General Keystoneite Information![]() Mg0.5[Ni++Fe++(TeO3)3]•4.5(H2O) |
![]() Molecular Weight = 734.55 gm |
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Magnesium 1.65 % Mg 2.74 % MgO |
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Iron 7.60 % Fe 9.78 % FeO |
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Nickel 7.99 % Ni 10.17 % NiO |
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Tellurium 52.11 % Te 65.18 % TeO2 |
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Hydrogen 1.23 % H 11.04 % H2O |
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Oxygen 29.40 % O |
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______ ______ |
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100.00 % 98.91 % = TOTAL OXIDE |
![]() Mg0.5NiFe2+(TeO3)3•4.5(H2O) |
![]() Secondary mineral in telluride-bearing ores. |
![]() Approved IMA 1988 |
![]() Keystone mine, Magnolia distict, Boulder County, Colorado, USA. Link to MinDat.org Location Data. |
![]() Named for the locality |
![]() Keystoneite + Pronunciation |
![]() | | Keystoneite Image
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Keystoneite Crystallography![]() a:c = 1:0.8141 |
![]() a = 9.344, c = 7.607, Z = 2; V = 575.19 Den(Calc)= 4.24 |
![]() Hexagonal - DipyramidalH-M Symbol (6/m) Space Group: P 63/m |
![]() By Intensity(I/Io): 2.77(1), 8.12(0.9), 4.05(0.8),1.72(0.6), 1.498(0.5), 2.84(0.5), 2.95(0.5), 3.81(0.4), |
| Physical Properties of Keystoneite![]() None |
![]() Golden yellow, Orange yellow. |
![]() 4.4 |
![]() Acicular - Occurs as needle-like crystals. |
![]() Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) |
![]() Adamantine |
| Optical Properties of Keystoneite![]() CI meas= 0.006 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.032 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.217,KPDmeas= 0.2091,KC= 0.2103 Ncalc = 1.89 - 1.93 ![]() Uniaxial (+), w=1.99, e=1.85, bire=0.1400. |
| Calculated Properties of Keystoneite![]() Bulk Density (Electron Density)=3.99 gm/cc |
note: Specific Gravity of Keystoneite =4.40 gm/cc. ![]() Fermion Index = 0.04 |
Boson Index = 0.96 ![]() PEKeystoneite = 182.30 barns/electron |
U=PEKeystoneite x rElectron Density= 727.27 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Keystoneite is Not Radioactive | Keystoneite Classification![]() 34.03.02.03 (34)Selenites - Tellurites - Sulfites |
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(34.03)Dana Type |
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(34.03.02)Zemannite Group |
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![]() 04.JM.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.J - Arsenites, Antimonites, Bismuthites, Sulfites, |
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04.JM -Tellurites without additional anions, with H2O |
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| Other Keystoneite Information![]() NAME( Dana8) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(Dana8) |
![]() Links to other databases for Keystoneite : |
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 Search for Keystoneite using: Visit our Advertisers for Keystoneite : A Bijoux Google Search for KeystoneiteAdam's Minerals Google Search for Keystoneite Cape Minerals Google Search for Keystoneite Dakota Matrix Minerals Google Search for Keystoneite Excalibur Mineral Corp. Google Search for Keystoneite Exceptional Minerals Google Search for Keystoneite John Betts Fine Minerals Search for Keystoneite McDougall Minerals Google Search for Keystoneite Mineral News Website Link Rock and Mineral Shows Google Search for Keystoneite Weinrich Minerals, Inc. Google Search for Keystoneite Ask about Keystoneite here : Print or Cut-and-Paste your Keystoneite Specimen Label here :
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