| ''Unnamed (MSH UK-33A)'' | |
| ''Unnamed (MSH UK-37A)'' | |
| Abenakiite-(Ce) | |
| 'Acarbodavyne' | |
| Adamsite-(Y) | |
| Adranosite | |
| Aegirine | |
| 'Aegirine-augite' | |
| Aenigmatite | |
| Afghanite | | (Na,Ca,K) | | [(Cl | | ,SO | | ,CO | | ) | | |Al | | Si | | O | | ] · 0.5H | | O |
|
| Agrellite | |
| Aiolosite | |
| Ajoite | | (K,Na)Cu | | [(OH) | | |AlSi | | O | | ] · 3H | | O |
|
| Albite | |
| Alflarsenite | |
| Alloriite | | (Na,Ca,K) | | Ca | | [Cl | | |(SO | | ) | | |(Al | | Si | | O | | ) | | ] |
|
| Alluaivite | | Na | | (Ca,Mn) | | (Ti,Nb) | | Si | | O | | Cl·2H | | O |
|
| Alluaudite | | (Na,Ca)Mn | | (Fe | | ,Mn | | ,Fe | | ,Mg) | | (PO | | ) | | |
|
| 'Alluaudite-NaNa' | |
| 'Alluaudite-Na□' | |
| Almarudite | | K([],Na) | | (Mn | | ,Fe | | ,Mg) | | (Be,Al) | | [Si | | O | | ] |
|
| 'Aloisiite' | |
| Alsakharovite-Zn | | NaSrKZn(Ti,Nb) | | (Si | | O | | ) | | (O,OH) | | · 7H | | O |
|
| Altisite | |
| Alum-(Na) | |
| 'Aluminian nontronite' | |
| 'Alumino-ferrobarroisite' | | ☐[CaNa][Fe | | Al | | ][(OH) | | |AlSi | | O | | ] |
|
| Alumino-Magnesiotaramite | | Na[CaNa][Mg | | Al | | ][(OH) | | |Al | | Si | | O | | ] |
|
| 'Aluminobarroisite' | | ☐[CaNa][Mg | | Al | | ][(OH) | | |AlSi | | O | | ] |
|
| Aluminotaramite | | Na[CaNa][Fe | | Al | | ][(OH) | | |Al | | Si | | O | | ] |
|
| Amarillite | |
| Ameghinite | |
| Amicite | |
| 'Ammonium-Aphthitalite' | |
| 'Ammonium-Thomsonite' | |
| 'Analbite (of Winchell)' | |
| Analcime | |
| Andersonite | |
| 'Andesine' | |
| Andrianovite | | Na | | (K,Sr,Ce) | | Ca | | Mn | | Zr | | Nb(Si | | O | | )(O,H | | O,OH) | | |
|
| Anorthoclase | |
| Apatite-(CaOH)-M | | (Ca,Na) | | Ca | | [(OH,Cl)|(PO | | ,SO | | ) | | ] |
|
| Aphthitalite | |
| Apophyllite-(NaF) | |
| Aqualite | | (H | | O) | | (Na,K,Sr) | | Ca | | Zr | | Si | | O | | (OH) | | Cl |
|
| Arapovite | | (K,[ ])(Ca,Na) | | (U,Th)[Si | | O | | ] · H | | O |
|
| Arctite | |
| Arfvedsonite | |
| Arisite-(La) | |
| Aristarainite | |