Ott tree sap, Porcelain

Organic waste

Spirulina

Flower

Algae

Phytoplankton

Activated carbon

Slime mold

Bacteria

Blue Elf cup

Bauxite Residue

Carbon black

Japanese Knotweed

Seaweed

Seashell

Shrimp shells

Volcanic ash

Milk

Bacteria

Biobitumen

Soil

Rain

Indigo

Terra-merita

Black Walnut

Milk

Linseed, Calcite, Bentonite

Metal waste

Plant

Bark

Avocado Seed

Egg

Bacteria

Industrial Ash

Calcium Carbonate

Alum Mordant