mineral black

noun

Definition of mineral black

: a black pigment: such as
a : one made by grinding carbonaceous shale or slate
b : a natural pigment containing graphite
c : black iron oxide

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“Mineral black.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mineral%20black. Accessed 19 Sep. 2020.

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