General Haynesite Information
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Chemical Formula: |
(UO2)3(SeO3)2(OH)2·5(H2O) |
Composition: |
Molecular Weight = 1,188.09 gm |
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Uranium 60.10 % U 68.18 % UO2 |
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Hydrogen 1.02 % H 9.10 % H2O |
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Selenium 13.29 % Se 18.68 % SeO2 |
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Oxygen 25.59 % O |
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______ ______ |
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100.00 % 95.96 % = TOTAL OXIDE |
Empirical Formula: |
(UO2)3(SeO3)2(OH)2·5(H2O) |
Environment: |
Found as crusts on mudstones and sandstones of the Morrison formation. |
IMA Status: |
Approved IMA 1991 |
Locality: |
Repete mine near Blanding, San Juan County, Utah. USA. Link to MinDat.org Location Data. |
Name Origin: |
Named for Patrick Haynes, U.S. Geologist who first collected the mineral. |
Synonym: |
IMA1990-024 |
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Haynesite Image |
Images:
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Images:
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Haynesite
Comments: Bright yellow sunburst clusters of haynesite on a fracture surface..
Location: Repete Mine, San Juan Co., Utah, USA.
Scale: Picture size 0.5 cm.
© Paul M. Schumacher |
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Haynesite Crystallography
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Axial Ratios: |
a:b:c =0.4604:1:0.3989 |
Cell Dimensions: |
a = 8.025, b = 17.43, c = 6.953, Z = 2; V = 972.56 Den(Calc)= 4.06 |
Crystal System: |
OrthorhombicSpace Group: Pnc2,Pncm |
X Ray Diffraction: |
By Intensity(I/Io): 8.01(1), 2.912(0.8), 4.01(0.7), |
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Physical Properties of Haynesite
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Cleavage: |
[010] Good |
Color: |
Brownish yellow, Amber. |
Density: |
4.1 |
Diaphaniety: |
Transparent to Translucent |
Habit: |
Acicular - Occurs as needle-like crystals. |
Habit: |
Rosette - Bundled tabular aggregates resembling rose flower petals. |
Habit: |
Tabular - Form dimensions are thin in one direction. |
Hardness: |
1.5-2 - Talc-Gypsum |
Luminescence: |
Fluorescent, Short UV=yellowish green. |
Luster: |
Vitreous (Glassy) |
Streak: |
white |
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Optical Properties of Haynesite
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Gladstone-Dale: |
CI meas= -0.311 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.324 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1795,KPDmeas= 0.1777,KC= 0.1355 |
Optical Data: |
Biaxial (-), a=1.618, b=1.783, g=1.785, bire=0.1670, 2V(Calc)=10, 2V(Meas)=45. |
Pleochroism (x): |
pale yellow. |
Pleochroism (y): |
bright yellow. |
Pleochroism (z): |
bright yellow. |
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Calculated Properties of Haynesite
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Electron Density: |
relectron=3.51 gm/cc note: rHaynesite =4.10 gm/cc. |
Fermion Index |
Fermion Index = 0.01455 Boson Index = 0.98545 |
Photoelectric: |
PEHaynesite =1,605.53 barns/electron U=PEHaynesite x relectron=5,629.21 barns/cc. |
Radioactivity: |
GRapi = 4,381,059.34 (Gamma Ray American Petroleum Institute Units)
Haynesite is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.
Estimated Maximum U.S. Postal Shipping Size
(10 mRem/hr limit, Unshielded 10 cm box)
6.94 ± 1.74 grams of pure Haynesite .
Estimated Maximum U.S. Postal Shipping Size
(10 mRem/hr limit, Unshielded 100 cm box)
694.28 ±173.57 grams of pure Haynesite .
Estimated Radioactivity from Haynesite - very strong
Specimen Size Weight/Volume (Sphere) * |
Calculated Activity Bequerols (Bq) |
Calculated Activity Curies (Ci) |
Estimated Activity GR(api) |
Estimated Exposure (mRem**)/hr If Held in Hand For One Hour |
| 1000 gm / 7.75 cm |
107,585,659 |
2.91E-03 |
4,381,059.34 |
1,440.35 |
| 100 gm / 3.60 cm |
10,758,566 |
2.91E-04 |
438,105.93 |
144.03 |
| 10 gm / 1.67 cm |
1,075,857 |
2.91E-05 |
43,810.59 |
14.40 |
| 1 gm / 7.75 mm |
107,586 |
2.91E-06 |
4,381.06 |
1.44 |
| 0.1 gm / 3.60 mm |
10,759 |
2.91E-07 |
438.11 |
0.14 |
| 0.01 gm / 1.67 mm |
1,076 |
2.91E-08 |
43.81 |
0.01 |
| 0.001 gm / 0.78 mm |
108 |
2.91E-09 |
4.38 |
0.00 |
Weight of pure Haynesite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.10 gm/cc.*
Goverment Estimate of Average Annual Exposure (
360 mRem)
**
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
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Haynesite Classification
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Dana Class: |
34.7.7.1 (34)Selenites - Tellurites - Sulfites |
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(34.7)Dana Type |
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(34.7.7)Dana Group |
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34.7.7.1 Haynesite (UO2)3(SeO3)2(OH)2·5(H2O) Pnc2,Pncm Ortho |
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34.7.7.2 Larisaite! Na(H3O)(UO2)3(SeO3)2O2·4(H2O) Pm 2 |
Strunz Class: |
IV/K.11-25 IV - Oxides |
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IV/K - Uranyl-Selenides with [UO2]2+ - [SeO3]2- groups |
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IV/K.11 - Derriksite - Demesmaekerite series |
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IV/K.11-10 Derriksite Cu4(UO2)(SeO3)2(OH)6 Pn21m mm2 |
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IV/K.11-20 Marthozite Cu[(UO2)3(SeO3)2O2]·8(H2O) Pbn21 mm2 |
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IV/K.11-25 Haynesite (UO2)3(SeO3)2(OH)2·5(H2O) Pnc2,Pncm Ortho |
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IV/K.11-26 Larisaite! Na(H3O)(UO2)3(SeO3)2O2·4(H2O) Pm 2 |
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IV/K.11-28 Piretite! Ca(UO2)3(SeO3)2(OH)4-4(H2O) P mn21,Pmnm Ortho |
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IV/K.11-30 Guilleminite Ba(UO2)3(SeO3)2O2·3(H2O) P 21nm mm2 |
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IV/K.11-40 Demesmaekerite Pb2Cu5(UO2)2(SeO3)6(OH)6·2(H2O) P1 1 |
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Other Haynesite Information
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References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) |
See Also: |
Links to other databases for Haynesite :
1 -Am. Min. Crystal Structure Database
2 -Athena
3 - EUROmin Project
4 -Google Images
5 -Google Scholar
6 -Handbook of Mineralogy (UofA)
7 -MinDAT
8 -MinMax(Deutsch)
9 -MinMax(English)
10 -Mineralienatlas (Deutsch)
11 -QUT Mineral Atlas
12 - Uranium Minerals
13 -École des Mines de Paris
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Print or Cut-and-Paste your Haynesite Specimen Label here :
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Haynesite
(UO2)3(SeO3)2(OH)2·5(H2O)
Dana No: 34.7.7.1 Strunz No: IV/K.11-25
Locality:
Notes:
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