Red Iron Oxide, Spanish, Natural, FreeShip.

Red Iron Oxide, Spanish, Natural, FreeShip.

$7.51
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This is a natural red iron oxide of Spanish origin.  This red has a dash of yellow which gives it a slight orange cast (it's hard to capture the difference in pictures). Iron oxide is a very ancient pigment and there are many varieties. It finds applications in paint, ceramics, and plastics (as a colorant and filler). Used for many things besides a pigment and filler. There are 3 main types (Fe2O3, FeO, and Fe3O4), and 3 main colors (although it is found in many shades of these): black, red, and yellow. Other well known pigments based on or containing iron oxide are yellow ochre, burnt umber, and raw sienna....(see more)  

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