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Sklodowskite on Gypsum
Sklodowskite on Gypsum
Sklodowskite on Gypsum
Sklodowskite on Gypsum
Sklodowskite on Gypsum
Sklodowskite on Gypsum

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Sklodowskite on Gypsum

Origin: Mina Las Animas (Santa Eulalia, Chihuahua, Mexico)

The Mina Las Animas in the Santa Eulalia district of Chihuahua is a classic locality long known for its rich polymetallic deposits and striking secondary uranium minerals. Within the oxidized zones of this mine, sklodowskite is found forming delicate yellow to yellow-green acicular sprays coating and embedded in transparent gypsum, particularly selenite crystals. These associations produce visually striking specimens in which the vivid uranium mineral contrasts sharply with the clear or white gypsum, making them highly valued by collectors.

Sklodowskite on Gypsum

Sklodowskite is a hydrated uranium silicate mineral with the formula Mg(UO₂)₂(SiO₃OH)₂·6H₂O. It crystallizes in the monoclinic system and typically forms fine fibrous or acicular crystals in radiating groups. Its color ranges from bright yellow to greenish yellow, with silky to vitreous luster, and it is strongly radioactive. When occurring on gypsum, sklodowskite provides a dramatic visual pairing of transparent host crystal and vibrant uranium mineralization.