Felsobanyite is a rare mineral that belongs to the carbonate mineral group. It is categorized as a hydrous zinc carbonate and is composed of zinc, carbon, oxygen, and water molecules. The mineral has a chemical formula of Zn2(CO3)(OH)2 and a molecular weight of approximately 213.33 grams per mole.
Felsobanyite typically occurs as small, transparent to translucent crystals, which are often colorless but can also exhibit pale shades of yellow, green, or blue. The mineral usually crystallizes in a rhombohedral crystal system, forming hexagonal-shaped crystals. It is characterized by a vitreous to pearly luster on its surfaces.
The name "felsobanyite" is derived from the location Felsőbánya (Upper Bánya) in Hungary, where the mineral was first discovered in the mid-20th century. It is primarily found in hydrothermal ore deposits associated with zinc and other metallic ores. Felsobanyite is considered a rare mineral, and its occurrences are limited to a few localities worldwide.
From a geological perspective, felsobanyite holds significance as a secondary mineral formed through the weathering and alteration of primary zinc minerals. It is often found alongside other zinc-bearing minerals such as smithsonite, cerrusite, hydrozincite, and zincite.
Felsobanyite's scarcity and aesthetic appeal make it a sought-after collector's item among mineral enthusiasts. Due to its limited availability and lack of commercial significance, felsobanyite is primarily valued for its rarity and beauty rather than its utilitarian applications.
