Metaheinrichite Mineral Data

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.

Name Pronunciation:

Metaheinrichite + Pronunciation

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-WÃ¼rttemberg, Germany. Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Metaheinrichite Crystallography

Axial Ratios:

a:b:c =0.3937:1:0.3942

Cell Dimensions:

a = 6.943, b = 17.634, c = 6.952, Z = 2; beta = 90.023° V = 851.15 Den(Calc)= 4.29

Crystal System:

Monoclinic - SphenoidalH-M Symbol (2) Space Group: P 2₁

$Help on X Ray Diffraction:$ 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

Diaphaneity:

Transparent to Translucent

Habit:

Scaly - Morphology like fish scales.

Hardness:

2.5 - Finger Nail

Luminescence:

Fluorescent, Short UV=bright green to greenish yellow, Long UV=bright green to greenish yellow.

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 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1454,KPDmeas= 0.1544,KC= 0.1454
Ncalc = 1.59 - 1.62

Optical Data:

Uniaxial (-), e=1.608-1.609, w=1.637-1.641, bire=0.0290-0.0320.

Calculated Properties of Metaheinrichite

Electron Density:

Bulk Density (Electron Density)=3.76 gm/cc
note: Specific Gravity of Metaheinrichite =4.29 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_{Metaheinrichite}=1,187.60 barns/electron
U=PE_{Metaheinrichite} x r_electron=4,467.55 barns/cc.

Radioactivity:

GRapi = 3,236,711.53 (Gamma Ray American Petroleum Institute Units)
Concentration of Metaheinrichite per GRapi unit = 308.96 (PPB)

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 ±234.93 grams of pure Metaheinrichite .

**Estimated Radioactivity from Metaheinrichite** - very strong
Specimen Size Weight/Volume (Sphere) *	Calculated Activity Becquerels (Bq)	Calculated Activity Curies (Ci)	Estimated Activity GR(api)	Estimated Exposure (mRem**)/hr If Held in Hand For One Hour
1000 gm / 7.64 cm	77,513,882	2.09E-03	3,236,711.53	1,064.12
100 gm / 3.54 cm	7,751,388	2.09E-04	323,671.15	106.41
10 gm / 1.65 cm	775,139	2.09E-05	32,367.12	10.64
1 gm / 7.64 mm	77,514	2.09E-06	3,236.71	1.06
0.1 gm / 3.54 mm	7,751	2.09E-07	323.67	0.11
0.01 gm / 1.65 mm	775	2.09E-08	32.37	0.01
0.001 gm / 0.76 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 4.29 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:

40.02a.04.02 (40)Hydrated Phosphates, etc

(40.02a)where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++

(40.02a.04)Dana Group

40.02a.04.01 Heinrichite Ba(UO2)2(AsO4)2•10-12(H2O) P 2/c 2/m

40.02a.04.02 Metaheinrichite Ba(UO2)2(AsO4)2•8(H2O) P 2₁ 2

Strunz Class:

08.EB.10 08 - PHOSPHATES, ARSENATES, VANADATES

08.E - Uranyl Phosphates and Arsenates

08.EB -UO2:RO4 = 1:1

08.EB.10 Bassetite Fe(UO2)2(PO4)2•8(H2O) P 2₁/m 2/m

08.EB.10 Lehnerite Mn[UO2/PO4]2•8(H2O) P 2₁/n 2/m

08.EB.10 Metazeunerite Cu(UO2)2(AsO4)2•8(H2O) P 4/n 4/m

08.EB.10 Meta-autunite Ca(UO2)2(PO4)2•2-6(H2O) P 4/nmm 4/m 2/m 2/m

08.EB.10 Metauranocircite Ba(UO2)2(PO4)2•6-8(H2O) P 2₁ 2

08.EB.10 Metauranospinite Ca(UO2)2(AsO4)2•8(H2O) P 4/nmm 4/m 2/m 2/m

08.EB.10 Metaheinrichite Ba(UO2)2(AsO4)2•8(H2O) P 2₁ 2

08.EB.10 Metakahlerite Fe(UO2)2(AsO4)2•8(H2O) P 4/mmm 4/m 2/m 2/m

08.EB.10 Metakirchheimerite Co(UO2)2(AsO4)2•8(H2O) P 4/mmm 4/m 2/m 2/m

08.EB.10 Metalodevite Zn(UO2)2(AsO4)2•10(H2O) P 4₁/m 4/m

08.EB.10 Metanovacekite Mg(UO2)2(AsO4)2•4-8(H2O) P 4/n 4/m

08.EB.10 Metatorbernite Cu(UO2)2(PO4)2•8(H2O) P 4/n 4/m

08.EB.10 Przhevalskite Pb(UO2)2(PO4)2•4(H2O) Unk Tetra

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 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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

Metaheinrichite

Ba(UO2)2(AsO4)2•8(H2O)
Dana No: 40.02a.04.02 Strunz No: 08.EB.10
Locality:

Notes: