Cuprosklodowskite	IMA-GP
Uranium	53.3.1.4 (Dana Classification Number)
(Images)	8/B.34-20 (Strunz ID)

Madam Marie Curie (1867-1934) 1903 Nobel Laureate in Physics 1911 Nobel Laureate in Chemistry

Property	Data	Remarks
Named for:	in the mistaken belief that it was the copper analogue of Sklodowskite, which in turn was named for Marie Curie (née Maria Sklodowska), (1867 - 1934), 1903 Nobel Laureate in Physics, and 1911 Nobel Laureate in Chemistry.
Alternate     Name(s):
Mineral Class:	Silicates   NesosilicatesNesosilicates "Insel" silicates with anions unfamiliar to tetraheders. Uranyl-"Insel" silicates with [UO2]2+ - [SiO4]4-     Sklodowskite - Uranophane - Kasolite series
Chemical     Formula:	Cu(UO2)2Si2O7 . 6H2O
Chemical     Composition:	Copper: (Cu) 7.37% Hydrogen: (H) 1.17% Oxygen: (O) 29.70% Silicon: (Si) 6.52% Uranium: (U) 55.24%	by weight
Molecular     Weight:	861.84	daltons (amu)
Specific     Radioactivity:	(All radiation is for a 1 gram, fully aged specimen) Specific Activity Dose Rate Becquerels Curies milliRems/hour microSieverts/hour 9.8874 × 1004 2.67 × 10-06 1.36 136.14 Estimated Average Annual Exposure: 360 mRem (3.6 milliSieverts)
Crystalography:	System: Triclinic - Pinacoidal Axial Ratios: a: 0.7609 b: 1 c: 0.7181 Cell Dimensions: a: 7.052 Å b: 9.267 Å c: 6.655 Å Z: 1 a: 109.23° b: 89.84° g: 110.01° V: 385.85 Å3 DenCalc: 3.71 H-M Symbol: -1 Space Group: P-1 X-Ray Diffraction:   By Intensity ( I/Io ) (1): 8.16 Å (0.9): 4.82 Å (0.7): 6.06 Å	Cuprosklodowskite Crystal
Habit:	Acicular flat bladed crystals (typical) Crusts Fibrous tufts Radial aggregates
Cleavage:	[001]   [010]   [100] Good
Fracture:	Uneven
Moh's     Hardness:	4
Density:	3.8	grams/cm3
Color:	Grass green to dark green
Streak:	Greenish yellow to light Green
Luster:	Vitreous to Silky
Diaphaneity:	Transparent to Translucent
Pleochroism:	(x):   (y:)   (z:)
Ultra Violet     Fluorescence:	None (Expected to be non-fluorescent due to copper being a common fluorescence 'poison')	(two Specimens Examined)
Magnetism:	Non-magnetic
Occurance:	Formed from the oxidation of copper and uranium bearing minerals.
Associated     Minerals:	Autunite, Barite, Becquerelite, Bornite, Brochantite, Calcite, Chalcocite, Chalcopyrite, Chrysocolla, Covellite, Curite, Dolomite, Galena, Goethite, Hematite, Kasolite, Malachite, Metatorbernite, Metazeunerite, Pyrite, Quartz, Schoepite, Sklodowskite, Soddyite, Sphalerite, Torbernite, Tyuyamunite, Uraninite, Uranophane, Uranopilite, Zippeite Mineral   -   > 65% of sites Mineral   -   > 50% of sites Mineral   -   > 31% of sites Minerals   -   Uranium & Thorium mineral links	These are minerals known to be found with Cuprosklodoskite
Localities:	Relatively common Cuprosklodoskite Localities
Notes:	Strongly radioactive a- and b-particles, g-rays. Crystals are probably metamict.

Cuprosklodowskite Images

Specimen #1
(001)	(001a)	(001b)	(001c)
Kambove (Kakanda) Mine, Katanga District, Shaba (Katanga), Congo (Zaïre)
Specimen Notes This specimen shows the radial clusters of Cuprosklodowskite so closely intergrown that they form a tangle of crystals. This is not unusual for Cuprosklodowskite that has grown in a vug. See the notes for specimen #3 below.
Specimen #4
(004a)	(004b)	(004c)	(004d)
(with Metatyuyamunite)	(with Metatyuyamunite)
(004e)
Mashamba West Mine, Kolwezi, Shaba (Katanga), Congo (Zaïre)
Specimen #4 Notes This specimen is primarily Metatyuyamunite, but has a minimum of eight uranium minerals on its surface. See Metatorbernite Specimen #2 for detailed notes on this specimen. Image 004a shows the Cuprosklodowskite's habit of forming bladed crystals. Image 004b shows the terminations are both single and double beveled chissel shaped. Image 004c shows the habit of the crystals forming radial clusters. While visable in the other images, this one illustrates this habit quite graphically. Images 004d and 004e show how the crystals grow primarilly from the end. When the crystal encounters an obstacle, its growth is stopped, while that portion of the crystal not blocked continues to grow.