• Donathite Mineral Data

    webmineral.com/data/Donathite.shtml PE Donathite = 18.79 barns/electron U=PE Donathite x rElectron Density= 114.07 barns/cc. Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units) Donathite is Not Radioactive : Donathite Classification: Dana Class: 04.00.00.00 Oxide Minerals
  • Donathite: Mineral information, data and localities.

    www.mindat.org/min-1307.html Donath (1931) reported a zinc-rich chromite from Ramberget and Værnesfjell, Nordland, Norway. Later, Seeliger and Mücke (I969), on the basis of the original analyses and XRD analyses found that this was not a Zn-rich chromite, but a tetragonal mineral, and described this as a new mineral which was named Donathite.
  • (PDF) Donathite discredited: A mixture of two spinels

    www.researchgate.net/.../236669264_Donathite_discredited_A_mixture_of_two_spi... Donathite is a mixture of two phases, and its discreditation as a valid mineral species has been approved by the International Mineralogical Association Commission on New Minerals and Mineral ...
  • Donathite Mineral Data - Mineralogy Database

    webmin.mindat.org/data/Donathite.shtml General Donathite Information : Chemical Formula: (Fe++,Mg)(Cr,Fe+++)2O4 : Composition: Molecular Weight = 222.61 gm Magnesium 1.09 % Mg 1.81 % MgO: Chromium 35.04 % Cr 51.21 % Cr 2 O 3: Iron 35.12 % Fe 29.05 % FeO / 17.93 % Fe 2 O 3: Oxygen 28.75 % O: 100.00 % 100.00 % = TOTAL OXIDE
  • (PDF) Zinc-Bearing Chromite (donathite?) from Norway: A ...

    www.researchgate.net/.../249848688_Zinc-Bearing_Chromite_donathite_from_Norwa... fraction pattern similar to donathite, but with significant differences suggesting a lattice that is not tetragonal (Table II). There is a tendency for the 44o peak of one of the cubic chromites
  • CiteSeerX — Zinc-bearing chromite (donathite?) from Norway ...

    citeseerx.ist.psu.edu/viewdoc/summary CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): SUMMARY. Electron-microprobe analyses of chromites from the Helgeland area, Norway, show that they are all low in zinc. Many chromites show physical properties identical with donathite (anisotropism; polar magnetism) but have cubic lattices. One exception, from Rodoya, shows an unusual deviation from cubic symmetry ...
  • Donathite Image - Mineral

    webmineral.com/specimens/picshow.php Black granular donathite on iron. Hestmondo Island, Nordland, Norway.
  • Donathite from Ramnberget, Hestmona Island, Rødøy ...

    www.mindat.org/locentry-231390.html Click here to view Donathite data: Locality Data: Click here to view Ramnberget, Hestmona Island, Rødøy, Nordland, Norway . Mineral and/or Locality . Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
  • Oxide mineral - Wikipedia

    en.wikipedia.org/wiki/Oxide_mineral The oxide mineral class includes those minerals in which the oxide anion (O 2−) is bonded to one or more metal alloys. The hydroxide-bearing minerals are typically included in the oxide class.The minerals with complex anion groups such as the silicates, sulfates, carbonates and phosphates are classed separately.. Simple oxides: X 2 O and XO . Cuprite Cu 2 O; Ice H 2 O ...
  • ATHENA MINERAL: Mineral Data; Pierre Perroud

    athena.unige.ch/bin/minfich.cgi Mineral: DONATHITE (?) Formula: (Fe 2+,Mg)(Cr,Fe 3+) 2 O 4: Crystal System: Quadratic (Tetragonal) Strunz Nr: 4/B.05-30: References: NJMM (1969), 49; NJMM (1997), 163 ...