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sample of rough blue spinel crystal on white
sample of rough pink spinel mineral on white
sample of rough red spinel crystal on black
rough pink spinel crystal on black granite
black spinel crystal on black diopside matrix
uncut red spinel crystal isolated on white
sample of rough red spinel crystal on white
raw black spinel crystal on black diopsides
sample of raw blue spinel crystal on black granite
sample of raw pink spinel crystal on black granite
sample of raw pink spinel mineral on white marble
sample of raw red spinel crystal on black granite