| Hydrowoodwardite Mineral Data |
General Hydrowoodwardite Information |
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| Cu1-xAlx(OH)2(SO4)x/2·n(H2O) with 0 < x < 0.67 and n > 3x/2 | |||
| Molecular Weight = 116.81 gm | |||
| Aluminum 11.55 % Al 21.82 % Al2O3 | |||
| Copper 27.20 % Cu 30.63 % Cu2O | |||
| Hydrogen 3.02 % H 26.99 % H2O | |||
| Sulfur 6.86 % S 17.14 % SO3 | |||
| Oxygen 51.37 % O | |||
| ______ ______ | |||
| 100.00 % 96.58 % = TOTAL OXIDE | |||
| Cu0.5Al0.5(OH)2(SO4)0.25·0.75(H2O) | |||
| Member of the Hydrotalcite group. The copper dominant analog of carrboydite and glaucocerinite. | |||
| Approved IMA 1996 (Dana # Added) | |||
| St. Briccius Cu, Ag, Sn mine, Königswalde, near Annaberg, Saxony, Germany. Link to MinDat.org Location Data. | |||
| Named as the higher hydrated analogue of woodwardite. | |||
| IMA1996-038 | |||
Hydrowoodwardite Image | |||
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Hydrowoodwardite Crystallography |
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| a:c = 1:10.39087 | |||
| a = 3.07, c = 31.9, Z = 3; V = 260.37 Den(Calc)= 2.23 | |||
| Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m | |||
| By Intensity(I/Io): 10.5(1), 5.26(0.17), 3.5(0.06), | |||
Physical Properties of Hydrowoodwardite |
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| Blue, Pale blue. | |||
| 2.33 | |||
| Translucent | |||
| Brittle - Uneven - Very brittle fracture producing uneven fragments. | |||
| Botryoidal - "Grape-like" rounded forms (e.g.. malachite). | |||
| Encrustations - Forms crust-like aggregates on matrix. | |||
| Vitreous (Glassy) | |||
| pale blue | |||
Optical Properties of Hydrowoodwardite |
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| CI meas= 0 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= -0.045 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2498,KPDmeas= 0.2391,KC= 0.2389 |
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| Uniaxial (+), w=1.549, e=1.565, bire=0.0160. | |||
Calculated Properties of Hydrowoodwardite |
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relectron=2.33 gm/cc |
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| Fermion Index = 0.00076 Boson Index = 0.99924 |
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PEHydrowoodwardite = 12.28 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Hydrowoodwardite is Not Radioactive |
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Hydrowoodwardite Classification |
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| 31.2.2.2 (31)Hydrated Sulfates Containing Hydroxyl or Halogen | |||
| (31.2)where (A+ B++)6 (XO4) Zq·x(H2O) | |||
| (31.2.2)Dana Group | |||
| VI/D.08-42 VI - Sulfates,Chromates,Molybdates and Tungstates | |||
| VI/D - Water-bearing sulfates with unfamiliar anions. cations of medium size | |||
| VI/D.08 - Spangolite - Glaucocerinite series | |||
Other Hydrowoodwardite Information |
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| NAME( CanMin, 8/99) PHYS. PROP.(MinRec, V 31, No 2) OPTIC PROP.(MinRec, V 31, No. 2) | |||
| Links to other databases for Hydrowoodwardite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas Search for Hydrowoodwardite using: Visit our Advertisers for Hydrowoodwardite : AA Mineral SpecimensB & L Fine Minerals Crystal Vaults Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Hydrowoodwardite Mineral Data : Ask about Hydrowoodwardite here : Print or Cut-and-Paste your Hydrowoodwardite Specimen Label here :
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