Wickenburgite
Wickenburgite is a rare mineral with the chemical formula calcium lead aluminum silicate hydroxide. It belongs to the trigonal crystal system and is classified under the Strunz system as 9.EG.55 and the Dana system as 74.2.1.1. The mineral is typically characterized by its moderate hardness, though exact values are not commonly specified, and it exhibits a density typical of silicate minerals with lead content. Wickenburgite has a vitreous luster and may display a range of colors depending on impurities. It is a complex silicate and is considered part of a broader group of minerals with similar structural features.
Composition
- PbLead41.9%
- OOxygen32.4%
- SiSilicon18.9%
- AlAluminium3.6%
- CaCalcium2.7%
- HHydrogen0.4%
Overview
Wickenburgite is a rare mineral with the chemical formula calcium lead aluminum silicate hydroxide. It belongs to the trigonal crystal system and is classified under the Strunz system as 9.EG.55 and the Dana system as 74.2.1.1. The mineral is typically characterized by its moderate hardness, though exact values are not commonly specified, and it exhibits a density typical of silicate minerals with lead content. Wickenburgite has a vitreous luster and may display a range of colors depending on impurities. It is a complex silicate and is considered part of a broader group of minerals with similar structural features.
Etymology
Wickenburgite is named after Wickenburg, a location associated with its discovery. The mineral was officially recognized by the International Mineralogical Association (IMA) as an approved species.
How to recognize it
Wickenburgite can be identified through its trigonal crystal system and characteristic chemical composition. Its hardness is not precisely defined in the given facts, but it can be tested using the Mohs scale for comparison. The mineral's color and luster may aid in identification, though it is not commonly confused with other species due to its rarity and unique composition. A streak test and density check may also help in distinguishing it from similar minerals.
Trivia
Wickenburgite is notable for its complex chemical formula, which includes calcium, lead, aluminum, and silicon in a unique combination. Its trigonal crystal system is relatively uncommon among silicate minerals. The mineral is also rare, with only a few known occurrences, making it a subject of interest for mineral collectors and researchers.