$188Median
2Sold (12 mo)
$280Last sale
Gibbsite specimens for sale
3 for sale · $210–$265 USD
6 in the gallery
Gibbsite is a hydroxide mineral with the chemical composition Al(OH)3. It typically forms as tabular or plate-like crystals or masses that are often white to colorless, sometimes slightly grey or peach-tinted, and it exhibits a soft to adamantine to dull luster in exposed surfaces. In many specimens it occurs as fibrous or massive aggregates within bauxite, lateritic residues, and hydrothermal alteration zones, where its formation accompanies the weathering of aluminum-bearing minerals. Collectors seek clean, platy crystals and well-defined blades or rosettes that display good transparency and a crisp white hue, especially when contrasted against matrix minerals.
- Formula
- Al(OH)3
- Rarity
- Abundant
- Stability
- Moderately Stable
- Collector interest
- Moderate Interest
Buy Gibbsite specimens
View all 3Where Gibbsite is found
Top localities
- Adelaide Mine2 specimens
- Kamariza Mines1 specimen
- Qinglong Mine1 specimen
- Sacramento mine1 specimen
- Wenshan1 specimen
- Crystal Zone1 specimen
About Gibbsite
Notable localities for Gibbsite include China, Australia, the United States, and Greece, where specimens have been described from bauxite deposits and altered igneous or sedimentary rocks. Specimens from these regions can reveal well-formed tabular crystals, sometimes with a glassy to silky surface sheen on freshly broken faces. Gibbsite is appreciated for its deceptively simple morphology and its role as a primary constituent in bauxite, offering a straightforward mineralogical snapshot that appeals to collectors focused on mineral habits and regional occurrence.
