autonomous Region, China
Year of Discovery:1985

Physical Properties of Ertixiite

Hardness (Mohs):0 - 6½

Chemical Properties of Ertixiite

Formula:
Na
 
2
Si
 
4
O
 
9
Essential elements:Na, O, Si
All elements listed in formula:Na, O, Si
Common Impurities:Al,Fe,Ca

Relationship of Ertixiite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.HA.10Kenyaite
Na
 
2
Si
 
22
O
 
41
(OH)
 
8
 · 6H
 
2
O
9.HA.20Wawayandaite
Ca
 
6
Mn
 
2
BBe
 
9
Si
 
6
O
 
23
(OH,Cl)
 
15
9.HA.25Magbasite
KBa(Al,Sc)(Mg,Fe)
 
6
Si
 
6
O
 
20
F
 
2
9.HA.30Afanasyevaite
Ca
 
8
[Si
 
2
O
 
7
]OCl
 
2
9.HA.40Igumnovite
Ca
 
3
Al
 
2
(SiO
 
4
)
 
2
Cl
 
4
9.HA.50Rudenkoite
Sr
 
3
(Al
 
3.5
Si
 
3.5
)O
 
10
(OH,O)
 
8
Cl
 
2
 · H
 
2
O
9.HA.55Foshallasite
Ca
 
3
[Si
 
2
O
 
7
] · 3H
 
2
O(?)
9.HA.60Nagelschmidtite
Ca
 
7
(SiO
 
4
)
 
2
(PO
 
4
)
 
2
9.HA.65Caryochroite
(Na,Sr)
 
3
(Fe
3+
 
,Mg)
 
10
[(O,OH)
 
9
|Ti
 
2
Si
 
12
O
 
37
] · (H
 
2
O,O,OH)
 
17
9.HA.70Juanite
Ca
 
10
Mg
 
4
Al
 
2
Si
 
11
O
 
39
 · 4H
 
2
O or near
9.HA.75Tacharanite
Ca
 
12
Al
 
2
Si
 
18
O
 
51
 · 18H
 
2
O
9.HA.80Oyelite
Ca
 
10
Si
 
8
B
 
2
O
 
29
 · 12.5H
 
2
O
9.HA.85Denisovite
Ca
 
2
(K,Na)Si
 
3
O
 
8
(F,OH)
 
2
9.HA.90Tiettaite
(Na,K)
 
17
FeTiSi
 
16
O
 
29
(OH)
 
30
 · 2H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
14.1.1Natrosilite
Na
 
2
Si
 
2
O
 
5
14.1.3Revdite
Na
 
16
Si
 
16
O
 
27
(OH)
 
26
 · 28H
 
2
O
14.1.4Makatite
Na
 
2
Si
 
4
O
 
8
(OH)
 
2
 · 4H
 
2
O
14.1.5Magadiite
NaSi
 
7
O
 
13
(OH)
 
3
 · 3H
 
2
O
14.1.6Kenyaite
Na
 
2
Si
 
22
O
 
41
(OH)
 
8
 · 6H
 
2
O
14.1.7Grumantite
Na(HSi
 
2
O
 
5
) · H
 
2
O
14.1.8Silinaite
NaLiSi
 
2
O
 
5
 · 2H
 
2
O

Other Names for Ertixiite

Synonyms:
IMA1983-042
Other Languages:
German:Ertixiit
Spanish:Ertixiita

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 Ertixiite

Reference List:

- +
Zhang Rubo, Han Fengming, and Du Chongliang (1985): Ertixiite - A new mineral from the Altai pegmatite mine, Xinjiang, China. Geochemistry [China] 4(2), 192-195 (in English). - American Mineralogist (1986), 71, 1544 (abstract).

Internet Links for Ertixiite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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    • Localities for Ertixiite

    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.
    China
     
    • Xinjiang (Xinjiang-Uygur) Autonomous Region
      • Yili Hasake (Ili Kazakh) Autonomous Prefecture
        • Aletai (Altay) Prefecture
          • Fuyun Co. (Koktokay Co.)
            • Koktokay (Keketuohai) Pegmatite field
              • Altay Mine
    		Zhang Rubo, Han Fengming, and Du Chongliang (1985): Geochemistry [China] 4(2), 192-95.
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