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Tinaksite Mineral Data + |
General Tinaksite Information |
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| K2Na(Ca,Mn++)2(Ti,Fe)O[Si7O18(OH)] | |||
| Molecular Weight = 751.73 gm | |||
| Potassium 10.40 % K 12.53 % K2O | |||
| Sodium 3.06 % Na 4.12 % Na2O | |||
| Calcium 9.33 % Ca 13.05 % CaO | |||
| Titanium 5.41 % Ti 9.03 % TiO2 | |||
| Manganese 1.83 % Mn 2.36 % MnO | |||
| Iron 1.11 % Fe 1.43 % FeO | |||
| Silicon 26.15 % Si 55.95 % SiO2 | |||
| Hydrogen 0.13 % H 1.20 % H2O | |||
| Oxygen 42.57 % O | |||
| ______ ______ | |||
| 100.00 % 99.68 % = TOTAL OXIDE | |||
| K2NaCa1.75Mn2+0.25Ti0.85Fe2+0.15Si7O19(OH) | |||
| K-feldspar metasomatites in contact with limestone. | |||
| Approved IMA 1965 | |||
| Murun alkalic massif, near Olekminsk, Yakutia, Russia. Link to MinDat.org Location Data. | |||
| Named fro the symbols of some of its component elements (Ti, Na, K). | |||
| ICSD 10502 | |||
| PDF 18-1382 | |||
Tinaksite Image | |||
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Tinaksite Crystallography |
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| a:b:c =0.8504:1:0.5792 | |||
| a = 10.35, b = 12.17, c = 7.05, Z = 2; alpha = 91°, beta = 99.333°, gamma = 92.5° V = 875.29 Den(Calc)= 2.85 | |||
| TriclinicSpace Group: P1,P 1 | |||
| By Intensity(I/Io): 3.3(1), 3.25(0.8), 2.331(0.56), | |||
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Physical Properties of Tinaksite |
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| [010] Perfect, [110] Indistinct | |||
| Pink, Pale yellow, Light brown. | |||
| 2.82 | |||
| Transparent to Translucent | |||
| Fibrous - Crystals made up of fibers. | |||
| Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). | |||
| Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) | |||
| 6 - Orthoclase | |||
| Vitreous (Glassy) | |||
| white | |||
Optical Properties of Tinaksite |
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| CI meas= 0.004 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.014 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2199,KPDmeas= 0.2222,KC= 0.2231 |
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| Biaxial (+), a=1.593, b=1.621, g=1.666, bire=0.0730 | |||
| colorless. | |||
| colorless. | |||
| pale orange yellow. | |||
Calculated Properties of Tinaksite |
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relectron=2.79 gm/cc |
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| Fermion Index = 0.01979 Boson Index = 0.98021 |
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PETinaksite = 4.91 barns/electron |
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| GRapi = 148.49 (Gamma Ray American Petroleum Institute Units) Estimated Radioactivity from Tinaksite |
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Tinaksite Classification |
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| 67.2.1.1 (67)Inosilicate Unbranched Chains with W>2 | |||
| (67.2)with W=5 | |||
| (67.2.1)Tinaksite group | |||
| VIII/F.22-30 VIII - Silicates | |||
| VIII/F - Inosilicates (chain and band) Triplet chains [Si6O15/17]6-/10- and modified triplet bands | |||
| VIII/F.22 - Zorite - Tinaksite series | |||
Other Tinaksite Information |
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| NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) | |||
| Links to other databases for Tinaksite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Tinaksite using: Visit our Advertisers for Tinaksite : AA Mineral SpecimensB & L Fine Minerals Crystal Vaults Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Tinaksite Mineral Data : Ask about Tinaksite here : Print or Cut-and-Paste your Tinaksite Specimen Label here :
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