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Ertixiite

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Formula:
Na2Si4O9
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

Approved
9.HA.05

9 : SILICATES (Germanates)
H : Unclassified silicates
A : With Alkali and Alkali-earth Elements
78.7.3.1

78 : Unclassified Silicates
7 :
14.1.2

14 : Silicates not Containing Aluminum
1 : Silicates of the alkali metals
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First Recorded Occurrence of Ertixiite

Year of Discovery:
1985

Physical Properties of Ertixiite

Hardness (Mohs):
0 - 6½

Chemical Properties of Ertixiite

Formula:
Na2Si4O9
Essential elements:
All elements listed in formula:
Common Impurities:
Al,Fe,Ca

Relationship of Ertixiite to other Species

9.HA.10KenyaiteNa2Si22O41(OH)8 · 6H2O
9.HA.20WawayandaiteCa6Mn2BBe9Si6O23(OH,Cl)15
9.HA.25MagbasiteKBaFe3+Mg7Si8O22(OH)2F6
9.HA.30AfanasyevaiteCa8[Si2O7]OCl2
9.HA.40IgumnoviteCa3Al2(SiO4)2Cl4
9.HA.50RudenkoiteSr3(Al3.5Si3.5)O10(OH,O)8Cl2 · H2O
9.HA.55FoshallasiteCa3[Si2O7] · 3H2O(?)
9.HA.60NagelschmidtiteCa7(SiO4)2(PO4)2
9.HA.65Caryochroite(Na,Sr)3(Fe3+,Mg)10[(O,OH)9|Ti2Si12O37] · (H2O,O,OH)17
9.HA.70JuaniteCa10Mg4Al2Si11O39 · 4H2O or near
9.HA.75TacharaniteCa12Al2Si18O51 · 18H2O
9.HA.80OyeliteCa10Si8B2O29 · 12.5H2O
9.HA.85DenisoviteCa2(K,Na)Si3O8(F,OH)2
9.HA.90Tiettaite(Na,K)17FeTiSi16O29(OH)30 · 2H2O
14.1.1NatrosiliteNa2Si2O5
14.1.3RevditeNa16Si16O27(OH)26 · 28H2O
14.1.4MakatiteNa2Si4O8(OH)2 · 4H2O
14.1.5MagadiiteNa2Si14O29 · 11H2O
14.1.6KenyaiteNa2Si22O41(OH)8 · 6H2O
14.1.7GrumantiteNa(HSi2O5) · H2O
14.1.8SilinaiteNaLiSi2O5 · 2H2O

Other Names for Ertixiite

Name in Other Languages:
German:Ertixiit
Simplified Chinese:额尔齐斯石
Spanish:Ertixiita

Other Information

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 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

Localities for Ertixiite

(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Mineral and/or Locality  
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