Mineralogy Database

Sabugalite Mineral Data

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General Sabugalite Information

Help on Chemical  Formula: Chemical Formula: HAl(UO2)4(PO4)4•16(H2O)
Help on Composition: 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
Help on Empirical Formula: Empirical Formula: HAl(UO2)4(PO4)4•16(H2O)
Help on Environment: Environment: Secondary mineral formed in the oxidized zone of uranium veins.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1951
Help on Locality: Locality: Quarta Feira mine, Portugal Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Name for Sabugal Co., Portugal, in which the mineral was first found.
Help on Name Pronunciation: Name Pronunciation: Sabugalite + Pronunciation Say SABUGALITE
 

Sabugalite Image

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  Sabugalite

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

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  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

Help on Axial Ratios: Axial Ratios: a:c = 1:2.77298
Help on Cell Dimensions: Cell Dimensions: a = 6.96, c = 19.3, Z = 1; V = 934.92 Den(Calc)= 3.15
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: I 4/mmm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 9.69(1), 4.86(0.9), 3.47(0.8),
 

Physical Properties of Sabugalite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Light yellow, Lemon.
Help on Density: Density: 3.2
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luminescence: Luminescence: Fluorescent, Short UV=lemon-yellow, Long UV=lemon-yellow.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: yellow white
 

Optical Properties of Sabugalite

Help on Gladstone-Dale: 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
Ncalc = 1.48 - 1.49
Help on Optical Data: Optical Data: Biaxial (-), a=1.564, b=1.581, g=1.582, bire=0.0180
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
Help on Pleochroism (z): Pleochroism (z): colorless.
 

Calculated Properties of Sabugalite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.86 gm/cc
note: Specific Gravity of Sabugalite =3.20 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0040351808
Boson Index = 0.9959648192
Help on Photoelectric: Photoelectric: PESabugalite =1,360.75 barns/electron
U=PESabugalite x relectron=3,892.95 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 4,084,843.40 (Gamma Ray American Petroleum Institute Units)
Concentration of Sabugalite per GRapi unit = 244.81 (PPB)

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 95,949,664 2.59E-03 4,084,843.40 1,342.96
100 gm / 3.91 cm 9,594,966 2.59E-04 408,484.34 134.30
10 gm / 1.81 cm 959,497 2.59E-05 40,848.43 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

Help on  Dana Class: Dana Class: 40.02a.24.01 (40)Hydrated Phosphates, etc
  (40.02a)where A++ (B++)2 (XO4) � x(H2O), containing (UO2)++
  (40.02a.24)Dana Group
 
40.02a.24.01 Sabugalite HAl(UO2)4(PO4)4•16(H2O) I 4/mmm 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 08.EB.55 08 - PHOSPHATES, ARSENATES, VANADATES
  08.E - Uranyl Phosphates and Arsenates
  08.EB -UO2:RO4 = 1:1
 
08.EB.55 Sabugalite HAl(UO2)4(PO4)4•16(H2O) I 4/mmm 4/m 2/m 2/m
 

Other Sabugalite Information

Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Sabugalite :
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 Sabugalite Specimen Label here :

Sabugalite

HAl(UO2)4(PO4)4•16(H2O)
Dana No: 40.02a.24.01 Strunz No: 08.EB.55
Locality:

 

Notes:

 

 
   
 


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