Clay minerals are hydrous aluminium phyllosilicates (e.g. kaolin, Al 2 Si 2 O 5 (OH) 4), sometimes with variable amounts of iron, magnesium, alkali metals, alkaline earths, and other cations found on or near some planetary surfaces.

2025年2月17日 · Clay mineral, any of a group of important hydrous aluminum silicates with a layer (sheetlike) structure and very small particle size. They may contain significant amounts of iron, alkali metals, or alkaline earths.

2023年5月1日 · Some of the most common clay minerals include kaolinite, smectite, illite, and chlorite. One of the unique properties of clay minerals is their ability to adsorb and exchange ions, which makes them important for various industrial and environmental applications.

2023年11月24日 · Clay minerals typically only exist as very tiny crystals, so most true clays also conform to the fine-grained meaning of the word “clay”. A clay mineral is a finely crystalline sheet silicate with hydroxyl ions, and in some cases with water as part of the structure.

Clay minerals refer to phyllosilicate minerals that exhibit plasticity in clay and harden when dried or fired. Their unique properties are partly attributed to their small particle size and high surface area.

2021年6月24日 · Clay minerals such as kaolinite, smectite, chlorite, micas are main components of raw materials of clay and formed in presence of water. A large number of clays used to form the different structure which completely depends on their mining source.

Illite - also includes glauconite (a green clay sand) and are the commonest clay minerals; formed by the decomposition of some micas and feldspars; predominant in marine clays and shales. Clays mostly form on land but are often transported to the oceans, covering vast regions.

Clay minerals refers to a group of hydrous aluminosili-cates that predominate the clay-sized (<2 |xm) fraction of soils.

2018年1月1日 · Clay minerals are a diverse group of minerals that are fine grained and crystalline and ultimately form from the aqueous alteration of primary igneous minerals at or near the surface of the Earth. They have a layered structure, commonly consisting of repeating sheets of Si tetrahedra and Al octahedra.

2022年1月1日 · Clay minerals are abundant in the world, inexpensive, and have a wide range of structures and properties, besides being environmentally friendly and having mechanical/heat stability. They have complex structures composed of two-dimensional units called layers, separated or not by intercalated cations.