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About RudenkoiteHide

Sr3(Al3.5Si3.5)O10(OH,O)8Cl2 · H2O
Crystal System:
Named in honor of Sergey Alexandrovich Rudenko (1917-1992), Professor at the St. Petersburg (Leningrad) Mining Institute.
This page provides mineralogical data about Rudenkoite.

Classification of RudenkoiteHide

Approval Year:
First Published:

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

Physical Properties of RudenkoiteHide

1½ on Mohs scale

Optical Data of RudenkoiteHide

Biaxial (+)
RI values:
nα = 1.693(2) nβ = 1.648(2) nγ = 1.665(2)
Measured: 75° (10), Calculated: 72°
Max Birefringence:
δ = 0.028
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate r>v
Not Visible

Chemical Properties of RudenkoiteHide

Sr3(Al3.5Si3.5)O10(OH,O)8Cl2 · H2O
IMA Formula:
Sr3Al3.5Si3.5O10(OH,O)8Cl2 · H2O

Crystallography of RudenkoiteHide

Crystal System:
Cell Parameters:
a = 5.893(5) Å, b = 7.262(5) Å, c = 10.288(8) Å
β = 97.23(3)°
a:b:c = 0.811 : 1 : 1.417
Unit Cell V:
436.77 ų (Calculated from Unit Cell)
P2/m, P2, or Pm.

Type Occurrence of RudenkoiteHide

General Appearance of Type Material:
White spheroidal aggregates to 7 mm; aggregates of tiny flexible fibers
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Russian Academy of Science,
Moscow, Russia (catalogue no. 3121/1).
Chukanov, N.B., Dubinchuk, V.T., Murashko, M.N., Zadov, A.E., Karpenko, V.Y. (2004) Rudenkoite Sr3Al3.5Si3.5O10(OH7.5,O0.5)Cl2·H2O, a new mineral from phlogopite deposits of Southern Yakutia. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva: 133(3): 37-41.

Synonyms of RudenkoiteHide

Other Language Names for RudenkoiteHide

Simplified Chinese:鲁登克石
Traditional Chinese:魯登克石

Related Minerals - Nickel-Strunz GroupingHide

9.HA.10KenyaiteNa2Si22O41(OH)8 · 6H2OMon.
9.HA.25MagbasiteKBaFe3+Mg7Si8O22(OH)2F6Orth. mmm (2/m 2/m 2/m) : Cmma
9.HA.55FoshallasiteCa3[Si2O7] · 3H2O(?)
9.HA.60NagelschmidtiteCa7(SiO4)2(PO4)2Hex. 6 : P61
9.HA.65Caryochroite(Na,Sr)3(Fe3+,Mg)10[Ti2Si12O37] · (H2O,O,OH)17Mon.
9.HA.70JuaniteCa10Mg4Al2Si11O39 · 4H2O or near
9.HA.75TacharaniteCa12Al2Si18O33 (OH)36Mon.
9.HA.80OyeliteCa10Si8B2O29 · 12.5H2OOrth.
9.HA.90Tiettaite(Na,K)17FeTiSi16O29(OH)30 · 2H2OOrth. mmm (2/m 2/m 2/m) : Cmcm

Other InformationHide

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 RudenkoiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Chukanov, N.B., Dubinchuk, V.T., Murashko, M.N., Zadov, A.E., Karpenko, V.Y. (2004) Rudenkoite Sr3Al3.5Si3.5O10(OH7.5,O0.5)Cl2·H2O, a new mineral from phlogopite deposits of Southern Yakutia. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva: 133(3): 37-41.
Piilonen, P.C., Ercit, T.S., Roberts, A.C. (2005) New mineral names. American Mineralogist: 90: 768-773.
Pekov, I.V. (2007) New minerals from former Soviet Union countries, 1998-2006: new minerals approved by the IMA commission on new minerals and mineral names. Mineralogical Almanac: 11: 9-51.

Internet Links for RudenkoiteHide

Localities for RudenkoiteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Russia (TL)
  • Sakha Republic (Yakutia)
    • Aldan
Am Min 90:770-771
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