Short, fiber-like minerals include wollastonite and palygorskite. Six minerals have been classified as 'asbestos' including chrysotile of the serpentine class and those belonging to the amphibole class: amosite, crocidolite, tremolite, anthophyllite and actinolite. Asbestos is the only naturally occurring long mineral fiber. Mineral fibers include the asbestos group.Instances are silkworm silk, spider silk, sinew, catgut, wool, sea silk and hair such as cashmere wool, mohair and angora, fur such as sheepskin, rabbit, mink, fox, beaver, etc.

Animal fibers consist largely of particular proteins.

Kraft and sulfite refer to the type of pulping process used to remove the lignin bonding the original wood structure, thus freeing the fibers for use in paper and engineered wood products such as fiberboard. Forms include groundwood, lacebark, thermomechanical pulp (TMP), and bleached or unbleached kraft or sulfite pulps.

Wood fiber, distinguished from vegetable fiber, is from tree sources.

Plant fibers are employed in the manufacture of paper and textile (cloth), and dietary fiber is an important component of human nutrition.

Vegetable fibers are generally based on arrangements of cellulose, often with lignin: examples include cotton, hemp, jute, flax, abaca, piña, ramie, sisal, bagasse, and banana.

They can be classified according to their origin: Natural fibers develop or occur in the fiber shape, and include those produced by plants, animals, and geological processes.

Pina light table