General Heinrichite Information
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Chemical Formula: |
Ba(UO2)2(AsO4)2·10-12(H2O) |
Composition: |
Molecular Weight = 1,153.39 gm |
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Barium 11.91 % Ba 13.29 % BaO |
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Uranium 41.27 % U 46.82 % UO2 |
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Arsenic 12.99 % As 19.93 % As2O5 |
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Hydrogen 1.92 % H 17.18 % H2O |
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Oxygen 31.90 % O |
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______ ______ |
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100.00 % 97.23 % = TOTAL OXIDE |
Empirical Formula: |
Ba(UO2)2(AsO4)2·11(H2O) |
IMA Status: |
Valid Species (Pre-IMA) 1958 |
Locality: |
Link to MinDat.org Location Data. |
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Heinrichite Image |
Images:
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Heinrichite Crystallography
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Axial Ratios: |
a:c = 1:2.88359 |
Cell Dimensions: |
a = 7.13, c = 20.56, Z = 2; V = 1,045.21 Den(Calc)= 3.66 |
Crystal System: |
Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: IA/mmm |
X Ray Diffraction: |
By Intensity(I/Io): 3.57(1), 5.03(0.8), 8.89(0.8), |
Crystal Structure:
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Locock A J , Burns P C , Flynn T M , The Canadian Mineralogist , 43 (2005) p.721-733, Structures of strontium- and barium-dominant compounds that contain the autunite-type sheet
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Physical Properties of Heinrichite
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Cleavage: |
[001] Perfect, [100] Distinct |
Color: |
Green, Yellow, Yellow green. |
Density: |
3.61 |
Diaphaniety: |
Transparent to Translucent |
Hardness: |
2.5 - Finger Nail |
Luminescence: |
Fluorescent. |
Luster: |
Vitreous - Pearly |
Streak: |
yellow white |
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Optical Properties of Heinrichite
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Dichroism (e): |
colorless. |
Dichroism (w): |
colorless. |
Gladstone-Dale: |
CI meas= -0.056 (Good) - where the CI = (1-KPDmeas/KC) CI calc= -0.041 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1609,KPDmeas= 0.1632,KC= 0.1545 |
Optical Data: |
Uniaxial (-), e=1.573, w=1.605, bire=0.0320. |
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Calculated Properties of Heinrichite
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Electron Density: |
relectron=3.25 gm/cc note: rHeinrichite =3.66 gm/cc. |
Fermion Index |
Fermion Index = 0.02434 Boson Index = 0.97566 |
Photoelectric: |
PEHeinrichite =1,118.03 barns/electron U=PEHeinrichite x relectron=3,632.95 barns/cc. |
Radioactivity: |
GRapi = 3,123,500.56 (Gamma Ray American Petroleum Institute Units)
Heinrichite 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)
9.74 ± 2.43 grams of pure Heinrichite .
Estimated Maximum U.S. Postal Shipping Size
(10 mRem/hr limit, Unshielded 100 cm box)
973.80 ±243.45 grams of pure Heinrichite .
Estimated Radioactivity from Heinrichite - 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 / 8.05 cm |
73,881,695 |
2.00E-03 |
3,123,500.56 |
1,026.90 |
| 100 gm / 3.74 cm |
7,388,170 |
2.00E-04 |
312,350.06 |
102.69 |
| 10 gm / 1.73 cm |
738,817 |
2.00E-05 |
31,235.01 |
10.27 |
| 1 gm / 8.05 mm |
73,882 |
2.00E-06 |
3,123.50 |
1.03 |
| 0.1 gm / 3.74 mm |
7,388 |
2.00E-07 |
312.35 |
0.10 |
| 0.01 gm / 1.73 mm |
739 |
2.00E-08 |
31.24 |
0.01 |
| 0.001 gm / 0.81 mm |
74 |
2.00E-09 |
3.12 |
0.00 |
Weight of pure Heinrichite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.66 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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Heinrichite Classification
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Dana Class: |
40.2a.4.1 (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.01-120 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.01 - Autunite group |
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VII/E.01-10 Trogerite H2(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m |
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VII/E.01-20 Sabugalite HAl(UO2)4(PO4)4·16(H2O) I 4/mmm 4/m 2/m 2/m |
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VII/E.01-30 Saleeite Mg(UO2)2(PO4)2·10(H2O) I 4/mmm 4/m 2/m 2/m |
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VII/E.01-35 Seelite-1 Mg[(UO2)(AsO3)x(AsO4)1-x]2·7(H2O) C 2/m 2/m |
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VII/E.01-35* Seelite-2 Mg(UO2)(AsO3)x(AsO4)1-x·7(H2O)(x=0.7) C 2/m 2/m |
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VII/E.01-40 Novacekite Mg(UO2)2(AsO4)2·12(H2O) P 41/n 4/m |
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VII/E.01-50 Kahlerite Fe(UO2)2(AsO4)2·10-12(H2O) P 41/n 4/m |
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VII/E.01-60 Fritzscheite Mn(UO2)2[(V,P)O4]2·4(H2O) Pnam 2/m 2/m 2/m |
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VII/E.01-70 Torbernite Cu(UO2)2(PO4)2·8-12(H2O) I 4/mmm 4/m 2/m 2/m |
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VII/E.01-80 Zeunerite Cu(UO2)2(AsO4)2·10-16(H2O) P 4/nnc 4/m 2/m 2/m |
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VII/E.01-90 Autunite Ca(UO2)2(PO4)2·10-12(H2O) I 4/mmm 4/m 2/m 2/m |
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VII/E.01-100 Uranospinite Ca(UO2)2(AsO4)2·10(H2O) I 4/mmm 4/m 2/m 2/m |
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VII/E.01-110 Uranocircite Ba(UO2)2(PO4)2·12(H2O) P 4/nnc 4/m 2/m 2/m |
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VII/E.01-120 Heinrichite Ba(UO2)2(AsO4)2·10-12(H2O) IA/mmm 4/m 2/m 2/m |
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VII/E.01-130 Sodium-autunite Na2(UO2)2(PO4)2·8(H2O) P 4/nmm 4/m 2/m 2/m |
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Other Heinrichite Information
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References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Heinrichite :
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 Heinrichite Specimen Label here :
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Heinrichite
Ba(UO2)2(AsO4)2·10-12(H2O)
Dana No: 40.2a.4.1 Strunz No: VII/E.01-120
Locality:
Notes:
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