• Davidite-(Ce): Mineral information, data and localities.

    www.mindat.org/min-1233.html Unique combination of elements. Ce analogue of davidite-(La). Y analogue of UM2006-09-O:CaFeMnREESrTiZr. Much rarer than its La-analogue Davidite-(La).
  • Davidite-(Ce) Mineral Data

    webmineral.com/data/Davidite-(Ce).shtml Davidite-(Ce) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram. Greater than 70 Bq / gram. Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 10 cm box) 116.71 ± 29.18 grams of pure Davidite-(Ce) .
  • Davidite - Wikipedia

    en.wikipedia.org/wiki/Davidite Davidite is a rare earth oxide mineral with chemical end members La and Ce.It exists in two forms: Davidite-(La) (La,Ce,Ca)(Y,U)(Ti,Fe 3+) 20 O 38 discovered at Radium Hill mine, South Australia in 1906 and named by Douglas Mawson for Australian geologist Tannatt William Edgeworth David (1858-1934).; Davidite-(Ce) (Ce,La)(Y,U)(Ti,Fe 3+) 20 O 38 first described in 1960 from Vemork, Iveland, Norway.
  • Davidite-(La) Mineral Data

    webmineral.com/data/Davidite-(La).shtml Concentration of Davidite-(La) per GRapi unit = 3.82 (PPM) Davidite-(La) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram. Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 10 cm box) 116.31 ± 29.08 grams of pure Davidite-(La) .
  • Davidite: Mineral information, data and localities.

    www.mindat.org/min-1232.html [Davidite-(Ce)] Neumann, H. & Sverdrup, T.L.(1960): Contributions to the mineralogy of Norway No. 8. Davidite from Tuftan, Iveland. Norsk Geologisk Tidsskrift 40: 277-288 + Levinson (1966). ⓘ Frikstad 07 Feldspar Quarry (Slobrekka) [Davidite-(Ce)] Neumann (1985) : Norges mineraler. Norges geologiske undersøkelse Skrifter 68, p. 66-67
  • Davidite-(Ce) - RRUFF Database: Raman, X-ray, Infrared ...

    rruff.info/Davidite-(Ce) Name: Davidite-(Ce) RRUFF ID: R120009 Ideal Chemistry: Ce(Y,U)Fe 2 (Ti,Fe,Cr,V) 18 (O,OH,F) 38 Locality: Mount Kaskasnyunchorr, Khibiny Massif, Kola Peninsula, Russia Source: Marcus Origlieri Owner: RRUFF Description: Black rhombohedral grains associated with red rutile and colorless orthoclase Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
  • Davidite | Article about davidite by The Free Dictionary

    encyclopedia2.thefreedictionary.com/davidite These are thumbnail-size loose crystals of the complex rare-earth oxide davidite (whether davidite-(Ce) or davidite-(La) or davidite-(Y) no one seems to know), hailing from what is said to be a new prospect in a rare earth-bearing pegmatite at Bektau-Ata, Karaganda, Kazakhstan.
  • U 2+ 3+ (O OH) - Handbook of Mineralogy

    handbookofmineralogy.org/pdfs/davidite-(Ce).pdf Davidite-(Ce) (Ce,La)(Y,U,Fe2+)(Ti,Fe3+)20(O,OH)38 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Hexagonal; metamict. Point Group: [3 or 3] [by analogy to davidite-(La)]. In elongated masses, to 20 cm, with rough semi-linear outlines.
  • Davidite-(La) (La Ce)(Y U)(Ti Fe3+ OH) 20 38

    www.handbookofmineralogy.com/pdfs/davidite-(La).pdf Davidite-(La) (La,Ce)(Y,U)(Ti,Fe3+)20(O,OH)38 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Hexagonal; commonly metamict. Point Group: 3or3. As complex but rough crystals, to 30 cm, flattened {0001}, cuboidal, or pyramidal; as irregular masses and grains. Twinning: Common about [1120]. Physical Properties: Fracture ...
  • RARE-EARTH ELEMENT BEARING MINERALS

    minresco.com/radioactive/radioactive10.htm The specimens listed below were collected in 2007, and all are naturally formed masses of Davidite-(La) with irregular, unbroken surfaces and the typical red-brown Limonite-type surface patina seen on specimens found at this locality. Chemical composition of Davidite-(La) is: (La,Ce)(Y,U,Fe)(Ti,Fe) 20 (O,OH) 38