Heinrichite Mineral Data

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General Heinrichite Information

Chemical Formula:

Ba(UO2)2(AsO4)2•10-12(H2O)

Composition:

Molecular Weight = 1,153.39 gm

Barium 11.91 % Ba 13.29 % BaO

Uranium 41.27 % U 46.82 % UO₂

Arsenic 12.99 % As 19.93 % As₂O₅

Hydrogen 1.92 % H 17.18 % H₂O

Oxygen 31.90 % O

______ ______

100.00 % 97.23 % = TOTAL OXIDE

Empirical Formula:

Ba(UO₂)₂(AsO₄)₂•11(H₂O)

Environment:

Found on fracture coatings in slilicified rhyolite tuff. Readily dehydrates to meta-heinrichite.

IMA Status:

Valid Species (Pre-IMA) 1958

Locality:

White King mine, 22 km N.W. of Lakeview, Lake County, Oregon, USA. Link to MinDat.org Location Data.

Name Origin:

Named for Eberhardt William Heinrich (1918-1991), mineralogist, University of Michigan, Ann Arbor, MI, USA.

Name Pronunciation:

Heinrichite + Pronunciation

Heinrichite Image

Images:

Heinrichite

Comments: Pale greenish-yellow crystalline heinrichite crusts on clay.
Location: Lakeview, Lake County, Oregon, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Heinrichite Crystallography

Axial Ratios:

a:b:c =1.0029:1:2.9843

Cell Dimensions:

a = 7.155, b = 7.134, c = 21.29, Z = 2; beta = 104.171° V = 1,053.65 Den(Calc)= 3.64

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2/c

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

By Intensity(I/I_o): 3.57(1), 5.03(0.8), 8.89(0.8),

Crystal Structure:

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drag2 - RMB Resize/Rotate
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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

Physical Properties of Heinrichite

Cleavage:

{001} Perfect, {100} Distinct

Color:

Green, Yellow, Yellow green.

Density:

3.61

Diaphaneity:

Transparent to Translucent

Habit:

Scaly - Morphology like fish scales.

Hardness:

2.5 - Finger Nail

Luminescence:

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

Luster:

Vitreous - Pearly

Streak:

yellow white

Optical Properties of Heinrichite

Dichroism (e):

colorless.

Dichroism (w):

colorless.

Gladstone-Dale:

CI meas= -0.056 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.047 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1618,KPDmeas= 0.1632,KC= 0.1545
Ncalc = 1.56

Optical Data:

Uniaxial (-), e=1.573, w=1.605, bire=0.0320.

Calculated Properties of Heinrichite

Electron Density:

Bulk Density (Electron Density)=3.23 gm/cc
note: Specific Gravity of Heinrichite =3.64 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Heinrichite=1,118.03 barns/electron
U=PE_Heinrichite x r_electron=3,613.09 barns/cc.

Radioactivity:

GRapi = 3,123,502.50 (Gamma Ray American Petroleum Institute Units)
Concentration of Heinrichite per GRapi unit = 320.15 (PPB)

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 / 8.07 cm	73,881,713	2.00E-03	3,123,502.50	1,026.90
100 gm / 3.74 cm	7,388,171	2.00E-04	312,350.25	102.69
10 gm / 1.74 cm	738,817	2.00E-05	31,235.03	10.27
1 gm / 8.07 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 / 1.74 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 3.64 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

Heinrichite Classification

Dana Class:

40.02a.04.01 (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.05 08 - PHOSPHATES, ARSENATES, VANADATES

08.E - Uranyl Phosphates and Arsenates

08.EB -UO2:RO4 = 1:1

08.EB.05 Autunite Ca(UO2)2(PO4)2•10-12(H2O) I 4/mmm 4/m 2/m 2/m

08.EB.05 Heinrichite Ba(UO2)2(AsO4)2•10-12(H2O) P 2/c 2/m

08.EB.05 Kahlerite Fe(UO2)2(AsO4)2•10-12(H2O) P 4₁/n 4/m

08.EB.05 Uranocircite Ba(UO2)2(PO4)2•12(H2O) P 4/nnc 4/m 2/m 2/m

08.EB.05 Novacekite Mg(UO2)2(AsO4)2•12(H2O) P 4₁/n 4/m

08.EB.05 Saleeite Mg(UO2)2(PO4)2•10(H2O) I 4/mmm 4/m 2/m 2/m

08.EB.05 Xiangjiangite (Fe,Al)(UO2)4(PO4)2(SO4)2(OH)•22(H2O) C 2/c or Cc Mono

08.EB.05 Torbernite Cu(UO2)2(PO4)2•8-12(H2O) I 4/mmm 4/m 2/m 2/m

08.EB.05 Uranospinite Ca(UO2)2(AsO4)2•10(H2O) P nma 2/m 2/m 2/m

08.EB.05 Zeunerite Cu(UO2)2(AsO4)2•10-16(H2O) P 4/nnc 4/m 2/m 2/m

08.EB.05 Metarauchite! Ni(UO2)2(AsO4)2•8H2O P1 1

Other Heinrichite 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 Heinrichite :
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
15 - Uranium Minerals

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

Heinrichite

Ba(UO2)2(AsO4)2•10-12(H2O)
Dana No: 40.02a.04.01 Strunz No: 08.EB.05
Locality:

Notes: