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Parakuzmenkoite-Fe Mineral Data |
General Parakuzmenkoite-Fe Information |
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(K,Ba)2Fe(Ti,Nb)4(Si4O12)2(O,OH)4•7(H2O) | |
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Molecular Weight = 2,567.15 gm | |
Potassium 2.44 % K 2.94 % K2O | ||
Barium 8.02 % Ba 8.96 % BaO | ||
Sodium 0.36 % Na 0.48 % Na2O | ||
Strontium 0.34 % Sr 0.40 % SrO | ||
Calcium 0.16 % Ca 0.22 % CaO | ||
Titanium 8.21 % Ti 13.69 % TiO2 | ||
Manganese 1.50 % Mn 1.93 % MnO | ||
Niobium 12.30 % Nb 17.60 % Nb2O5 | ||
Zinc 0.25 % Zn 0.32 % ZnO | ||
Iron 3.92 % Fe 5.60 % Fe2O3 | ||
Silicon 17.50 % Si 37.45 % SiO2 | ||
Hydrogen 1.19 % H 10.60 % H2O | ||
Oxygen 43.81 % O | ||
______ ______ | ||
100.00 % 100.19 % = TOTAL OXIDE | ||
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K1.6Na0.4Ba1.5Sr0.1Ca0.1Zn0.1Fe3+1.6Mn2+0.7Ti4.4Nb3.4Fe3+0.2(Si4O12)4 O6.4(OH)1.6�14.3(H2O) | |
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Alkaline pegmatite. Labuntsovite group; structure. | |
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Approved IMA 2002 (Dana # Added) | |
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Lovozero massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. | |
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Named as the Fe-dominant analog of kuzmenkoite-Mn with a doubled c-axis. | |
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IMA2001-007 | |
Parakuzmenkoite-Fe Crystallography |
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a:b:c =1.0381:1:1.1229 | |
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a = 14.41, b = 13.88, c = 15.587, Z = 2; beta = 117.53° V = 2,764.56 Den(Calc)= 3.08 | |
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Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m | |
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By Intensity(I/Io): 3.09(1)(042,024), 3.19(1)(422,400), 6.91(1)(020,002),2.58(0.9)(480,484,4.2.11.422(0.8), | |
Physical Properties of Parakuzmenkoite-Fe |
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{???} Imperfect | |
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Orange, Reddish orange. | |
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3 | |
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Translucent | |
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Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). | |
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5 - Apatite | |
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Vitreous (Glassy) | |
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white | |
Optical Properties of Parakuzmenkoite-Fe |
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CI meas= 0.053 (Good) - where the CI = (1-KPDmeas/KC) CI calc= 0.078 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.236,KPDmeas= 0.2423,KC= 0.256 Ncalc = 1.77 - 1.79 |
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Biaxial (+), a=1.687, b=1.689, g=1.805, bire=0.1180 | |
Calculated Properties of Parakuzmenkoite-Fe |
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Bulk Density (Electron Density)=2.91 gm/cc note: Specific Gravity of Parakuzmenkoite-Fe =3.00 gm/cc. |
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Fermion Index = 0.03 Boson Index = 0.97 |
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PEParakuzmenkoite-Fe = 55.51 barns/electron U=PEParakuzmenkoite-Fe x relectron= 161.49 barns/cc. |
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GRapi = 34.08 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Parakuzmenkoite-Fe |
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Parakuzmenkoite-Fe Classification |
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60.01.03h.03 (60)Cyclosilicate Four-Membered Rings | |
(60.01)as Titanosilicates | ||
(60.01.03h)Labuntsovite Group (Organovaite subgroup Monoclinic [C2/m]) | ||
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09.CE.30g 09 - SILICATES (Germanates) | |
09.C - Cyclosilicates | ||
09.CE -[Si4O12]8- 4-membered single rings (vierer-Einfachringe), | ||
Other Parakuzmenkoite-Fe Information |
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NAME( AmMin, v 87, p 1735) PHYS. PROP.(AmMin, v 87, p 1735) OPTIC PROP.(AmMin, v 87, p 1735) | |
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Links to other databases for Parakuzmenkoite-Fe : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - MinDAT 7 - Mineralienatlas (Deutsch) 8 - Online Mineral Museum 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Parakuzmenkoite-Fe using: Visit our Advertisers for Parakuzmenkoite-Fe : Ask about Parakuzmenkoite-Fe here : Print or Cut-and-Paste your Parakuzmenkoite-Fe Specimen Label here :
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