Sabugalite Mineral Data

Sabugalite Mineral Data +

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General Sabugalite Information

Chemical Formula:

HAl(UO2)4(PO4)4·16(H2O)

Composition:

Molecular Weight = 1,776.23 gm

Uranium 53.60 % U 60.81 % UO₂

Aluminum 1.52 % Al 2.87 % Al₂O₃

Phosphorus 6.98 % P 15.98 % P₂O₅

Hydrogen 1.87 % H 16.73 % H₂O

Oxygen 36.03 % O

______ ______

100.00 % 96.40 % = TOTAL OXIDE

Empirical Formula:

HAl(UO₂)₄(PO₄)₄·16(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1951

Locality:

Link to MinDat.org Location Data.

Sabugalite Image

Images:

Sabugalite

Comments: Platy sabugalite crystals.
Location: Margnac, Haute-Vienne, France. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Images:

Sabugalite

Comments: Squarish, platy, pale yellowish green sabugalite crystals.
Location: Sabugal County, Beira Alta Province, Portugal. Scale: Picture size 3 mm.
© Paul M. Schumacher

Sabugalite Crystallography

Axial Ratios:

a:c = 1:2.77298

Cell Dimensions:

a = 6.96, c = 19.3, Z = 1; V = 934.92 Den(Calc)= 3.15

Crystal System:

Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 4/mmm

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

By Intensity(I/I_o): 9.69(1), 4.86(0.9), 3.47(0.8),

Physical Properties of Sabugalite

Cleavage:

[001] Perfect

Color:

Light yellow, Lemon.

Density:

3.2

Diaphaniety:

Transparent to Translucent

Hardness:

2.5 - Finger Nail

Luminescence:

Fluorescent.

Luster:

Vitreous (Glassy)

Streak:

yellow white

Optical Properties of Sabugalite

Gladstone-Dale:

CI meas= -0.177 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.195 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1828,KPDmeas= 0.1799,KC= 0.1529

Optical Data:

Biaxial (-), a=1.564, b=1.581, g=1.582, bire=0.0180

Pleochroism (x):

colorless.

Pleochroism (y):

colorless.

Pleochroism (z):

colorless.

Calculated Properties of Sabugalite

Electron Density:

r_electron=2.86 gm/cc
note: r_Sabugalite=3.20 gm/cc.

Fermion Index

Fermion Index = 0.00403
Boson Index = 0.99597

Photoelectric:

PE_Sabugalite=1,360.75 barns/electron
U=PE_Sabugalite x r_electron=3,892.95 barns/cc.

Radioactivity:

GRapi = 4,084,841.36 (Gamma Ray American Petroleum Institute Units)

Sabugalite 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) 7.45 ± 1.86 grams of pure Sabugalite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 744.62 ±186.16 grams of pure Sabugalite .

**Estimated Radioactivity from Sabugalite** - 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 / 8.42 cm	95,949,656	2.59E-03	4,084,841.36	1,342.96
100 gm / 3.91 cm	9,594,966	2.59E-04	408,484.14	134.30
10 gm / 1.81 cm	959,497	2.59E-05	40,848.41	13.43
1 gm / 8.42 mm	95,950	2.59E-06	4,084.84	1.34
0.1 gm / 3.91 mm	9,595	2.59E-07	408.48	0.13
0.01 gm / 1.81 mm	959	2.59E-08	40.85	0.01
0.001 gm / 0.84 mm	96	2.59E-09	4.08	0.00

Weight of pure Sabugalite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.20 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

Sabugalite Classification

Dana Class:

40.2a.24.1 (40)Hydrated Phosphates, etc

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

(40.2a.24)Dana Group

40.2a.24.1 Sabugalite HAl(UO2)4(PO4)4·16(H2O) I 4/mmm 4/m 2/m 2/m

Strunz Class:

VII/E.01-20 VII - Phosphates, Arsenates and Vanadates

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

VII/E.01 - Autunite group

VII/E.01-10 Trogerite H2(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m

VII/E.01-20 Sabugalite HAl(UO2)4(PO4)4·16(H2O) I 4/mmm 4/m 2/m 2/m

VII/E.01-30 Saleeite Mg(UO2)2(PO4)2·10(H2O) I 4/mmm 4/m 2/m 2/m

VII/E.01-35 Seelite-1 Mg[(UO2)(AsO3)x(AsO4)1-x]2·7(H2O) C 2/m 2/m

VII/E.01-35* Seelite-2 Mg(UO2)(AsO3)x(AsO4)1-x·7(H2O)(x=0.7) C 2/m 2/m

VII/E.01-40 Novacekite Mg(UO2)2(AsO4)2·12(H2O) P 4₁/n 4/m

VII/E.01-50 Kahlerite Fe(UO2)2(AsO4)2·10-12(H2O) P 4₁/n 4/m

VII/E.01-60 Fritzscheite Mn(UO2)2[(V,P)O4]2·4(H2O) Pnam 2/m 2/m 2/m

VII/E.01-70 Torbernite Cu(UO2)2(PO4)2·8-12(H2O) I 4/mmm 4/m 2/m 2/m

VII/E.01-80 Zeunerite Cu(UO2)2(AsO4)2·10-16(H2O) P 4/nnc 4/m 2/m 2/m

VII/E.01-90 Autunite Ca(UO2)2(PO4)2·10-12(H2O) I 4/mmm 4/m 2/m 2/m

VII/E.01-100 Uranospinite Ca(UO2)2(AsO4)2·10(H2O) I 4/mmm 4/m 2/m 2/m

VII/E.01-110 Uranocircite Ba(UO2)2(PO4)2·12(H2O) P 4/nnc 4/m 2/m 2/m

VII/E.01-120 Heinrichite Ba(UO2)2(AsO4)2·10-12(H2O) IA/mmm 4/m 2/m 2/m

VII/E.01-130 Sodium-autunite Na2(UO2)2(PO4)2·8(H2O) P 4/nmm 4/m 2/m 2/m

Other Sabugalite Information

References:

PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

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

Sabugalite

HAl(UO2)4(PO4)4·16(H2O)
Dana No: 40.2a.24.1 Strunz No: VII/E.01-20
Locality:

Notes: