[New Updates] [Gallery 1] [Gallery 2] [Gallery 3] [Rock Shop Gallery] Serving the mineral collector and educator community since 1970 Over 900,000 mineral specimens in stock New minerals acquired weekly - Wright's Rock Shop General Golyshevite Information(Na,Ca)10Ca9(Fe+++,Fe++)2Zr3NbSi25O72(CO3)(OH)3•H2O |
Molecular Weight = 2,925.34 gm |
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Potassium 0.40 % K 0.48 % K2O |
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Sodium 7.09 % Na 9.56 % Na2O |
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Calcium 8.70 % Ca 12.17 % CaO |
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Lanthanum 0.14 % La 0.17 % La2O3 |
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Cerium 0.24 % Ce 0.28 % Ce2O3 |
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Zirconium 9.26 % Zr 12.51 % ZrO2 |
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Manganese 0.54 % Mn 0.70 % MnO |
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Niobium 1.91 % Nb 2.73 % Nb2O5 |
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Aluminum 0.07 % Al 0.14 % Al2O3 |
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Iron 4.18 % Fe 1.23 % FeO / 4.61 % Fe2O3 |
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Silicon 23.68 % Si 50.65 % SiO2 |
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Hydrogen 0.15 % H 1.35 % H2O |
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Carbon 0.43 % C 1.58 % CO2 |
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Chlorine 0.25 % Cl 0.25 % Cl |
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- %
Cl -0.06 % -O=Cl2 |
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Oxygen 42.95 % O |
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______ ______ |
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100.00 % 98.36 % = TOTAL OXIDE |
Na9.02Ca0.43K0.3Ca5.92Ce0.05La0.03Fe3+1.69Fe2+0.5Mn2+0.29Zr2.97Si0.66Nb0.6Al0.08
Si24O72(OH)2.37(CO3)1.05Cl0.21·1.01(H2O) |
From calcium-rich agpaitic pegmatites. CO3-dominant analog of feklichevite. |
Approved IMA 2004 (Dana # Added) |
Northern face of the Mica quarry in pegmatite no. 10 of the Kovdor massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
Named for Vladimir Mikhailovich Golyshev (1943-2000), crystallographer from the Mordvinian State University, Saransk, Russia. |
IMA2004-039a |
| | Golyshevite Image
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Golyshevite Crystallographya:c = 1:2.10694 |
a = 14.231, c = 29.984, Z = 3; V = 5,258.85 Den(Calc)= 2.77 |
Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: R 3m |
By Intensity(I/Io): 2.848(1)(404 ), 2.971(0.78)(315,135 4.3(0.53)(205 ),2.055(0.51)(3.2.10,2.3.103.2(0.46)(208 )2.597(0.43)(143 |
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| Physical Properties of Golyshevite{001} Imperfect |
Dark reddish brown. |
2.89 |
Transparent |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. |
5.5 - Knife Blade |
Vitreous (Glassy) |
white |
| Optical Properties of GolysheviteCI meas= -0.019 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.063 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2249,KPDmeas= 0.2156,KC= 0.2116 Ncalc = 1.59 - 1.61 Uniaxial (-), e=1.618, w=1.628, bire=0.0100. |
| Calculated Properties of GolysheviteBulk Density (Electron Density)=2.83 gm/cc |
note: Specific Gravity of Golyshevite =2.89 gm/cc. Fermion Index = 0.02 |
Boson Index = 0.98 PEGolyshevite = 20.23 barns/electron |
U=PEGolyshevite x relectron= 57.27 barns/cc. |
GRapi = 404.78 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Golyshevite | Golyshevite Classification64.01.01.19 (64)Cyclosilicates |
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(64.01)Cyclosilicate Rings with Other Anions and Insular Silicate Groups with mixed ring types |
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(64.01.01)Eudialyte Group |
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09.CO.10 09 - SILICATES (Germanates) |
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09.C - Cyclosilicates |
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09.CO -[Si9O27]18- 9-membered rings |
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| Other Golyshevite InformationNAME( AmMin, v92:1539) PHYS. PROP.(AmMin, v92:1539) OPTIC PROP.(AmMin, v92:1539) |
Links to other databases for Golyshevite : |
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 10 - Ruff.Info Search for Golyshevite using: Visit our Advertisers for Golyshevite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Diamond Dan Publications e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Golyshevite Mineral Data : Ask about Golyshevite here : Print or Cut-and-Paste your Golyshevite Specimen Label here :
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