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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 Xinjiang Ertix; in standard Chinese phonetics E'erqisi) 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 pegmatite (Altay No. 3 pegmatite), Altay Mine, Koktokay pegmatite field (Keketuohai pegmatite field), Fuyun Co. (Koktokay Co.), Aletai Prefecture (Altay Prefecture), Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture), Xinjiang 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
Simplified for copy/paste:Na2Si4O9
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
KBaFe
3+
 
Mg
 
7
Si
 
8
O
 
22
(OH)
 
2
F
 
6
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
Na
 
2
Si
 
14
O
 
29
· 11H
 
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
Simplified Chinese:额尔齐斯石
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

Search Engines:
  • Look for Ertixiite on Google
  • Look for Ertixiite images on Google
  • External Links:
  • Look for Ertixiite on Webmineral
  • Look for Ertixiite on Athena Mineralogy
  • Look for Ertixiite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Ertixiite details from Handbook of Mineralogy (PDF)
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  • Localities for Ertixiite

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