- (of a constituent of a rock) formed in the rock where it is found.Compare allogenic(def 1).
Origin of authigenic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- (of minerals) having crystallized in a sediment during or after deposition
C19: from German authigene from Greek authigenēs native + -ic
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