The rust is mainly Fe2O3, It takes more than minutes for the process of the redox reaction.

the reaction is:

4Fe +3O2+2n H2O=2Fe2O3•nH2O

here oxygen is the oxidant and iron is the reductant.

Spruce needle rust on Sitka spruce needles. Infection was also heavy the previous year (2018), evidenced by the absence of one-year-old needles. USDA Forest Service photo by Robin Mulvey.

A close up of rust on a railing.

more at stitches in play

More experimenting with 'rust abstract' shot in Photoshop.

Technique:

Filter > Blur > Radial Blur. (Blur method:spin)

Filter>Distort>wave (type Sine) (Undifined areas: wrap around)

Then added:

Filter >Render> Lighting effects

Light type :spotlight

Texture channel: Blue (white is high - Mountainous height)

(archives) Taken on Whidbey Island, Washington almost two years ago.

Found in a back alley off commercial drive.

Detail of peeling paint on the rusty stairs. This area of the staircase was submerged in the flood after hurricane Katrina.

Color of Shack

I love rusty things

Photo 8

The end is in sight: timzim.blogspot.com/2007/09/rust-busting.html

Rust.

Collage of Rust

Credits-

Lafleurerouge - rust over blue

Syriloth - rust and paint 1

Andrew McConnochie - rust mix

Pareeerica - *colored rust*

Andrew McConnochie - Blue rust

Tanakawho – rust on a blue wall

Lachlan Hardy – Rust Peel

Longhorndave – Rusted Fence

Shawnbot – Rust explosion

Fazen – rusted reflections

me'nthedogs' – Rust as art

blmurch – Skull, crossbones and rust

Impression made by an old cast iron fire hood. After making the image in rust i soaked it in tea. I forgot about it for some hours so it turned out a lot darker than intended, but I am pleased with the effect.

#Flickr12days

Feadz @ Rust

Vancouver, BC.

Rusting Away ( Old Ford Trucks rusting in a Junk Yard, Madison County, NC) Available for purchase at: www.keithkiserphotograpy.smugmug.com

a fresh morning of August, an old House and a small garden are a world of beautiful shots (San Sebastián - Valparaiso, coastal sector in Chile)

una fresca mañana de agosto, una vieja casa y un pequeño jardín son todo un mundo de hermosas tomas (San Sebastián - región de Valparaiso, sector costero en Chile)

Fence around water pipe at Stage Fort Park - the black diamonds are the fencing at the back of the enclosure. Made me think of an argyle pattern

rust

A rust monster.

Rust in November

Free texture

A close-up of rusty metal

Same poor rusted guy…different angle...

Rusted El train support. And to think this is part of what is holding us up in the air about 35 feet. Scary...

See where this picture was taken. [?]

SONY DSC

On the lamp at the Needles Old Battery.

ye ole urban decay

Rusting equipment at the Marmora Iron Mine, Marmora, Ontario.

© Rob Huntley

Rust is a matte, dark terra-cotta color. This color is popular in the fall and blends very well with our eye powder Minx.

contains: sericite mica, maranta arundinacea, kaolin clay, lavandula angustifolia essential oil, mica, iron oxide

Yep...someone lived in this. Look carefully at the left-hand window...that's a wind-chime!