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Revdite

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Formula:
Na16Si16O27(OH)26 · 28H2O
Colour:
Colourless, white
Lustre:
Vitreous, Pearly
Hardness:
2
Specific Gravity:
1.94
Crystal System:
Monoclinic
Name:
Named after its discovery locality.
This page provides mineralogical data about Revdite.


Classification of Revdite

Approved
Approval Year:
1979
9.DM.30

9 : SILICATES (Germanates)
D : Inosilicates
M : Inosilicates with 6-periodic single chains
74.3.6.1

74 : PHYLLOSILICATES Modulated Layers
3 : Modulated Layers with joined strips
14.1.3

14 : Silicates not Containing Aluminum
1 : Silicates of the alkali metals

Physical Properties of Revdite

Vitreous, Pearly
Transparency:
Transparent
Colour:
Colourless, white
Hardness:
Cleavage:
Perfect
Perfect on {100}, less perfect on {010}
Density:
1.94 g/cm3 (Measured)    1.93 g/cm3 (Calculated)

Optical Data of Revdite

Type:
Biaxial (-)
RI values:
nα = 1.469 nβ = 1.482 nγ = 1.490
2V:
Measured: 75° , Calculated: 75°
Max Birefringence:
δ = 0.021
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively weak

Chemical Properties of Revdite

Formula:
Na16Si16O27(OH)26 · 28H2O
Common Impurities:
K

Crystallography of Revdite

Crystal System:
Monoclinic
Class (H-M):
2 - Sphenoidal
Space Group:
B2
Cell Parameters:
a = 5.383 Å, b = 9.972 Å, c = 6.91 Å
β = 96.78°
Ratio:
a:b:c = 0.54 : 1 : 0.693
Unit Cell V:
368.33 ų (Calculated from Unit Cell)
Z:
2

Type Occurrence of Revdite

Synonyms of Revdite

Other Language Names for Revdite

German:Revdit
Russian:Ревдит
Spanish:Revdita

Common Associates

Associated Minerals Based on Photo Data:
Manganoneptunite1 photo of Revdite associated with Manganoneptunite on mindat.org.
Manaksite1 photo of Revdite associated with Manaksite on mindat.org.
Microcline1 photo of Revdite associated with Microcline on mindat.org.

Related Minerals - Nickel-Strunz Grouping

9.DM.05StokesiteCaSn[Si3O9] · 2H2O
9.DM.10CalciohilairiteCaZr[SiO3]3 · 3H2O
9.DM.10HilairiteNa2Zr[SiO3]3 · 3H2O
9.DM.10KomkoviteBaZr[Si3O9] · 3H2O
9.DM.10Sazykinaite-(Y)Na5YZr[SiO3]6 · 6H2O
9.DM.10Pyatenkoite-(Y)Na5YTi[SiO3]6 · 6H2O
9.DM.15GaidonnayiteNa2Zr(Si3O9) · 2H2O
9.DM.15GeorgechaoiteNaKZr[Si3O9] · 2H2O
9.DM.20ChkaloviteNa2BeSi2O6
9.DM.25VlasoviteNa2ZrSi4O11
9.DM.35ScheuchzeriteNa(Mn,Mg,Zn)9[VSi9O28(OH)](OH)3
9.DM.40TerskiteNa4ZrSi6O16 · 2H2O

Related Minerals - Hey's Chemical Index of Minerals Grouping

14.1.1NatrosiliteNa2Si2O5
14.1.2ErtixiiteNa2Si4O9
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 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 Revdite

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Zap.Vses.Mineral.Obshch. 109, 565-569(1980) - American Mineralogist (1982): 67: 1076 [abstract]
American Mineralogist (1993): 78: 1112.

Internet Links for Revdite

mindat.org URL:
https://www.mindat.org/min-3395.html
Please feel free to link to this page.

Localities for Revdite

This 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.
(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.
Canada
 
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
HORVÁTH, L., and GAULT, R.A. (1990) The mineralogy of Mont Saint‑Hilaire. Mineralogical Record, 21, 284‑359.; HORVÁTH, L. and HORVÁTH-PFENNINGER, E. (2000) Die Mineralien des Mont Saint-Hilaire. Lapis, 25, Nr. 7/8, 23-61 (in German).; HORVÁTH, L., PFENNINGER‑HORVÁTH, E. (2000) I minerali di Mont-Saint-Hilaire (Québec, Canada) Rivista Mineralogica Italiana, XXIV, 140-202 (in Italian with English summary).
Russia
 
  • Far-Eastern Region
    • Sakhalinskaya Oblast'
      • Kuril Islands (Kurile Islands)
        • Paramushir Island
Bortnikova, S. B., Bessonova, E. P., & Zelenskii, M. E. (2005). Hydrogeochemistry of thermal springs at Ebeco volcano (Kuril Islands). In Proceedings World Geothermal Congress 2005. Antalia, Turkey, 24-29 April.
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
        • Khibiny Massif
Am Min 79:1011
            • Rasvumchorr Mine
Pekov I.V., Zubkova N.V., Filinchuk Ya.E., Chukanov N.V., Zadov A.E., Pushcharovsky D.Yu., Gobechiya E.R. (2010): Shlykovite, KCa[Si4O9(OH)]·3H2O, and cryptophyllite, K2Ca[Si4O10]·5H2O, two new mineral species from the Khibiny alkaline complex, Kola Peninsula, Russia. Zapiski RMO, 139(1), 37-50.
        • Lovozero Massif
[World of Stones 95:5-6, p64]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
          • Kedykverpakhk Mt
            • Karnasurt underground mine
              • Kedyk area
Mineralogical Record: 36(4): 397-416.
Mineral and/or Locality  
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