| 'Acarbodavyne' | |
| Acuminite | |
| Adranosite | |
| 'Adularia' | |
| 'Aegirine-augite' | |
| Aerinite | | Ca | | (Fe | | ,Al,Fe | | ,Mg)(Al,Mg) | | [HSi | | O | | (OH) | | ][(CO | | ) | | (H | | O) | | ] |
|
| Afghanite | | (Na,Ca,K) | | [(Cl | | ,SO | | ,CO | | ) | | |Al | | Si | | O | | ] · 0.5H | | O |
|
| 'Ag-Analcite' | |
| Aheylite | | (Fe | | ,Zn)Al | | [(OH) | | |(PO | | ) | | ] | | · 4H | | O |
|
| 'AHF' | |
| Ajoite | | (K,Na)Cu | | [(OH) | | |AlSi | | O | | ] · 3H | | O |
|
| Akatoreite | |
| Akdalaite | |
| Alarsite | |
| Albite | |
| Aldermanite | |
| 'Alexandrolite' | |
| Aliettite | |
| Allanite-(Ce) | | {CaCe}{Al | | Fe | | }[O|OH|SiO | | |Si | | O | | ] |
|
| Allanite-(La) | | {CaLa}{Al | | Fe | | }[O|OH|SiO | | |Si | | O | | ] |
|
| Allanite-(Y) | | {CaY}{Al | | Fe | | }[O|OH|SiO | | |Si | | O | | ] |
|
| Allophane | |
| 'Allophite' | |
| Alloriite | | (Na,Ca,K) | | Ca | | [Cl | | |(SO | | ) | | |(Al | | Si | | O | | ) | | ] |
|
| Almandine | |
| Almarudite | | K([],Na) | | (Mn | | ,Fe | | ,Mg) | | (Be,Al) | | [Si | | O | | ] |
|
| Althupite | | AlTh(UO | | ) | | [O | | |(OH) | | |(PO | | ) | | ] · 15H | | O |
|
| Altisite | |
| 'Alum Group' | |
| Alum-(K) | |
| Alum-(Na) | |
| 'Aluminian Britholite' | | (Ca,Ce,Y) | | (Al,Fe) | | [(Si,Al,P) | | ] | | (F,O) |
|
| 'Aluminian Chromite' | |
| 'Aluminian Hisingerite' | |
| 'Aluminian nontronite' | |
| Aluminite | |
| 'Aluminium Montmorillonite' | |
| 'Aluminium Spinel' | |
| 'Alumino-ferro-hornblende' | |
| 'Alumino-ferrobarroisite' | | ☐[CaNa][Fe | | Al | | ][(OH) | | |AlSi | | O | | ] |
|
| 'Alumino-magnesio-hornblende' | |
| Alumino-Magnesiotaramite | | Na[CaNa][Mg | | Al | | ][(OH) | | |Al | | Si | | O | | ] |
|
| 'Aluminobarroisite' | | ☐[CaNa][Mg | | Al | | ][(OH) | | |AlSi | | O | | ] |
|
| Aluminoceladonite | | K(Mg,Fe | | )(Al,Fe | | )[(OH) | | |Si | | O | | ] |
|
| Aluminocerite-(Ce) | | (Ce,La,Ca) | | (Al,Fe | | )(SiO | | ) | | [SiO | | (OH)] | | (OH) | | |
|
| Aluminocopiapite | |
| Aluminomagnesiohulsite | |
| Aluminotaramite | | Na[CaNa][Fe | | Al | | ][(OH) | | |Al | | Si | | O | | ] |
|
| Aluminotschermakite | |
| 'Alumo-chalcosiderite' | |