[Fine Minerals] [What's New] [Mineral Galleries] [My Collection] [Mineral Auctions] Dan Weinrich Fine Minerals Full-time professional mineral dealer with over 31 years experience in mineral collecting And 15 years selling mineral specimens on the internet and at major mineral shows General Takovite InformationNi6Al2(OH)16(CO3,OH)•4(H2O) |
Molecular Weight = 799.54 gm |
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Aluminum 6.75 % Al 12.75 % Al2O3 |
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Nickel 44.04 % Ni 56.05 % NiO |
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Hydrogen 3.06 % H 27.32 % H2O |
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Carbon 1.13 % C 4.13 % CO2 |
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Oxygen 45.02 % O |
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100.00 % 100.25 % = TOTAL OXIDE |
Ni6Al2(OH)16(CO3)0.75(OH)0.25•4(H2O) |
Metamorphosed serpentinite. |
Valid Species (Pre-IMA) 1957 |
Takovo, Serbia. Link to MinDat.org Location Data. |
Named for the locality. |
Takovite |
Eardleyite-Zn |
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Takovite Crystallographya:c = 1:7.47682 |
a = 6.04, c = 45.16, Z = 3; V = 1,426.79 Den(Calc)= 2.79 |
Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m |
By Intensity(I/Io): 7.57(1), 1.917(0.9), 2.552(0.9),2.26(0.8), 3.77(0.8), 1.708(0.7), 2.38(0.5), 2.6(0.4), |
| Physical Properties of TakoviteBlue green, Yellow green. |
2.798 |
Transparent |
Massive - Uniformly indistinguishable crystals forming large masses. |
2 - Gypsum |
Pearly |
| Optical Properties of TakoviteCI meas= 0.051 (Good) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.049 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2156,KPDmeas= 0.215,KC= 0.2266 Ncalc = 1.63 Uniaxial (-), e=1.598, w=1.605, bire=0.0070. |
| Calculated Properties of TakoviteBulk Density (Electron Density)=2.81 gm/cc |
note: Specific Gravity of Takovite =2.79 gm/cc. Fermion Index = 0.0053214732 |
Boson Index = 0.9946785268 PETakovite = 17.27 barns/electron |
U=PETakovite x rElectron Density= 48.54 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Takovite is Not Radioactive | Takovite Classification16b.06.03.02 (16b)Carbonates - Hydroxyl or Halogen |
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(16b.06)Dana Type |
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(16b.06.03)Sjorgrenite-Hydrotalcite Group (Hydrotalcite Subgroup:Rhombohedral) |
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05.DA.50 05 - CARBONATES (NITRATES) |
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05.D - Carbonates with Additional Anions, with H2O |
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05.DA -With medium-sized cations |
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| Other Takovite InformationNAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) |
Links to other databases for Takovite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - MinMax(Deutsch) 11 - MinMax(English) 12 - Mineralienatlas (Deutsch) 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Takovite using: Visit our Advertisers for Takovite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Desert Winds Gems and Minerals 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 Takovite Mineral Data : Ask about Takovite here : Print or Cut-and-Paste your Takovite Specimen Label here :
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