Black Iron Oxide, Fine, Synthetic, FreeShip.

Black Iron Oxide, Fine, Synthetic, FreeShip.

$8.75
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We have 3 grades of black iron oxide: natural granular coarse (magnetite), natural (magnetite) fine, and this grade, which is a synthetic fine. If you're using a black iron oxide as a pigment, you'll want to know the 3 grades do vary from a speckled dark gray (the speckles are bright and reflective, probably small flakes of mica), a dark gray, and this grade, a deep black. This is a fine mesh synthetic black iron oxide. The natural black iron oxides come from the mineral magnetite.  It's a darker black than the natural black iron oxides but not as black as the very fine synthetic grade. It's also a more consistent black from batch to batch than the naturals....(see more)  

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