General Merrillite-(Y) Information![]() Ca16Y2Mg2(PO4)14 |
![]() Molecular Weight = 2,277.42 gm |
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Calcium 31.68 % Ca 44.32 % CaO |
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Yttrium 7.81 % Y 9.92 % Y2O3 |
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Magnesium 2.13 % Mg 3.54 % MgO |
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Phosphorus 19.04 % P 43.63 % P2O5 |
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Oxygen 39.34 % O |
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100.00 % 101.41 % = TOTAL OXIDE |
![]() Ca18Y2Mg2(PO4)14 |
![]() Extraterrestrial bodies. |
![]() Not Approved IMA 1977 |
![]() Meteorites Link to MinDat.org Location Data. |
![]() Named after George Perkins Merrill (1854-1929), meteorite specialist at U. S. National Museum, Smithsonian Institution, Washington, D.C. USA. |
| | Search for Merrillite-(Y) Images
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| | Merrillite-(Y) Crystallography![]() a:c = 1:3.58096 |
![]() a = 10.362, c = 37.106, Z = 3; V = 3,450.34 Den(Calc)= 3.29 |
![]() Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: R 3c |
![]() By Intensity(I/Io): 2.85(1), 2.58(0.6), 3.19(0.6),3.43(0.6), 5.18(0.6), 1.71(0.5), 1.92(0.5), 1.54(0.4), |
| Physical Properties of Merrillite-(Y)![]() Anhedral Grains - Granular minerals without the expression of crystal shapes |
| Optical Properties of Merrillite-(Y)![]() CI calc= 0.04 (Good) - where the CI = (1-KPDcalc/KC) |
KPDcalc= 0.1889,KC= 0.1969 Ncalc = 1.65 ![]() Uniaxial (-), e=1.62, w=1.623, bire=0.0030. |
| Calculated Properties of Merrillite-(Y)![]() Bulk Density (Electron Density)=3.24 gm/cc |
note: Specific Gravity of Merrillite-(Y) =3.29 gm/cc. ![]() Fermion Index = 0.0027508963 |
Boson Index = 0.9972491037 ![]() PEMerrillite-(Y) = 14.21 barns/electron |
U=PEMerrillite-(Y) x rElectron Density= 45.97 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Merrillite-(Y) is Not Radioactive | Merrillite-(Y) Classification![]() 38.03.04.05 (38)Anhydrous Phosphates, etc |
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(38.03)(A+ B++)3 (XO4)2 |
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(38.03.04)Whitlockite group |
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![]() 08.AC.45 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.A - Phosphates, etc. without additional anions, without H2O |
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08.AC -With medium-sized and large cations |
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| Other Merrillite-(Y) Information![]() NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) |
![]() Links to other databases for Merrillite-(Y) : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - MinDAT 7 - Mineralienatlas (Deutsch) 8 - Online Mineral Museum 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Merrillite-(Y) using: Visit our Advertisers for Merrillite-(Y) : A Bijoux Google Search for Merrillite-(Y)Adam's Minerals Google Search for Merrillite-(Y) Cape Minerals Google Search for Merrillite-(Y) Dakota Matrix Minerals Google Search for Merrillite-(Y) Excalibur Mineral Corp. Google Search for Merrillite-(Y) Exceptional Minerals Google Search for Merrillite-(Y) John Betts Fine Minerals Search for Merrillite-(Y) McDougall Minerals Google Search for Merrillite-(Y) Mineral News Website Link Rock and Mineral Shows Google Search for Merrillite-(Y) Weinrich Minerals, Inc. Google Search for Merrillite-(Y) Ask about Merrillite-(Y) here : Print or Cut-and-Paste your Merrillite-(Y) Specimen Label here :
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