$125Median
4Sold (12 mo)
$95Last sale
Kaolinite specimens for sale
6 for sale · $140–$8,500 USD
14 in the gallery
Kaolinite is a clay mineral, a hydrated aluminum silicate with the formula Al2Si2O5(OH)4. It commonly forms soft, white to cream-colored masses or platey crystals and exhibits a dull to earthy luster. In hand samples it often presents a fine-grained, earthy appearance, while powdered forms reveal its characteristic white appearance. Habitally, kaolinite occurs as platy to foliated aggregates and can be intergrown with other clay minerals in altered rocks and sediments.
- Formula
- Al2(Si2O5)(OH)4
- Rarity
- Abundant
- Stability
- Stable
- Collector interest
- Moderate Interest
- Classification notes
- Phyllosilicate; Kaolinite group
Buy Kaolinite specimens
View all 6Where Kaolinite is found
Top localities
- Cornwall2 specimens
- Schneckenstein2 specimens
- Western Australia2 specimens
- Ireland1 specimen
- Mexico1 specimen
- England1 specimen
- Goonbarrow China Clay Pit1 specimen
- Luxulyan1 specimen
- Ouro Preto1 specimen
- Moina Quarry1 specimen
About Kaolinite
Notable specimens come from classic localities around the world, reflecting its widespread formation during chemical weathering and hydrothermal processes. Collectors prize kaolinite-rich specimens when they display clean, well-formed microcrystals or occur in association with other minerals such as quartz or muscovite from famous producing regions. Its easy cleavage and soft feel make high-quality, visually appealing specimens attainable, while the diversity of textures from nodular masses to fibrous or microcrystalline forms offers variety for display and study.
