Kamitugaite Mineral Data

General Kamitugaite Information

Chemical Formula:

PbAl(UO2)5(PO4)2(OH)9•9.5(H2O)

Composition:

Molecular Weight = 2,098.47 gm

Uranium 56.71 % U 64.34 % UO₂

Aluminum 1.29 % Al 2.43 % Al₂O₃

Phosphorus 2.95 % P 6.76 % P₂O₅

Hydrogen 1.34 % H 12.02 % H₂O

Lead 9.87 % Pb 10.64 % PbO

Oxygen 27.83 % O

______ ______

100.00 % 96.19 % = TOTAL OXIDE

Empirical Formula:

PbAl(UO₂)₅(PO₄)₂(OH)₉•9.5(H₂O)

IMA Status:

Approved IMA 1984

Locality:

Kobokobo, Kivu, Zaire. Link to MinDat.org Location Data.

Name Origin:

Named for the mining district at the locality.

Name Pronunciation:

Kamitugaite + Pronunciation

Kamitugaite Image

Images:

Kamitugaite

Comments: Yellow crystalline kamitugaite on matrix.
Location: Kobokobo pegmatite, Lusungu River District, Sud-Kivu, Democratic Republic of Congo (Zaïre). Scale: Picture Size 0.7 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Kamitugaite Crystallography

Axial Ratios:

a:b:c =0.6879:1:0.5681

Cell Dimensions:

a = 10.98, b = 15.96, c = 9.068, Z = 2; alpha = 95.1°, beta = 96.1°, gamma = 80° V = 1,549.92 Den(Calc)= 4.50

Crystal System:

TriclinicSpace Group: P1,P 1

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

By Intensity(I/I_o): 7.95(1), 3.972(0.8), 3.271(0.4),

Physical Properties of Kamitugaite

Cleavage:

{010} Perfect, {001} Perfect

Color:

Yellow.

Density:

4.03

Diaphaneity:

Transparent

Habit:

Platy - Sheet forms (e.g. micas).

Hardness:

2-3 - Gypsum-Calcite

Luminescence:

Non-fluorescent.

Streak:

yellow white

Optical Properties of Kamitugaite

Gladstone-Dale:

CI meas= -0.323 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.188 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1624,KPDmeas= 0.181,KC= 0.1368
Ncalc = 1.55 - 1.61

Optical Data:

Biaxial (-), a=1.709, b=1.735, g=1.744, bire=0.0350, 2V(Calc)=60, 2V(Meas)=60.

Pleochroism (x):

light yellow.

Pleochroism (y):

light yellow.

Pleochroism (z):

yellowish green.

Calculated Properties of Kamitugaite

Electron Density:

Bulk Density (Electron Density)=3.87 gm/cc
note: Specific Gravity of Kamitugaite =4.49 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Kamitugaite=1,667.76 barns/electron
U=PE_Kamitugaite x r_electron=6,458.85 barns/cc.

Radioactivity:

GRapi = 4,169,700.18 (Gamma Ray American Petroleum Institute Units)
Concentration of Kamitugaite per GRapi unit = 239.83 (PPB)

Kamitugaite 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) 7.29 ± 1.82 grams of pure Kamitugaite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 729.47 ±182.37 grams of pure Kamitugaite .

**Estimated Radioactivity from Kamitugaite** - 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 / 7.52 cm	101,519,422	2.74E-03	4,169,700.18	1,370.86
100 gm / 3.49 cm	10,151,942	2.74E-04	416,970.02	137.09
10 gm / 1.62 cm	1,015,194	2.74E-05	41,697.00	13.71
1 gm / 7.52 mm	101,519	2.74E-06	4,169.70	1.37
0.1 gm / 3.49 mm	10,152	2.74E-07	416.97	0.14
0.01 gm / 1.62 mm	1,015	2.74E-08	41.70	0.01
0.001 gm / 0.75 mm	102	2.74E-09	4.17	0.00

Weight of pure Kamitugaite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.49 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

Kamitugaite Classification

Dana Class:

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

(42.13)Dana Type

(42.13.11)Dana Group

42.13.11.01 Kamitugaite PbAl(UO2)5(PO4)2(OH)9•9.5(H2O) P1,P 1 Tri

Strunz Class:

08.ED.15 08 - PHOSPHATES, ARSENATES, VANADATES

08.E - Uranyl Phosphates and Arsenates

08.ED -Unclassified

08.ED.15 Kamitugaite PbAl(UO2)5(PO4)2(OH)9•9.5(H2O) P1,P 1 Tri

Other Kamitugaite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Kamitugaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
13 - Uranium Minerals

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Ask about Kamitugaite here :
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Print or Cut-and-Paste your Kamitugaite Specimen Label here :

Kamitugaite

PbAl(UO2)5(PO4)2(OH)9•9.5(H2O)
Dana No: 42.13.11.01 Strunz No: 08.ED.15
Locality:

Notes: