Avogadrite is a mineral that was named after the Italian chemist Amedeo Avogadro. It is spelled "əˈvɒɡədraɪt" in IPA phonetic transcription. The "a" in "avo" is pronounced like the "a" in "father", while the "e" in "gadro" is pronounced like the "e" in "pet". The "i" in "ite" is pronounced like the "i" in "kite". The stress is on the second syllable, which is pronounced with a long "o" sound. Remembering the IPA transcription can be helpful for accurately spelling and pronouncing scientific terms.
Avogadrite is a mineral that belongs to the carbonate mineral group. Its chemical formula is K2(UO2)(CO3)3·4H2O, indicating that it contains potassium (K), uranium dioxide (UO2), carbonate (CO3), and water molecules (H2O). The name "avogadrite" is derived from the renowned Italian scientist Amedeo Avogadro, known for his contributions to molecular theory and Avogadro's law.
Avogadrite is typically found in the form of greenish-yellow to yellow crystals, which can be transparent or translucent. It is an uncommon mineral found in uranium-bearing deposits, often in association with other uranium minerals such as uraninite or carnotite. This mineral commonly forms in oxidized zones of uranium deposits, where the weathering and alteration of primary uranium minerals occur.
In terms of physical properties, avogadrite has a moderate hardness, ranging between 3 and 4 on the Mohs scale. Its specific gravity typically falls around 3.20, suggesting a relatively dense mineral. Avogadrite also exhibits fluorescence under ultraviolet light, emitting a yellowish-green glow.
Despite being a minor source of uranium, avogadrite does not possess any major industrial applications. Instead, it mainly serves as an intriguing specimen for mineral collectors and researchers due to its unique composition and occurrence. Its connection to the renowned chemist Amedeo Avogadro further contributes to its significance in the mineralogical world.