Top Results for Black Oxide
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1
Time-tested black oxide finish for steel parts, providing mild corrosion resistance and a matte appearance.
2
Franklinite is a black, opaque zinc, manganese, and iron oxide mineral belonging to the spinel group. Its chemical composition is commonly represented by the formula (Zn,Mn,Fe)Fe2O4, although the proportions of the elements can vary. The mineral is strongly associated with the Franklin and Sterling...
5.61
Average
Why this score
Franklin locality and fluorescence context interest collectors; opaque ore-like appearance limits gemstone appeal.
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