[Content and History] [Recent Issues] [Back Issues] [Subscriptions] [Contacts] See Also: [Diamond Crystals] [Excalibur Minerals] [Hudson Institute] [Minerals on CDROM] Mineral News was founded some twenty years ago and has developed a following of avid mineral collectors seeking timely information about new finds and other items of interest to the collector community. Articles are solicited from collector and scientific authors. General Tinticite InformationFe+++5(PO4,VO4)4•7(H2O) |
Molecular Weight = 772.21 gm |
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Vanadium 2.51 % V 4.48 % V2O5 |
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Iron 38.62 % Fe 55.22 % Fe2O3 |
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Phosphorus 13.08 % P 29.96 % P2O5 |
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Hydrogen 1.75 % H 15.63 % H2O |
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Oxygen 44.05 % O |
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______ ______ |
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100.00 % 105.28 % = TOTAL OXIDE |
Fe3+5.34(PO4)3.26(VO4)0.38•6.7(H2O) |
Valid Species (Pre-IMA) 1946 |
Tintic Standard mine, Tintic district, Utah Link to MinDat.org Location Data. |
Named for the locality. |
Tinticite + Pronunciation |
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Tinticite Crystallographya:b:c =0.7965:1:0.7644 |
a = 7.965, b = 9.999, c = 7.644, Z = 1; alpha = 103.94°, beta = 115.91°, gamma = 67.86° V = 492.28 Den(Calc)= 2.60 |
Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 |
By Intensity(I/Io): 3.307(1), 3.027(0.95), 3.9504(0.95), |
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Mouse
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| Physical Properties of TinticiteWhite, Light brown, Pale yellowish green. |
2.8 - 2.94, Average = 2.87 |
Cryptocrystalline - Occurs as crystals too small to distinguish with the naked eye. |
Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite). |
Nodular - Tuberose forms having irregular protuberances over the surface. |
2.5 - Finger Nail |
Earthy (Dull) |
white |
| Optical Properties of TinticiteCI meas= 0.126 (Poor) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.012 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2934,KPDmeas= 0.2597,KC= 0.2971 Ncalc = 1.75 - 1.87 Biaxial (?), a=1.745, g=1.7455, bire=0.0005 |
| Calculated Properties of TinticiteBulk Density (Electron Density)=2.50 gm/cc |
note: Specific Gravity of Tinticite =2.54 gm/cc. Fermion Index = 0.008464055 |
Boson Index = 0.991535945 PETinticite = 12.55 barns/electron |
U=PETinticite x rElectron Density= 31.37 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Tinticite is Not Radioactive | Tinticite Classification42.12.04.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen |
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(42.12)with miscellaneous formulae |
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(42.12.04)Tinticite Group |
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08.DC.32 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.D - Phosphates, etc |
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08.DC -With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1 |
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| Other Tinticite InformationNAME( Dana8) PHYS. PROP.(AmMin, v 86, p 379) OPTIC PROP.(Dana8) |
Links to other databases for Tinticite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Tinticite using: Visit our Advertisers for Tinticite : B & L Fine MineralsDan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Excalibur Minerals Exceptional Minerals Fabre Minerals John Betts Fine Minerals Lapis Mineral Journal Mineral News UV Tools Wrights Rock Shop Translate Tinticite Mineral Data : Ask about Tinticite here : Print or Cut-and-Paste your Tinticite Specimen Label here :
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