mineraloid

noun
min·​er·​al·​oid | \ ˈmin(ə)rəˌlȯid\
plural -s

Definition of mineraloid

: an amorphous substance that would otherwise have the attributes of a mineral especially : a metamict substance derived from a mineral — compare gel mineral

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History and Etymology for mineraloid

International Scientific Vocabulary mineral entry 1 + -oid; probably originally formed in German

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miscellaneous remnants or debris

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