Plural of ammite: small fragments or particles of sedimentary rock or mineral material, particularly those containing sand or other fine-grained components.
Possibly from Greek 'ammos' (sand) plus the suffix '-ite' (indicating a type of mineral or rock). The term may relate to sandy sedimentary deposits, though its etymology is uncertain in modern geological literature.
If ammites truly relates to sand, it's one of geology's many '-ite' words—the suffix '-ite' gets attached to almost everything in mineralogy, from granite to magnetite, creating a family of rock and mineral names.
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