Furongite Mineral Data

General Furongite Information

Chemical Formula:

Al2(UO2)(PO4)3(OH)2•8(H2O)

Composition:

Molecular Weight = 787.04 gm

Uranium 30.24 % U 34.31 % UO₂

Aluminum 6.86 % Al 12.96 % Al₂O₃

Phosphorus 11.81 % P 27.05 % P₂O₅

Hydrogen 2.31 % H 20.60 % H₂O

Oxygen 48.79 % O

______ ______

100.00 % 94.92 % = TOTAL OXIDE

Empirical Formula:

Al₂(UO₂)(PO₄)₃(OH)₂•8(H₂O)

Environment:

Oxidation zone of a uranium deposit.

IMA Status:

Approved IMA 1976

Locality:

Undefined locality in western Hunan Province, China. Link to MinDat.org Location Data.

Name Origin:

Named from a poetic name for Hunan Province, China.

Name Pronunciation:

Furongite + Pronunciation

Furongite Image

Images:

Furongite

Comments: Pale yellow crystalline furongite.
Location: Furong Lin, Ling Wu, Western Hunan Province, China. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Furongite Crystallography

Axial Ratios:

a:b:c =1.2602:1:0.8589

Cell Dimensions:

a = 17.87, b = 14.18, c = 12.18, Z = 7; alpha = 67.8°, beta = 77.5°, gamma = 79.9° V = 2,746.61 Den(Calc)= 3.33

Crystal System:

Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 10.2(1), 8.62(0.8), 4.31(0.5),

Physical Properties of Furongite

Cleavage:

{???} Perfect, {???} Perfect, {???} Perfect

Color:

Yellow, Light yellow.

Density:

2.82 - 2.9, Average = 2.86

Diaphaneity:

Translucent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Hardness:

2-3 - Gypsum-Calcite

Luminescence:

Fluorescent, Short UV=strong pale yellow green.

Luster:

Vitreous (Glassy)

Streak:

yellow white

Optical Properties of Furongite

Gladstone-Dale:

CI meas= -0.086 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.059 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1701,KPDmeas= 0.1963,KC= 0.1807
Ncalc = 1.51 - 1.6

Optical Data:

Biaxial (-), a=1.543-1.549, b=1.564-1.567, g=1.57-1.575, bire=0.0260-0.0270

Pleochroism (x):

colorless.

Pleochroism (y):

colorless.

Pleochroism (z):

colorless.

Calculated Properties of Furongite

Electron Density:

Bulk Density (Electron Density)=3.13 gm/cc
note: Specific Gravity of Furongite =3.30 gm/cc.

Fermion Index:

Fermion Index = 0.0024151737
Boson Index = 0.9975848263

Photoelectric:

PE_Furongite= 724.79 barns/electron
U=PE_Furongite x r_electron=2,267.07 barns/cc.

Radioactivity:

GRapi = 2,443,468.10 (Gamma Ray American Petroleum Institute Units)
Concentration of Furongite per GRapi unit = 409.25 (PPB)

Furongite 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) 12.45 ± 3.11 grams of pure Furongite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 1244.8 ±311.20 grams of pure Furongite .

**Estimated Radioactivity from Furongite** - 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 / 8.33 cm	54,135,846	1.46E-03	2,443,468.10	803.33
100 gm / 3.87 cm	5,413,585	1.46E-04	244,346.81	80.33
10 gm / 1.80 cm	541,358	1.46E-05	24,434.68	8.03
1 gm / 8.33 mm	54,136	1.46E-06	2,443.47	0.80
0.1 gm / 3.87 mm	5,414	1.46E-07	244.35	0.08
0.01 gm / 1.80 mm	541	1.46E-08	24.43	0.01
0.001 gm / 0.83 mm	54	1.46E-09	2.44	0.00

Weight of pure Furongite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.30 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

Furongite Classification

Dana Class:

42.11.20.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.11)where (AB)4 (XO4)3 Zq ï¿½ x(H2O)

(42.11.20)Dana Group

42.11.20.01 Furongite Al2(UO2)(PO4)3(OH)2•8(H2O) P1 1

Strunz Class:

08.EB.50 08 - PHOSPHATES, ARSENATES, VANADATES

08.E - Uranyl Phosphates and Arsenates

08.EB -UO2:RO4 = 1:1

08.EB.50 Furongite Al2(UO2)(PO4)3(OH)2•8(H2O) P1 1

Other Furongite Information

References:

NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990;dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Furongite :
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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Furongite

Al2(UO2)(PO4)3(OH)2•8(H2O)
Dana No: 42.11.20.01 Strunz No: 08.EB.50
Locality:

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