Zakharovite
A valid IMA mineral species
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About Zakharovite
Evgeny E. Zakharov
Formula:
Na4Mn5Si10O24(OH)6 · 6H2O
Colour:
Yellowish to bright yellow, orange, greenish yellow
Lustre:
Vitreous, Waxy, Pearly, Dull
Hardness:
2
Specific Gravity:
2.58 - 2.64
Crystal System:
Trigonal
Name:
Named in honor of Evgeny Evgenievich Zakharov (Евгений Евгеньевич Захаров) (1902, Moscow, Russia - 1980, Moscow, Russia), Director of the Moscow Geological Exploration Institute, Russia.
See also Unnamed (Fe analogue of Zakharovite).
Visually resembles shafranovskite, UM1990-85-SiO:AlCaFeHMnNa, UM1990-89-SiO:CaFFeHKNa, UM1990-93-SiO:FeHNa, and UM1990-94-SiO:FFeHNaTi.
Visually resembles shafranovskite, UM1990-85-SiO:AlCaFeHMnNa, UM1990-89-SiO:CaFFeHKNa, UM1990-93-SiO:FeHNa, and UM1990-94-SiO:FFeHNaTi.
Unique Identifiers
Mindat ID:
4383
Long-form identifier:
mindat:1:1:4383:6
Similar Names
| Sakharovaite | A variety of Jamesonite | (Pb,Bi)4FeSb6S14 |
IMA Classification of Zakharovite
Approved
IMA Formula:
Na4Mn2+5Si10O24(OH)6·6H2O
Approval year:
1981
First published:
1982
Classification of Zakharovite
9.EE.65
9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
78.1.17.1
78 : Unclassified Silicates
1 : Miscellaneous
78 : Unclassified Silicates
1 : Miscellaneous
14.18.3
14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe
14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe
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 for Standard |
|---|---|---|
| Zak | 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 Zakharovite
Vitreous, Waxy, Pearly, Dull
Transparency:
Translucent, Opaque
Colour:
Yellowish to bright yellow, orange, greenish yellow
Hardness:
2 on Mohs scale
Cleavage:
Perfect
{0001}
{0001}
Fracture:
Conchoidal
Density:
2.58 - 2.64 g/cm3 (Measured) 2.67 g/cm3 (Calculated)
Optical Data of Zakharovite
Type:
Uniaxial (-)
RI values:
nω = 1.565(2) nε = 1.535(2)
Max. Birefringence:
δ = 0.030
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
Surface Relief:
Moderate
Chemistry of Zakharovite
Mindat Formula:
Na4Mn5Si10O24(OH)6 · 6H2O
Element Weights:
Common Impurities:
Fe,Mg,Ca,Sr,K
Crystallography of Zakharovite
Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Cell Parameters:
a = 14.58 Å, c = 37.71 Å
Ratio:
a:c = 1 : 2.586
Unit Cell V:
6,942.28 ų (Calculated from Unit Cell)
Z:
9
Comment:
Space Group: P31m or P3m1:
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 12.57 Å | (100) |
| 3.160 Å | (40) |
| 3.427 Å | (15) |
| 3.064 Å | (15) |
| 2.820 Å | (15) |
| 2.631 Å | (15) |
| 3.986 Å | (10) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Zakharovite
Co-Type Localities:
Place of Conservation of Type Material:
Geology Museum, Kola Branch, Academy of Sciences, Apatity, Russia, 5713/6.
Mining Institute, St. Petersburg, Russia, 1199.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 81688.
The Natural History Museum, London, England, 1994,38.
Mining Institute, St. Petersburg, Russia, 1199.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 81688.
The Natural History Museum, London, England, 1994,38.
Synonyms of Zakharovite
Other Language Names for Zakharovite
Dutch:Zakharoviet
German:Zakharovit
Simplified Chinese:札哈罗夫石
Spanish:Zakharovita
Traditional Chinese:札哈羅夫石
Varieties of Zakharovite
| Iron-bearing Zakharovite | Probably confused with the Unnamed (Fe analogue of Zakharovite). |
Common Associates
Associations Based on Photo Data:
| 28 photos of Zakharovite associated with Microcline | K(AlSi3O8) |
| 17 photos of Zakharovite associated with Aegirine | NaFe3+Si2O6 |
| 13 photos of Zakharovite associated with Nenadkevichite | (Na,◻)8Nb4(Si4O12)2(O,OH)4 · 8H2O |
| 13 photos of Zakharovite associated with Eudialyte Group | [N(1)N(2)N(3)N(4)N(5)]3[M(1.1)M(1.2)]3[M(2.1)M(2.2)M(2.3)]3-6[M(3)M(4)]Z3[Si24O72]Θ4X(1)X(2) |
