Metaheinrichite Mineral Data

Metaheinrichite Mineral Data +

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General Metaheinrichite Information

Chemical Formula:

Ba(UO2)2(AsO4)2·8(H2O)

Composition:

Molecular Weight = 1,099.34 gm

Barium 12.49 % Ba 13.95 % BaO

Uranium 43.30 % U 49.13 % UO₂

Arsenic 13.63 % As 20.91 % As₂O₅

Hydrogen 1.47 % H 13.11 % H₂O

Oxygen 29.11 % O

______ ______

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.

Metaheinrichite Image

Images:

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

Images:

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

Metaheinrichite Crystallography

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/?

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.71(1), 8.55(1), 5.41(0.9),

Physical Properties of Metaheinrichite

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

Optical Properties of Metaheinrichite

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.

Calculated Properties of Metaheinrichite

Electron Density:

r_electron=3.61 gm/cc
note: r_{Metaheinrichite}=4.12 gm/cc.

Fermion Index

Fermion Index = 0.02552
Boson Index = 0.97448

Photoelectric:

PE_{Metaheinrichite}=1,187.60 barns/electron
U=PE_{Metaheinrichite} x r_electron=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) **
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

Metaheinrichite Classification

Dana Class:

40.2a.4.2 (40)Hydrated Phosphates, etc

(40.2a)where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++

(40.2a.4)Dana Group

40.2a.4.1 Heinrichite Ba(UO2)2(AsO4)2·10-12(H2O) IA/mmm 4/m 2/m 2/m

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

VII/E - Uranylphosphates and uranylvanadates with [UO2]2+ - [PO4 | AsO4]3- and [UO2]2+ - [V2O8]6-

VII/E.02 - Meta-autunite group

VII/E.02-10 Metanovacekite Mg(UO2)2(AsO4)2·4-8(H2O) P 4/n 4/m

VII/E.02-20 Bassetite Fe(UO2)2(PO4)2·8(H2O) P 2₁/m 2/m

VII/E.02-30 Metakahlerite Fe(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m

VII/E.02-40 Lehnerite Mn[UO2/PO4]2·8(H2O) P 2₁/n 2/m

VII/E.02-50 Metakirchheimerite Co(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m

VII/E.02-60 Metatorbernite Cu(UO2)2(PO4)2·8(H2O) P 4/n 4/m

VII/E.02-70 Metazeunerite Cu(UO2)2(AsO4)2·8(H2O) P 4/n 4/m

VII/E.02-80 Metalodevite Zn(UO2)2(AsO4)2·10(H2O) P 4₁/m 4/m

VII/E.02-90 Meta-autunite Ca(UO2)2(PO4)2·2-6(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-95 Sodium meta-autunite! Na2(UO2)2(PO4)2·6-8(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-100 Meta-uranospinite Ca(UO2)2(AsO4)2·8(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-110 Meta-uranocircite Ba(UO2)2(PO4)2·6-8(H2O) P 2₁ 2

VII/E.02-120 Metaheinrichite Ba(UO2)2(AsO4)2·8(H2O) P 4₁/? 4/m

VII/E.02-130 Sodium-uranospinite (Na2,Ca)(UO2)2(AsO4)2·5(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-140 Meta-ankoleite K2(UO2)2(PO4)2·6(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-150 Abernathyite K(UO2)(AsO4)·4(H2O) P 4/ncc 4/m 2/m 2/m

VII/E.02-160 Uramphite (NH4)(UO2)(PO4)·3(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-170 Chernikovite (H3O)2(UO2)2(PO4)2·6(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-180 Pseudo-autunite* (H3O)4Ca2(UO2)2(PO4)4·5(H2O)(?) Unk Ortho

VII/E.02-190 Ulrichite CaCu(UO2)(PO4)2·4(H2O) C 2/m 2/m

Other Metaheinrichite Information

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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Print or Cut-and-Paste your Metaheinrichite Specimen Label here :

Metaheinrichite

Ba(UO2)2(AsO4)2·8(H2O)
Dana No: 40.2a.4.2 Strunz No: VII/E.02-120
Locality:

Notes: