| Abenakiite-(Ce) | |
| Aheylite | | (Fe | | ,Zn)Al | | [(OH) | | |(PO | | ) | | ] | | · 4H | | O |
|
| Aldermanite | |
| Alforsite | |
| Allabogdanite | |
| Allanpringite | |
| Alluaudite | | (Na,Ca)Mn | | (Fe | | ,Mn | | ,Fe | | ,Mg) | | (PO | | ) | | |
|
| 'Alluaudite-Ca□' | |
| 'Alluaudite-NaNa' | |
| 'Alluaudite-Na□' | |
| Althausite | |
| Althupite | | AlTh(UO | | ) | | [O | | |(OH) | | |(PO | | ) | | ] · 15H | | O |
|
| 'Aluminian Britholite' | | (Ca,Ce,Y) | | (Al,Fe) | | [(Si,Al,P) | | ] | | (F,O) |
|
| 'Alumo-chalcosiderite' | |
| Amblygonite | |
| Anapaite | |
| Andreyivanovite | |
| Angastonite | |
| 'Ankoleite' | |
| Apatite-(CaCl) | |
| Apatite-(CaF) | |
| Apatite-(CaOH) | |
| Apatite-(CaOH)-M | | (Ca,Na) | | Ca | | [(OH,Cl)|(PO | | ,SO | | ) | | ] |
|
| Apatite-(SrOH) | |
| Archerite | |
| Arctite | |
| 'Arctowskite' | |
| Ardealite | |
| 'Argyrodite Group' | | A | | B | | X | | Y | | where A = Ag | | , Cu | | , Cd | | , etc·; B = Ga | | , Si | | , Ge | | , Sn | | , P | | , etc·; X = S, Se, Te; Y = Cl, Br, I |
|
| 'Arnhemite' | |
| 'Arrojadite Group' | |
| Arrojadite-(BaFe) | | {Ba[ ]}{Fe | | [ ]}{Ca}{Na | | [ ]}{Fe | | }{Al}[(OH) | | |HPO | | |(PO | | ) | | ] |
|
| 'Arrojadite-(BaNa)' | | {Ba[ ]}{Na | | }{Ca}{Na | | [ ]}{Fe | | }{Al}[(OH) | | |HPO | | |(PO | | ) | | ] |
|
| Arrojadite-(KFe) | | {KNa}{Fe | | [ ]}{Ca}{Na | | [ ]}{Fe | | }{Al}[(OH) | | |HPO | | |(PO | | ) | | ] |
|
| 'Arrojadite-(KFeNa)' | | {KNa}{Fe | | [ ]}{Ca}{Na | | }{Fe | | }{Al}[(OH) | | |HPO | | |(PO | | ) | | ] |
|
| Arrojadite-(KNa) | | {KNa}{Na | | }{Ca}{Na | | [ ]}{Fe | | }{Al}[(OH) | | |HPO | | |(PO | | ) | | ] |
|
| 'Arrojadite-(NaFe)' | | {Na | | }{Fe | | [ ]}{Ca}{Na | | [ ]}{Fe | | }{Al}[(OH) | | |HPO | | |(PO | | ) | | ] |
|
| Arrojadite-(PbFe) | | {Pb[ ]}{Fe | | [ ]}{Ca}{Na | | [ ]}{Fe | | }{Al}[(OH) | | |HPO | | |(PO | | ) | | ] |
|
| Arrojadite-(SrFe) | | {Sr[ ]}{Fe | | [ ]}{Ca}{Na | | [ ]}{Fe | | }{Al}[(OH) | | |HPO | | |(PO | | ) | | ] |
|
| Arthurite | | CuFe | | [(OH,O)|(AsO | | ,PO | | ,SO | | )] | | · 4H | | O |
|
| Artsmithite | | (Hg-Hg) | | Al[(OH) | | |(PO | | ) | | ] (x ≈ 0.26) |
|
| Arupite | |
| Atencioite | | Ca | | Fe | | Mg | | Fe | | Be | | [(OH) | | |(PO | | ) | | ] · 6H | | O |
|
| Attakolite | | (Ca,Sr)Mn(Al,Fe) | | [(OH) | | |(SiO | | ,PO | | )|(HPO | | ,PO | | ) | | ] |
|
| 'Auerlite' | |
| Augelite | |
| Autunite | |
| 'Azovskite' | |
| Babefphite | |
| Bakhchisaraitsevite | |