[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 Osakaite InformationZn4SO4(OH)6•5H2O |
Molecular Weight = 548.75 gm |
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Zinc 44.69 % Zn 55.62 % ZnO |
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Copper 2.78 % Cu 3.48 % CuO |
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Hydrogen 2.93 % H 26.17 % H2O |
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Sulfur 5.90 % S 14.74 % SO3 |
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Oxygen 43.71 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
Zn3.75Cu0.24(SO4)1.01(OH)5.96•4.99(H2O) |
Found in gallery walls and in cracks in Jurassic shales (Cu, Zn, Pb, Fe, and Mn deposits). New structure type. Dehydrates to namuwite. |
Approved IMA 2006 (Dana # Added) |
Hirao mine, Minoo (Minoh) City, Osaka Prefecture, Japan Link to MinDat.org Location Data. |
Named after the locality. |
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| | Osakaite Crystallographya:b:c =1.0025:1:1.3226 |
a = 8.358, b = 8.337, c = 11.027, Z = 2; alpha = 94.97°, beta = 83.16°, gamma = 119.6° V = 660.84 Den(Calc)= 2.76 |
Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 |
By Intensity(I/Io): 10.96(1), 2.562(0.9), 2.663(0.8),3.229(0.8), 2.717(0.21), 1.574(0.18), 3.642(0.17), 5.47(0.16), |
| Physical Properties of Osakaite{001} Perfect |
White, Pale blue. |
2.7 |
Flexible - Flexible fragments. |
Hexagonal - Six-sided crystal shape in cross-section or habit. |
Platy - Sheet forms (e.g. micas). |
Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite). |
1 - Talc |
Vitreous (Glassy) |
white or pale blue |
| Optical Properties of OsakaiteCI meas= 0.016 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.034 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2017,KPDmeas= 0.2054,KC= 0.2088 Ncalc = 1.56 - 1.57 Biaxial (-), a=1.532, b=1.565, g=1.567, bire=0.0350 |
| Calculated Properties of OsakaiteBulk Density (Electron Density)=2.67 gm/cc |
note: Specific Gravity of Osakaite =2.70 gm/cc. Fermion Index = 0.01 |
Boson Index = 0.99 PEOsakaite = 23.22 barns/electron |
U=PEOsakaite x rElectron Density= 62.05 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Osakaite is Not Radioactive | Osakaite Classification31.01.06.03 (31)Hydrated Sulfates Containing Hydroxyl or Halogen |
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(31.01)where (A+ B++)m (XO4)p Zq·x(H2O), where m:p>6:1 |
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(31.01.06)Schulenbergite group |
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07.DE.40 07 - SULFATES (SELENATES, TELLURATES) |
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07.D - Sulfates (selenates, etc.) with additional anions, with H2O |
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07.DE -With only medium-sized cations; unclassified |
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| Other Osakaite InformationNAME( AmMin, v93:1688) PHYS. PROP.(AmMin, v93:1688) OPTIC PROP.(AmMin, v93:1688) |
Links to other databases for Osakaite : |
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 Osakaite using: Visit our Advertisers for Osakaite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Diamond Dan Publications 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 Osakaite Mineral Data : Ask about Osakaite here : Print or Cut-and-Paste your Osakaite Specimen Label here :
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