Leire
Clay
Kvikkleire
Quick clay
Fullerjord
Fuller's earth
Kaolin
Tegl
Bricks
Terrakotta
Terracotta
Innholdsbeskrivende emne
Topic
Materiale
Materials
Materialer
Leirskifer
Shale
Humord
Silikat
Silicates
Silikater
Leirmineral
Leirmineraler
Clay minerals