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Mineralpedia Details for Sklodowskite

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Sklodowskite

Sklodowskite

Named for Marie Sklodowska-Curie who was a pioneer researcher in the field of radioactivity, along with her husband Pierre. She and her husband coined the term radioactivity and discovered the elements polonium and radium. Additionally Marie Curie is the only person to hold two Nobel Prizes in two different sciences. Sklodoskite is a rare mineral found in just a few localities worldwide as a secondary mineral that forms as a result of silica-rich water on uraninite or other related uranium minerals. Sklodowskite is highly radioactive.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/sklodowskite.pdf

Formula
Mg(UO2)2(SiO3OH)2ยท6H2
Crystal System
Monoclinic 
Crystal Habit
Prismatic 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
greenish yellow, light yellow 
Streak
yellow white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
2-3 
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Sklodowskite from Animas mine, Francisco Portillo, Santa Eulalia dist., Chihuahua, Mexico

Sklodowskite
            from Animas mine, Francisco Portillo, Santa Eulalia dist., Chihuahua, Mexico
Special Info
Phillips Collection

Canary yellow acicular crystals to 4mm, free-standing and as inclusions within the selenite Gypsum.

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Sklodowskite from Musonoi mine, Kolwezi, Shaba Cu belt, Democratic Republic of Congo

Sklodowskite
            from Musonoi mine, Kolwezi, Shaba Cu belt, Democratic Republic of Congo
Special Info
Radioactive!!

Bright yellow, bladed crystals to about 1mm lining cavaties with bright green Malachite. Excellent specimen for the secondary uranium collector.

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Sklodowskite from Katanga, Democratic Republic of Congo

Sklodowskite
            from Katanga, Democratic Republic of Congo
Special Info
Radioactive!!

Bright yellow radial crystals to 1mm.

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Sklodowskite from Spider Claim, Honeycomb Hills, Juab Co., Utah, United States

Sklodowskite
            from Spider Claim, Honeycomb Hills, Juab Co., Utah, United States
Special Info
Radioactive!!

Larger specimen with yellow acicular crystal groups of Sklodowskite with yellow noncrystalline Soddyite in sandstone matrix. Radioactive of course. Ex. Charles Lewis collection with tag (see prov. tab)

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