Rudenkoite
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Rudenkoite
Formula:
Sr3(Al3.5Si3.5)O10(OH,O)8Cl2 · H2O
Colour:
White
Hardness:
1½
Crystal System:
Monoclinic
Name:
Named in honor of Sergey Alexandrovich Rudenko (Сергей Александрович Руденко) (1917-1992), Professor at the St. Petersburg (Leningrad) Mining Institute and an expert in pegmatite mineralogy.
This page provides mineralogical data about Rudenkoite.
Unique Identifiers
Mindat ID:
26665
Long-form identifier:
mindat:1:1:26665:7
GUID
(UUID V4):
(UUID V4):
901709b3-cbcc-45fd-9ad7-1a591a87e8c6
IMA Classification of Rudenkoite
Approved
IMA Formula:
Sr3Al3.5Si3.5O10(OH,O)8Cl2 · H2O
Approval year:
2003
First published:
2004
Classification of Rudenkoite
9.HA.50
9 : SILICATES (Germanates)
H : Unclassified silicates
A : With Alkali and Alkali-earth Elements
9 : SILICATES (Germanates)
H : Unclassified silicates
A : With Alkali and Alkali-earth Elements
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Rd | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Rudenkoite
Optical Data of Rudenkoite
Type:
Biaxial (+)
RI values:
nα = 1.693(2) nβ = 1.648(2) nγ = 1.665(2)
2V:
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.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
Moderate r>v
Optical Extinction:
X = a.
Pleochroism:
Not Visible
Chemistry of Rudenkoite
Mindat Formula:
Sr3(Al3.5Si3.5)O10(OH,O)8Cl2 · H2O
Crystallography of Rudenkoite
Crystal System:
Monoclinic
Cell Parameters:
a = 5.893(5) Å, b = 7.262(5) Å, c = 10.288(8) Å
β = 97.23(3)°
β = 97.23(3)°
Ratio:
a:b:c = 0.811 : 1 : 1.417
Unit Cell V:
436.77 ų (Calculated from Unit Cell)
Comment:
Space group P2/m, P2, or Pm.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 10.13 Å | (100) |
| 7.23 Å | (30) |
| 5.23 Å | (40) |
| 3.23 Å | (80) |
| 3.12 Å | (30) |
| 2.96 Å | (100) |
| 2.90 Å | (100) |
| 2.79 Å | (40) |
| 2.70 Å | (30) |
| 2.419 Å | (30) |
| 2.313 Å | (30) |
| 2.182 Å | (80) |
| 2.104 Å | (60) |
| 1.988 Å | (50) |
| 1.855 Å | (70) |
| 1.819 Å | (30) |
| 1.689 Å | (40) |
| 1.617 Å | (60) |
| 1.595 Å | (60) |
| 1.456 Å | (60) |
| 1.394 Å | (30) |
| 1.276 Å | (40) |
| 1.255 Å | (50) |
| 1.240 Å | (30) |
| 1.219 Å | (30) |
| 1.145 Å | (40) |
| 1.103 Å | (30) |
Comments:
Emeldzhakskoe phlogopite deposit, Aldan, Sakha, Russia. Data are from the type description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| High-𝑇 alteration and/or metamorphism | |
| 31 : Thermally altered carbonate, phosphate, and iron formations |
Type Occurrence of Rudenkoite
General Appearance of Type Material:
White spheroidal aggregates to 7 mm; aggregates of tiny flexible fibers.
Place of Conservation of Type Material:
A. E. Fersman Mineralogical Museum, Russian Academy of Science, Moscow, Russia (catalogue no. 3121/1).
Geological Setting of Type Material:
Prehnitized metasomatic pyroxene-scapolite rock. Found in a pseudomorph of prehnite after scapolite.
Associated Minerals at Type Locality:
Reference:
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 Rudenkoite
Other Language Names for Rudenkoite
Related Minerals - Strunz-mindat Grouping
| 9.HA. | Qeltite | Ca3TiSi2(Fe3+2Si)O14 |
| 9.HA. | Kalyuzhnyite-(Ce) | NaKCaSrCeTi(Si8O21)OF(H2O)3 |
| 9.HA. | Shinichengite | Ca5[BSi2O7(OH)2]2 · 6H2O |
| 9.HA.05 | Ertixiite | Na2Si4O9 |
| 9.HA.10 | Kenyaite | Na2Si22O41(OH)8 · 6H2O |
| 9.HA.20 | Wawayandaite | Ca6Mn2BBe9Si6O23(OH,Cl)15 |
| 9.HA.25 | Magbasite | KBaFe3+Mg7Si8O22(OH)2F6 |
| 9.HA.35 | Demagistrisite | BaCa2Mn3+4(Si3O10)(Si2O7)(OH)4 · 3H2O |
| 9.HA.37 | Donwilhelmsite | CaAl4Si2O11 |
| 9.HA.40 | Igumnovite | Ca3Al2[SiO4]2[◻Cl4] |
| 9.HA.40 | Kasatkinite | Ba2Ca8B5Si8O32(OH)3 · 6H2O |
| 9.HA.42 | Paqueite | Ca3TiSi2(Al,Ti,Si)3O14 |
| 9.HA.45 | Rippite | K2(Nb,Ti)2(Si4O12)O(O,F) |
| 9.HA.47 | Zagamiite | CaAl2Si3.5O11 |
| 9.HA.50 | α-Carnegieite | NaAlSiO4 |
| 9.HA.52 | Atheriastite | near Ca5MgFeAl6Si8O32 · 5H2O |
| 9.HA.55 | Balvraidite | |
| 9.HA.55 | Foshallasite | Ca3[Si2O7] · 3H2O(?) |
| 9.HA.57 | Bhreckite | Ca, Mg, Fe, Si, O, H |
| 9.HA.60 | Bravaisite | |
| 9.HA.60 | Nagelschmidtite | Ca7(SiO4)2(PO4)2 |
| 9.HA.65 | Caryochroite | (Na,Sr)3(Fe3+,Mg)10[Ti2Si12O37] · (H2O,O,OH)17 |
| 9.HA.70 | Juanite | Ca10Mg4Al2Si11O39 · 4H2O or near |
| 9.HA.75 | Tacharanite | Ca12Al2Si18O33 (OH)36 |
| 9.HA.80 | Oyelite | Ca10Si8B2O29 · 12.5H2O |
| 9.HA.85 | Denisovite | K14+x(Ca,Na,Mn,Fe)48[Si60O162]F16(Ox,OH4-x) · 2H2O |
| 9.HA.90 | Tiettaite | K4Na12Fe3+Si16O41(OH)4 · 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.
Internet Links for Rudenkoite
mindat.org URL:
https://www.mindat.org/min-26665.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Rudenkoite
Reference List:
Localities for Rudenkoite
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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).
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
|
Quick NavTopAbout RudenkoiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesStrunz-MindatOther InformationInternet Links References Localities Locality List
Emeldzhakskoe phlogopite deposit, Aldan, Sakha, Russia