[Newest Minerals] [Rare Minerals] [Cabinet Specimens] [About Us] [Image Gallery] Dakota Matrix Minerals Updated weekly, for the collector, educator, and researcher since 1996 Extensive Inventory of very Rare Minerals. Visa and Mastercard are Welcome General Gramaccioliite-(Y) Information(Pb,Sr)(Y,Mn)Fe2(Ti,Fe)18O38 |
Molecular Weight = 1,822.46 gm |
|
Barium 0.15 % Ba 0.17 % BaO |
|
Strontium 1.30 % Sr 1.54 % SrO |
|
Calcium 0.09 % Ca 0.12 % CaO |
|
Lanthanum 0.15 % La 0.18 % La2O3 |
|
Cerium 0.62 % Ce 0.72 % Ce2O3 |
|
Yttrium 2.39 % Y 3.04 % Y2O3 |
|
Uranium 0.26 % U 0.29 % U2O3 |
|
Titanium 35.55 % Ti 59.30 % TiO2 |
|
Manganese 1.12 % Mn 1.44 % MnO |
|
Niobium 0.20 % Nb 0.29 % Nb2O5 |
|
Vanadium 0.11 % V 0.20 % V2O5 |
|
Zinc 0.79 % Zn 0.98 % ZnO |
|
Iron 16.82 % Fe 21.64 % FeO |
|
Lead 6.94 % Pb 7.47 % PbO |
|
Neodymium 0.16 % Nd 0.18 % Nd2O3 |
|
Oxygen 33.36 % O |
|
______ ______ |
|
100.00 % 97.56 % = TOTAL OXIDE |
Pb0.61Sr0.27Ba0.02U0.02Y0.49Mn2+0.37Ce0.08Ca0.04Nd0.02La0.02Ti13.53Fe2+5.49Zn0.22
V5+0.04Nb0.04O38 |
Hydrothermal quartz veins in a biotitic gneiss. (crichtonite group; structure) |
Approved IMA 2003 (Dana # Added) |
Sambuco, Stura Valley, Piedmont, Italy. Link to MinDat.org Location Data. |
Named for Prof. Carlo M. Gramaccioli (1935-) of the University of Milano, Italy. |
Davidite-(Y) |
|
IMA2001-034 |
| | Gramaccioliite-(Y) Image
|
|
Gramaccioliite-(Y) Crystallographya:c = 1:2.01421 |
a = 10.411, c = 20.97, Z = 3; V = 1,968.40 Den(Calc)= 4.61 |
Trigonal - RhombohedralH-M Symbol ( 3) Space Group: R 3 |
By Intensity(I/Io): 3.002(1)(300), 1.606(0.95)(3.1.10), 2.258(0.7)(134),2.892(0.7)(116), 1.809(0.6)(318), 2.147(0.5), 2.852(0.5), |
|
Mouse
|
| Physical Properties of Gramaccioliite-(Y)None |
Black. |
Opaque |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. |
Hexagonal - Six-sided crystal shape in cross-section or habit. |
Tabular - Form dimensions are thin in one direction. |
Metallic |
black |
| Optical Properties of Gramaccioliite-(Y)NCalc= 2.38 - from Gladstone-Dale relationship (KC = 0.2989) where Ncalc=Dcalc*KC+1 |
Weak. |
|
| Calculated Properties of Gramaccioliite-(Y)Bulk Density (Electron Density)=4.32 gm/cc |
note: Specific Gravity of Gramaccioliite-(Y) =4.61 gm/cc. Fermion Index = 0.06 |
Boson Index = 0.94 PEGramaccioliite-(Y) = 142.11 barns/electron |
U=PEGramaccioliite-(Y) x relectron= 613.22 barns/cc. |
GRapi = 21,765.77 (Gamma Ray American Petroleum Institute Units)
Gramaccioliite-(Y) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.
Weight of pure Gramaccioliite-(Y) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.61 gm/cc.* | Gramaccioliite-(Y) Classification08.05.01.11 (08)Multiple Oxides with Nb, Ta, and Ti |
|
(08.05)Dana Type |
|
(08.05.01)Crichtonite group (ABC18 T2 O38) |
|
|
|
|
|
|
|
|
|
|
|
04.CC.40 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
|
04.C - Metal:Oxygen = 2:3, 3:5, and Similar |
|
04.CC -With large and medium-sized cations |
|
|
|
|
|
|
|
|
|
|
|
| Other Gramaccioliite-(Y) InformationNAME( AmMin 89:1827) PHYS. PROP.(AmMin 89:1827) OPTIC PROP.(AmMin 89:1827) |
Links to other databases for Gramaccioliite-(Y) : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - Google Images 4 - Google Scholar 5 - MinDAT 6 - MinMax(Deutsch) 7 - MinMax(English) 8 - Mineralienatlas (Deutsch) 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Gramaccioliite-(Y) using: Visit our Advertisers for Gramaccioliite-(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 Gramaccioliite-(Y) Mineral Data : Ask about Gramaccioliite-(Y) here : Print or Cut-and-Paste your Gramaccioliite-(Y) Specimen Label here :
| |
|
| | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||