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Waylandite Mineral Data |
General Waylandite Information |
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BiAl3(PO4)2(OH)6 | ||
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Molecular Weight = 581.91 gm | ||
Aluminum 13.91 % Al 26.28 % Al2O3 | |||
Bismuth 35.91 % Bi 40.04 % Bi2O3 | |||
Phosphorus 10.65 % P 24.39 % P2O5 | |||
Hydrogen 1.04 % H 9.29 % H2O | |||
Oxygen 38.49 % O | |||
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100.00 % 100.00 % = TOTAL OXIDE | |||
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BiAl3(PO4)2(OH)6 | ||
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Rare secondary mineral replacing primary bismuth minerals. | ||
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Approved IMA 1962 | ||
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Wampewo pegmatite, Gamba Hill, near Kampala, southwest Uganda. Link to MinDat.org Location Data. | ||
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Named for Edgar James Wayland, first Director of the Uganda Geological Survey. | ||
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Waylandite + Pronunciation ![]() |
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Waylandite Image | |||
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Waylandite Crystallography |
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a:c = 1:2.3162 | ||
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a = 6.9834, c = 16.175, Z = 3; V = 683.14 Den(Calc)= 4.24 | ||
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Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: R 3m | ||
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By Intensity(I/Io): 2.93(1), 5.66(0.71), 3.483(0.5), | ||
Physical Properties of Waylandite |
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White, Light brown. | ||
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3.86 | ||
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Transparent to Translucent | ||
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Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. | ||
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4-5 - Fluorite-Apatite | ||
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Vitreous - Dull | ||
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white | ||
Optical Properties of Waylandite |
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CI meas= -0.027 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.065 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1795,KPDmeas= 0.1972,KC= 0.1919 Ncalc = 1.74 - 1.81 |
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Uniaxial (-), e=1.748, w=1.774, bire=0.0260. | ||
Calculated Properties of Waylandite |
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Bulk Density (Electron Density)=3.58 gm/cc note: Specific Gravity of Waylandite =3.86 gm/cc. |
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Fermion Index = 0.0001866814 Boson Index = 0.9998133186 |
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PEWaylandite = 623.81 barns/electron U=PEWaylandite x rElectron Density=2,234.49 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Waylandite is Not Radioactive |
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Waylandite Classification |
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41.05.12.01 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen | ||
(41.05)where (A B)2 (XO4) Zq | |||
(41.05.12)Waylandite Group | |||
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08.BL.13 08 - PHOSPHATES, ARSENATES, VANADATES | ||
08.B - Phosphates, etc. with Additional Anions, without H2O | |||
08.BL -With medium-sized and large cations, (OH, etc.):RO4 = 3:1 | |||
Other Waylandite Information |
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NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
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Links to other databases for Waylandite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Waylandite using: Visit our Advertisers for Waylandite : Ask about Waylandite here : Print or Cut-and-Paste your Waylandite Specimen Label here :
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