[Mineral Forums] [Minerals for Sale] [About Us] [En Espanol] [Mineral Gallery] Fabre Minerals - Europe's first Internet mineral dealer, on the web since 1996 General Yttrocrasite-(Y) Information(Y,Th,Ca,U)(Ti,Fe+++)2(O,OH)6 |
Molecular Weight = 298.05 gm |
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Calcium 4.03 % Ca 5.64 % CaO |
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Yttrium 14.91 % Y 18.94 % Y2O3 |
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Thorium 7.79 % Th 8.86 % ThO2 |
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Uranium 7.99 % U 9.06 % UO2 |
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Titanium 30.52 % Ti 50.92 % TiO2 |
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Iron 1.87 % Fe 2.68 % Fe2O3 |
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Hydrogen 0.68 % H 6.04 % H2O |
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Oxygen 32.21 % O |
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100.00 % 102.15 % = TOTAL OXIDE |
Y0.5Th0.1Ca0.3U0.1Ti1.9Fe3+0.1O4(OH)2 |
Precambrian granites, pegmatites, and metamorphic rocks. A doubtful mineral. |
Valid Species (Pre-IMA) 1906 |
Three miles east of Barringer Hill, Llano Co. in Burnet Co., Texas, USA. Link to MinDat.org Location Data. |
From the Greek for "mixture", because it is a mixture fo yttrium with many other elements. |
Yttrocrasite-(Y) + Pronunciation |
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Yttrocrasite-(Y) Crystallography OrthorhombicSpace Group: Unk |
| Physical Properties of Yttrocrasite-(Y)None |
Black. |
4.8 |
Opaque |
Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments. |
Metamict - Mineral originally crystalline, now amorphous due to radiation damage. |
5.5-6 - Knife Blade-Orthoclase |
Radioactive. |
Resinous |
Nonmagnetic |
reddish brown |
| Optical Properties of Yttrocrasite-(Y)CI meas= 0.204 (Poor) - where the CI = (1-KPDmeas/KC) |
KPDmeas= 0.2365,KC= 0.297 Ncalc = 2.43 Isotropic, n=2.12-2.15. |
| Calculated Properties of Yttrocrasite-(Y)Bulk Density (Electron Density)=4.45 gm/cc |
note: Specific Gravity of Yttrocrasite-(Y) =4.80 gm/cc. Fermion Index = 0.04 |
Boson Index = 0.96 PEYttrocrasite-(Y) = 397.50 barns/electron |
U=PEYttrocrasite-(Y) x relectron=1,768.09 barns/cc. |
GRapi = 784,723.18 (Gamma Ray American Petroleum Institute Units)
Yttrocrasite-(Y) 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)
38.76 ± 9.69 grams of pure Yttrocrasite-(Y) .
Weight of pure Yttrocrasite-(Y) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.80 gm/cc.* | Yttrocrasite-(Y) Classification08.03.08.04 (08)Multiple Oxides with Nb, Ta, and Ti |
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(08.03)where A (B2O6) |
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(08.03.08)Polycrase Group |
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04.DG.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.D - Metal:Oxygen = 1:2 and similar |
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04.DG -With large (± medium-sized) cations; chains of edge-sharing octahedra |
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| Other Yttrocrasite-(Y) InformationNAME( Ford32) PHYS. PROP.(Ford32) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
Links to other databases for Yttrocrasite-(Y) : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Google Images 5 - Google Scholar 6 - Handbook of Mineralogy (UofA) 7 - MinDAT 8 - MinMax(Deutsch) 9 - MinMax(English) 10 - Mineralienatlas (Deutsch) 11 - QUT Mineral Atlas 12 - Ruff.Info Search for Yttrocrasite-(Y) using: Visit our Advertisers for Yttrocrasite-(Y) : 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 Yttrocrasite-(Y) Mineral Data : Ask about Yttrocrasite-(Y) here : Print or Cut-and-Paste your Yttrocrasite-(Y) Specimen Label here :
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