adelite
/ˈadɪlʌɪt/ /ˈad(ə)lʌɪt/Mineralogy
noun
A rare arsenic-containing mineral which occurs as colourless to grey or green elongated crystals, often in polycrystalline masses.
- Adelite is a basic arsenate of calcium and magnesium, CaMg(AsO4)OH. Crystal system: orthorhombic..
Origin
Late 19th century; earliest use found in American Naturalist. From Swedish adelit from ancient Greek ἄδηλος indistinct + Swedish -it.
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