macro shooting black spinel natural mineral rock isolated white background |
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| navigate by keyword : background black boulder close closeup coal composition concentrations contain crystal deposits elements formed geology gold gray haematite hematite isolated isometric known large macro material mgal2o4 mineral minerals natural naturally nature nobody object occur one ore oxide piece rare rock rocks rough shooting single specimen spinel stone structure texture which white |
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| Spinel is an oxide mineral with a composition of MgAl2O4 and an isometric crystal structure. |
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