General Metaheinrichite Information
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Chemical Formula: |
Ba(UO2)2(AsO4)2·8(H2O) |
Composition: |
Molecular Weight = 1,099.34 gm |
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Barium 12.49 % Ba 13.95 % BaO |
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Uranium 43.30 % U 49.13 % UO2 |
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Arsenic 13.63 % As 20.91 % As2O5 |
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Hydrogen 1.47 % H 13.11 % H2O |
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Oxygen 29.11 % O |
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______ ______ |
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100.00 % 97.09 % = TOTAL OXIDE |
Empirical Formula: |
Ba(UO2)2(AsO4)2·8(H2O) |
Environment: |
Alteration product of heinrichite. |
IMA Status: |
Valid Species (Pre-IMA) 1958 |
Locality: |
White King mine, 22 km NW of Lakeview, Lake County, Oregon, USA. Link to MinDat.org Location Data. |
Name Origin: |
Named as the lower hydrate and for Eberhardt William Heinrich (1918-1991), Mineralogist, University of Michigan, Ann Arbor, MI, USA. |
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Metaheinrichite Image |
Images:
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Metaheinrichite
Comments: Siliceous jasperoid with a black crust of uraninite (?) and bright canary yellow crystals of metaheinrichite crystals to 2.5mm across.
Location: White King Mine, Lakeview, Oregon, USA.
Scale: Picture size 2 cm.
© John Veevaert |
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Images:
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Metaheinrichite
Comments: Very pale greenish crystals of metaheinrichite on matrix.
Location: Schmiedestollenhalde mine, Wittichen, Schenkenzell, Schwartzwald (Black Forest), Baden-W?rttemberg, Germany.
Scale: Picture size 0.5 cm.
© Paul M. Schumacher |
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Metaheinrichite Crystallography
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Axial Ratios: |
a:c = 1:2.49435 |
Cell Dimensions: |
a = 7.08, c = 17.66, Z = 2; V = 885.23 Den(Calc)= 4.12 |
Crystal System: |
Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: P 41/? |
X Ray Diffraction: |
By Intensity(I/Io): 3.71(1), 8.55(1), 5.41(0.9), |
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Physical Properties of Metaheinrichite
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Cleavage: |
[001] Perfect, [100] Distinct |
Color: |
Yellowish green. |
Density: |
4.04 |
Diaphaniety: |
Transparent to Translucent |
Hardness: |
2.5 - Finger Nail |
Luster: |
Vitreous - Pearly |
Streak: |
yellowish white |
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Optical Properties of Metaheinrichite
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Gladstone-Dale: |
CI meas= -0.062 (Fair) - where the CI = (1-KPDmeas/KC) CI calc= -0.041 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1514,KPDmeas= 0.1544,KC= 0.1454 |
Optical Data: |
Uniaxial (-), e=1.608-1.609, w=1.637-1.641, bire=0.0290-0.0320. |
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Calculated Properties of Metaheinrichite
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Electron Density: |
relectron=3.61 gm/cc note: rMetaheinrichite =4.12 gm/cc. |
Fermion Index |
Fermion Index = 0.02552 Boson Index = 0.97448 |
Photoelectric: |
PEMetaheinrichite =1,187.60 barns/electron U=PEMetaheinrichite x relectron=4,290.52 barns/cc. |
Radioactivity: |
GRapi = 3,236,710.54 (Gamma Ray American Petroleum Institute Units)
Metaheinrichite 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)
9.40 ± 2.35 grams of pure Metaheinrichite .
Estimated Maximum U.S. Postal Shipping Size
(10 mRem/hr limit, Unshielded 100 cm box)
939.74 ±234.94 grams of pure Metaheinrichite .