| 12 photos of Zakharovite associated with Natrolite | Na2Al2Si3O10 · 2H2O |
| 11 photos of Zakharovite associated with Hydroterskite | Na2ZrSi6O12(OH)6 |
| 6 photos of Zakharovite associated with Phillipsite-K | K6(Si10Al6)O32 · 12H2O |
| 6 photos of Zakharovite associated with Makatite | Na2Si4O8(OH)2 · 4H2O |
| 5 photos of Zakharovite associated with Polylithionite | KLi2Al(Si4O10)(F,OH)2 |
| 5 photos of Zakharovite associated with Ussingite | Na2AlSi3O8OH |
Related Minerals - Strunz-mindat Grouping
| 9.EE. | Cairncrossite | Sr2Ca7-xNa2x(Si4O10)4(OH)2(H2O)15-x |
| 9.EE.05 | Bementite | Mn7Si6O15(OH)8 |
| 9.EE.07 | Innsbruckite | Mn33(Si2O5)14(OH)38 |
| 9.EE.10 | 'Brokenhillite' | Mn8Si6O15(OH)10 |
| 9.EE.10 | Mcgillite | (Mn,Fe)8Si6O15(OH)8Cl2 |
| 9.EE.10 | Friedelite | Mn2+8Si6O15(OH,Cl)10 |
| 9.EE.10 | Pyrosmalite-(Mn) | Mn2+8Si6O15(OH,Cl)10 |
| 9.EE.10 | Pyrosmalite-(Fe) | Fe2+8Si6O15(OH,Cl)10 |
| 9.EE.15 | Nelenite | Mn2+16As3+3Si12O36(OH)17 |
| 9.EE.15 | Schallerite | Mn2+16As3Si12O36(OH)17 |
| 9.EE.20 | Palygorskite | ◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O |
| 9.EE.20 | Yofortierite | Mn2+Mn2+2Mn2+2◻2Si8O20(OH)2(H2O)4 · 4H2O |
| 9.EE.20 | Windhoekite | Fe3+(Fe3+1.67◻0.33)Ca2◻2Si8O20(OH)2(H2O)4(OH)2 · 6H2O |
| 9.EE.20 | Windmountainite | ◻Fe3+2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O |
| 9.EE.20 | Ikorskyite | KMn3+(Si4O10) · 3H2O |
| 9.EE.20 | Tuperssuatsiaite | Fe3+Fe3+2(Na◻)◻2Si8O20(OH)2(H2O)4 · 2H2O |
| 9.EE.20 | 'Unnamed (Na-Ca-Fe-Silicate-Hydrate)' | NaCa(Fe2+,Al,Mn)5[Si8O19(OH)](OH)7 · 5H2O |
| 9.EE.25 | Sepiolite | Mg4(Si6O15)(OH)2 · 6H2O |
| 9.EE.25 | Loughlinite | Na2Mg3Si6O16 · 8H2O |
| 9.EE.25 | Falcondoite | (Ni,Mg)4Si6O15(OH)2 · 6H2O |
| 9.EE.25 | Kalifersite | (K,Na)5Fe3+7Si20O50(OH)6 · 12H2O |
| 9.EE.30 | Orlymanite | Ca4Mn3Si8O20(OH)6 · 2H2O |
| 9.EE.30 | Tungusite | Ca4Fe2Si6O15(OH)6 |
| 9.EE.30 | Gyrolite | NaCa16Si23AlO60(OH)8 · 14H2O |
| 9.EE.35 | Reyerite | (Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2O |
| 9.EE.35 | Kodamaite | Na3(Ca5Na)Si16O36(OH)4F2 · (14-x)H2O |
| 9.EE.35 | Truscottite | (Ca,Mn)14Si24O58(OH)8 · 2H2O |
| 9.EE.40 | Natrosilite | Na2Si2O5 |
| 9.EE.45 | Makatite | Na2Si4O8(OH)2 · 4H2O |
| 9.EE.50 | Varennesite | Na8Mn2Si10O25(OH,Cl)2 · 12H2O |
| 9.EE.55 | Raite | Mn2+Mn2+2Na2(◻1.75Ti0.25)Si8O20(OH)2(H2O)4 · Na(H2O)6 |
| 9.EE.60 | Intersilite | Na6Mn2+Ti[Si10O24(OH)](OH)3 · 4H2O |
| 9.EE.65 | Shafranovskite | Na3K2(Mn,Fe,Na)4[Si9(O,OH)27](OH)2 · nH2O |
| 9.EE.70 | Zeophyllite | Ca13Si10O28(OH)2F8 · 6H2O |
| 9.EE.75 | Minehillite | (K,Na)2-3Ca28Zn4Al4Si40O112(OH)16 |
| 9.EE.80 | Fedorite | (Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2O |
| 9.EE.80 | Martinite | (Na,◻,Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2 · 4H2O |
| 9.EE.80 | Ellingsenite | Na5Ca6Si18O38(OH)13 · 6H2O |
| 9.EE.85 | Lalondeite | (Na,Ca)6(Ca,Na)3Si16O38(F,OH)2 · 3H2O |
Other Information
Electrical:
Strongly electromagnetic
Notes:
Readily decomposed by cold 10% HCl
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 Zakharovite
mindat.org URL:
https://www.mindat.org/min-4383.html
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References for Zakharovite
Localities for Zakharovite
Showing 12 localities.
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.
Canada | |
| HORVÁTH et al. (2000) |
| Horváth et al. (1998) |
| Horváth et al. (1998) | |
Namibia | |
| [var: Iron-bearing Zakharovite] Rocks & Min. (2007) +1 other reference |
Russia | |
| Pekov (1998) |
| [World of Stones 95:5-6 |
| Pekov et al. (2004) | |
| [World of Stones 95:5-6 |
| Khomyakov et al. (1982) +2 other references |
| Pekov (2005) |
| Khomyakov et al. (1982) +2 other references |
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Palitra pegmatite, Karnasurt mine, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia