General Alsakharovite-Zn Information
|
Chemical Formula: |
NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O) |
Composition: |
Molecular Weight = 1,240.78 gm |
| |
Potassium 1.99 % K 2.39 % K2O |
| |
Barium 3.21 % Ba 3.58 % BaO |
| |
Sodium 1.50 % Na 2.02 % Na2O |
| |
Strontium 3.74 % Sr 4.43 % SrO |
| |
Calcium 1.03 % Ca 1.45 % CaO |
| |
Titanium 11.19 % Ti 18.67 % TiO2 |
| |
Niobium 8.69 % Nb 12.43 % Nb2O5 |
| |
Zinc 4.01 % Zn 4.99 % ZnO |
| |
Iron 0.18 % Fe 0.23 % FeO |
| |
Silicon 18.11 % Si 38.74 % SiO2 |
| |
Hydrogen 1.23 % H 10.96 % H2O |
| |
Oxygen 45.13 % O |
| |
______ ______ |
| |
100.00 % 99.88 % = TOTAL OXIDE |
Empirical Formula: |
Na0.68Ca0.32Sr0.53Na0.13K0.63Ba0.29Zn0.76Fe2+0.04Ti2.9Nb1.16Si8O24O2.9(OH)1.1·7(H2O) |
Environment: |
Hydrothemal mineral in cavities of a eudialyte-aegirine-feldspar pegmatite. Labuntsovite group, gutkovaite subgroup; structure determined. |
IMA Status: |
Approved IMA 2003 (Dana # Added) |
Locality: |
Lepkhe-Nelm Mountain, Lovozero alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
Name Origin: |
Named for Aleksey S. Sakharov (1910-1996), Russian geologist who studied the Lovozero alkaline massif. |
Synonym: |
IMA2002-003 |
| |
Alsakharovite-Zn Image |
Images:
|
|
Alsakharovite-Zn Crystallography
|
Axial Ratios: |
a:b:c =1.0394:1:0.562 |
Cell Dimensions: |
a = 14.495, b = 13.945, c = 7.838, Z = 2; beta = 117.75° V = 1,402.10 Den(Calc)= 2.94 |
Crystal System: |
Monoclinic - DomaticH-M Symbol (m) Space Group: Cm |
X Ray Diffraction: |
By Intensity(I/Io): 6.96(1)(020,001), 3.11(0.9)(041,022,240), 3.21(0.8)(402,421,400),
1.7(0.4)(463,444,461,442.5(0.4)(441,403), 2.6(0.35)(15 |
| |
Physical Properties of Alsakharovite-Zn
|
Cleavage: |
None |
Color: |
White, Pale brown, Colorless. |
Density: |
2.9 |
Diaphaniety: |
Translucent to transparent |
Fracture: |
Brittle - Uneven - Very brittle fracture producing uneven fragments. |
Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
Habit: |
Tabular - Form dimensions are thin in one direction. |
Hardness: |
5 - Apatite |
Luster: |
Vitreous (Glassy) |
Streak: |
white |
| |
Optical Properties of Alsakharovite-Zn
|
Gladstone-Dale: |
CI meas= 0.031 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.044 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2442,KPDmeas= 0.2476,KC= 0.2554 |
Optical Data: |
Biaxial (+), a=1.68, b=1.687, g=1.787, bire=0.1070, 2V(Calc)=32, 2V(Meas)=25. Dispersion dispersion not observed. |
| |
Calculated Properties of Alsakharovite-Zn
|
Electron Density: |
relectron=2.83 gm/cc note: rAlsakharovite-Zn =2.90 gm/cc. |
Fermion Index |
Fermion Index = 0.03318 Boson Index = 0.96682 |
Photoelectric: |
PEAlsakharovite-Zn = 34.73 barns/electron U=PEAlsakharovite-Zn x relectron= 98.39 barns/cc. |
Radioactivity: |
GRapi = 28.00 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Alsakharovite-Zn - barely detectable
|
| |
Alsakharovite-Zn Classification
|
Dana Class: |
60.1.3f.2 (60)Cyclosilicate Four-Membered Rings |
| |
(60.1)as Titanosilicates |
| |
(60.1.3f)Labuntsovite Group (Gutkovaite subgroup Monoclinic [Cm]) |
| |
60.1.3f.1 Gutkovaite-Mn! CaK2Mn(Ti,Nb)4(Si4O12)2(O,OH)4·5(H2O) Cm m |
| |
60.1.3f.2 Alsakharovite-Zn ! NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O) Cm m |
| |
60.1.3f.3 Neskevaaraite-Fe! NaK3Fe(Ti,Nb)4(Si4O12)2(O,OH)4·6(H2O) Cm m |
Strunz Class: |
VIII/E.07-210 VIII - Silicates |
| |
VIII/E - Cyklosilicates, quadruplet rings [Si4O11]8- |
| |
VIII/E.07 - Labuntsovite Group |
| |
VIII/E.07-10 Korobitsynite! Na3(Ti,Nb)2[Si4O12](OH,O)2·3-4(H2O) Pbam 2/m 2/m 2/m |
| |
VIII/E.07-20 Nenadkevichite (Na,Ca,K)(Nb,Ti)Si2O6(O,OH)·2(H2O) Pbam 2/m 2/m 2/m |
| |
VIII/E.07-30* Strontiochevkinite (Sr,REE)4Fe(Ti,Zr)2Ti2Si4O22 C 2/a 2/m |
| |
VIII/E.07-30 Tsepinite-Na! (Na,H3O,K,Sr,Ba)2(Ti,Nb)2[Si4O12](OH,O)2·3(H2O) Cm m |
| |
VIII/E.07-32 Tsepinite-K! (K,Ba,Na)2(Ti,Nb)2(Si4O12)(OH,O)2·3(H2O) Cm m |
| |
VIII/E.07-33 Tsepinite-Ca! (Ca,K,Na,[])2(Ti,Nb)2(Si4O12)(OH,O)2·4(H2O) C 2/m 2/m |
| |
VIII/E.07-34 Paratsepinite-Ba! (Ba,Na,K)2-x(Ti,Nb)2(Si4O12)(OH,O)2·4(H2O) C 2/m 2/m |
| |
VIII/E.07-40 Vuoriyarvite-K! (K,Na)2(Nb,Ti)2Si4O12(O,OH)2·4(H2O) Cm m |
| |
VIII/E.07-50 Clinophosinaite! Na3CaPSiO7 P 2/c 2/m |
| |
VIII/E.07-50* Kuzmenkoite-Zn! K2Zn(Ti,Nb)4(Si4O12)2(OH,O)4·6-8(H2O) Cm m |
| |
VIII/E.07-60* Kuzmenkoite-Mn! (K,Na)2(Mn,Fe)(Ti,Nb)4[Si4O12]2(OH)4·5(H2O) C 2/m 2/m |
| |
VIII/E.07-60 Phosinaite-(Ce)! Na13Ca2Ce[Si4O12](PO4)4 P 22121 2 2 2 |
| |
VIII/E.07-70 Gjerdingenite-Fe! K2[(H2O)2(Fe,Mn)][(Nb,Ti)4(Si4O12)2(O,OH)4]·4(H2O) C 2/m 2/m |
| |
VIII/E.07-80 Gjerdingenite-Mn! (K,Na)2(Mn,Fe)(Nb,Ti)4(Si4O12)2(O,OH)4·6(H2O) C 2/m 2/m |
| |
VIII/E.07-90 Karupmollerite-Ca! (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4·7(H2O) C 2/m 2/m |
| |
VIII/E.07-100 Lemmleinite-K! NaK2(Ti,Nb)2Si4O12(O,OH)2·2(H2O) C 2/m 2/m |
| |
VIII/E.07-110 Lemmleinite-Ba! Na2K2Ba1-xTi4(Si4O12)2(O,OH)4·5(H2O) C 2/m 2/m |
| |
VIII/E.07-130 Paralabuntsovite-Mg! Na8K8Mg8Ti16(Si4O12)8(O,OH)16·n(H2O) I2/m 2/m |
| |
VIII/E.07-140 Labuntsovite-Mg! Na4K4(Ba,K)(Mg,Fe)1xTi8(Si4O12)4(O,OH)8·10(H2O) C 2/m 2/m |
| |
VIII/E.07-150 Labuntsovite-Fe! Na4K4(Ba,K)2(Fe,Mg,Mn)1xTi8(Si4O12)4(O,OH)8·10(H2O) C 2/m 2/m |
| |
VIII/E.07-155 Labuntsovite-Mn Na4K4(Ba,K)(Mn,Fe)1x(Ti,Nb)8[Si4O12]4(O,OH)8·n(H2O),n=10-12 I2/m 2/m |
| |
VIII/E.07-170 Parakuzmenkoite-Fe! (K,Ba)2Fe(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O) C 2/m 2/m |
| |
VIII/E.07-180 Organovaite-Zn! K2Zn(Nb,Ti)4(Si4O12)2(O,OH)4·6(H2O) C 2/m 2/m |
| |
VIII/E.07-190 Organovaite-Mn! K2Mn(Nb,Ti)4(Si4O12)2(O,OH)4·6(H2O) Cm m |
| |
VIII/E.07-200 Gutkovaite-Mn! CaK2Mn(Ti,Nb)4(Si4O12)2(O,OH)4·5(H2O) Cm m |
| |
VIII/E.07-205 Neskevaaraite-Fe! NaK3Fe(Ti,Nb)4(Si4O12)2(O,OH)4·6(H2O) Cm m |
| |
VIII/E.07-210 Alsakharovite-Zn NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O) Cm m |
| |
VIII/E.07-220 Lepkhenelmite-Zn! Ba2Zn(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O) Cm m |
| |
Other Alsakharovite-Zn Information
|
References: |
NAME( CanMin, 41:1309) PHYS. PROP.(CanMin, 41:1309) OPTIC PROP.(CanMin, 41:1309) |
See Also: |
Links to other databases for Alsakharovite-Zn :
1 -Am. Min. Crystal Structure Database
2 -Athena
3 -Google Images
4 -Google Scholar
5 -MinDAT
6 -MinMax(Deutsch)
7 -MinMax(English)
8 -Mineralienatlas (Deutsch)
9 -QUT Mineral Atlas
Search for Alsakharovite-Zn using:
[ALTAVISTA]
[AOL]
[About.com]
[All-The-Web]
[HotBot]
[Ixquick]
[LookSmart]
[MAMMA]
[MSN.COM]
[Netscape]
[Teoma]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Alsakharovite-Zn :
AA Mineral Specimens
A-Rocks Auction
Adams Minerals
B and L Minerals
Dakota Matrix
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Minernet.it
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop
Translate Alsakharovite-Zn Mineral Data :
Ask about Alsakharovite-Zn here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in
Espaņol
Print or Cut-and-Paste your Alsakharovite-Zn Specimen Label here :
|
Alsakharovite-Zn
NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O)
Dana No: 60.1.3f.2 Strunz No: VIII/E.07-210
Locality:
Notes:
|
|
| |
| |
|
| |