Macrostrat
Lexicon
Minerals
Abelsonite
Abenakiite-(Ce)
Abernathyite
Abhurite
Absite
Abswurmbachite
Acanthite
Acarbodavyne
Acetamide
Achávalite
Actinolite
Acuminite
Adamite
Adelite
Admontite
Adularia
Aegirine
Aegirine-augite
Aenigmatite
Aerinite