Estimated Radioactivity from Metaheinrichite - 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 / 7.74 cm |
77,513,874 |
2.09E-03 |
3,236,710.54 |
1,064.12 |
| 100 gm / 3.59 cm |
7,751,387 |
2.09E-04 |
323,671.05 |
106.41 |
| 10 gm / 1.67 cm |
775,139 |
2.09E-05 |
32,367.11 |
10.64 |
| 1 gm / 7.74 mm |
77,514 |
2.09E-06 |
3,236.71 |
1.06 |
| 0.1 gm / 3.59 mm |
7,751 |
2.09E-07 |
323.67 |
0.11 |
| 0.01 gm / 1.67 mm |
775 |
2.09E-08 |
32.37 |
0.01 |
| 0.001 gm / 0.77 mm |
78 |
2.09E-09 |
3.24 |
0.00 |
Weight of pure Metaheinrichite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.12 gm/cc.*
Goverment Estimate of Average Annual Exposure (
360 mRem)
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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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Metaheinrichite Classification
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Dana Class: |
40.2a.4.2 (40)Hydrated Phosphates, etc |
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(40.2a)where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++ |
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(40.2a.4)Dana Group |
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40.2a.4.1 Heinrichite Ba(UO2)2(AsO4)2·10-12(H2O) IA/mmm 4/m 2/m 2/m |
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40.2a.4.2 Metaheinrichite Ba(UO2)2(AsO4)2·8(H2O) P 41/? 4/m |
Strunz Class: |
VII/E.02-120 VII - Phosphates, Arsenates and Vanadates |
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VII/E - Uranylphosphates and uranylvanadates with [UO2]2+ - [PO4 | AsO4]3- and [UO2]2+ - [V2O8]6- |
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VII/E.02 - Meta-autunite group |
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VII/E.02-10 Metanovacekite Mg(UO2)2(AsO4)2·4-8(H2O) P 4/n 4/m |
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VII/E.02-20 Bassetite Fe(UO2)2(PO4)2·8(H2O) P 21/m 2/m |
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VII/E.02-30 Metakahlerite Fe(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m |
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VII/E.02-40 Lehnerite Mn[UO2/PO4]2·8(H2O) P 21/n 2/m |
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VII/E.02-50 Metakirchheimerite Co(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m |
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VII/E.02-60 Metatorbernite Cu(UO2)2(PO4)2·8(H2O) P 4/n 4/m |
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VII/E.02-70 Metazeunerite Cu(UO2)2(AsO4)2·8(H2O) P 4/n 4/m |
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VII/E.02-80 Metalodevite Zn(UO2)2(AsO4)2·10(H2O) P 41/m 4/m |
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VII/E.02-90 Meta-autunite Ca(UO2)2(PO4)2·2-6(H2O) P 4/nmm 4/m 2/m 2/m |
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VII/E.02-95 Sodium meta-autunite! Na2(UO2)2(PO4)2·6-8(H2O) P 4/nmm 4/m 2/m 2/m |
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VII/E.02-100 Meta-uranospinite Ca(UO2)2(AsO4)2·8(H2O) P 4/nmm 4/m 2/m 2/m |
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VII/E.02-110 Meta-uranocircite Ba(UO2)2(PO4)2·6-8(H2O) P 21 2 |
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VII/E.02-120 Metaheinrichite Ba(UO2)2(AsO4)2·8(H2O) P 41/? 4/m |
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VII/E.02-130 Sodium-uranospinite (Na2,Ca)(UO2)2(AsO4)2·5(H2O) P 4/nmm 4/m 2/m 2/m |
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VII/E.02-140 Meta-ankoleite K2(UO2)2(PO4)2·6(H2O) P 4/nmm 4/m 2/m 2/m |
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VII/E.02-150 Abernathyite K(UO2)(AsO4)·4(H2O) P 4/ncc 4/m 2/m 2/m |
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VII/E.02-160 Uramphite (NH4)(UO2)(PO4)·3(H2O) P 4/nmm 4/m 2/m 2/m |
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VII/E.02-170 Chernikovite (H3O)2(UO2)2(PO4)2·6(H2O) P 4/nmm 4/m 2/m 2/m |
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VII/E.02-180 Pseudo-autunite* (H3O)4Ca2(UO2)2(PO4)4·5(H2O)(?) Unk Ortho |
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VII/E.02-190 Ulrichite CaCu(UO2)(PO4)2·4(H2O) C 2/m 2/m |
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Other Metaheinrichite Information
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References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Metaheinrichite :
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 -École des Mines de Paris
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Metaheinrichite
Ba(UO2)2(AsO4)2·8(H2O)
Dana No: 40.2a.4.2 Strunz No: VII/E.02-120
Locality:
Notes:
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