clay mineral

Sedimentary silicate particle

Clay minerals are a group of silicate minerals that form the main component of clay soils.

They have layered crystalline structures that can absorb water, making them plastic when wet and hard when dried or fired.

Common clay minerals include kaolinite, montmorillonite, and illite.

Their properties make them essential for ceramics, brick-making, and drilling mud.

Related

mica · biotite · magnesium silicate · sedimentary rock · muscovite · clays · talc · hydrated · water absorption · soil · soil science · weathering · calcium · shale · plasticity · earthen · hydrous · layered

Opposites
mineral structure/crystal system

clay mineralquartz

Crystalline silicon dioxide

feldspar · olivine · pyroxene · amphibole · garnet

particle size/grain size

clay mineralboulder

Large weathered stone

gravel · sand grain

Family

clay, mineral

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Rated G