Clay
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Clay is a type of fine-grained natural soil material containing clay minerals. Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impurities, such as
Boulder clay cliff south of Withernsea, England
A 23,500 times magnified electron micrograph of smectite clay
Italian and African-American clay miners in mine shaft, 1910
Clay layers in a construction site in Auckland, New Zealand. Dry clay is normally much more stable than sand in excavations.
Loam
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Loam is soil composed mostly of sand, silt, and a smaller amount of clay. By weight, its mineral composition is about 40–40–20% concentration of sand, silt and clay, respectively. These proportions ca
Fine, loam-rich field ideal for farming vegetables in the UK
Loam with timber framing (Michelau in Oberfranken, Germany, 2007)
House with loam ground floor (Baligród, Poland, 2012)
Loam-timber-framed 1707 house, under restoration (Biesenthal, Germany, 2006)