ferruginous
Like oxidized metal
Ferruginous means rust-colored or containing iron.
The word appears in scientific and technical contexts: ferruginous soil, ferruginous hawk, ferruginous water.
The reddish-brown color comes from iron oxide—the same compound that makes rust.
Outside specialized writing, rusty or iron-rich usually serve the same purpose.
Iron oxide ore
- limoniteHydrated iron oxide ore
- sideriteIron carbonate mineral
- magnetiteMagnetic iron ore
- ironstoneOre-laden rock or stoneware
taconite · ore · hemoglobin · laterite · iron oxide · ochre · umber · sienna
Tropical iron-rich clay
- ironstoneOre-laden rock or stoneware
- ochreIron-rich earth pigment
- clayMoldable earth for ceramics
- sedimentParticles settling in liquid
deposit · strata · bedrock · formation · mineral · outcrop · leaching
Warm earth tone
- ochreIron-rich earth pigment
- siennaEarthy artist's pigment
- umberNatural earth pigment
- brickFired clay building unit
auburn · coppery · tawny · rufous · terra-cotta · chestnut · ruddy · mahogany
Iron oxide coating
- oxidationLosing electrons chemically
- corrosionChemical wearing away
- patinaSurface film from aging
- weatheringAtmospheric breakdown of materials
discoloration · tarnish · pitting · staining · reddish-brown · deterioration · flaking · decay
hematite
Iron oxide ore
ironstone · taconite · ore · hemoglobin · laterite · iron oxide · ochre · umber · sienna · pyrite
laterite
Tropical iron-rich clay
sediment · deposit · strata · bedrock · formation · mineral · outcrop · leaching
reddish-brown
Warm earth tone
brick · auburn · coppery · tawny · rufous · terra-cotta · chestnut · ruddy · mahogany · burnt orange
rust
Iron oxide coating
weathering · discoloration · tarnish · pitting · staining · reddish-brown · deterioration · flaking · decay · aged
plumage
Bird's complete feather coat
- raptorHunting bird with talons
- habitatOrganism's natural environment
- wetlandWaterlogged land ecosystem
grassland · steppe · mineral springs · bog