Bonacinaite
Bonacinaite is a rare hydrated arsenate mineral with the chemical formula scandium arsenate dihydrate. It belongs to the monoclinic crystal system and is classified under the Strunz classification as 8.CD.05. This mineral is notable for its unique composition, incorporating the rare earth element scandium. It typically exhibits a vitreous luster and is colorless or pale in appearance. With a relatively low hardness and moderate density, bonacinaite is of interest primarily to mineral collectors and researchers due to its unusual chemical makeup and rarity.
Composition
- OOxygen43.7%
- AsArsenic34.1%
- ScScandium20.4%
- HHydrogen1.8%
Overview
Bonacinaite is a rare hydrated arsenate mineral with the chemical formula scandium arsenate dihydrate. It belongs to the monoclinic crystal system and is classified under the Strunz classification as 8.CD.05. This mineral is notable for its unique composition, incorporating the rare earth element scandium. It typically exhibits a vitreous luster and is colorless or pale in appearance. With a relatively low hardness and moderate density, bonacinaite is of interest primarily to mineral collectors and researchers due to its unusual chemical makeup and rarity.
Etymology
Bonacinaite is named after Enrico Bonacina, in recognition of his contributions to mineralogy. The mineral was approved by the International Mineralogical Association (IMA).
How to recognize it
Bonacinaite can be identified through its monoclinic crystal system and its chemical composition, which includes scandium and arsenate. It has a vitreous luster and is typically colorless or pale. Due to its rarity, it is not commonly used for practical identification tests, but its unique chemical composition can be verified through laboratory analysis.
Trivia
Bonacinaite is notable for its inclusion of the rare element scandium, which is uncommon in mineral species. It is one of the few known minerals to contain both scandium and arsenate in its structure. Additionally, its hydration (containing water molecules) adds to its chemical uniqueness. The mineral's name honors Enrico Bonacina, highlighting the personal recognition in mineral nomenclature.