Abelsonite

Abelsonit

C₃₁H₃₂N₄Ni

triclinic

Abenakiite-(Ce)

Abenakiit-(Ce)

Na₂₆(Ce, REE)₆(SiO₃)₆(PO₄)₆(CO₃)₆ (S⁴⁺O₂)O

trigonal

Abernathyite

Abernathyit

K₂(UO₂)₂(AsO₄)₂ • 6H₂O

tetragonal

Abhurite

Abhurit

Sn²⁺₂₁O₆Cl₁₆(OH)₁₄

trigonal

Abswurmbachite

Abswurmbachit

(Cu, Mn²⁺)Mn³⁺₆SiO₁₂

tetragonal (?)

Acanthite

Akantit

Ag₂S

monoclinic

Acetamide

Acetamid

CH₃CONH₂

trigonal

Actinolite

Aktinolit

Ca₂(Mg, Fe²⁺)₅Si₈O₂₂(OH)₂

monoclinic

Acuminite

Akuminit

SrAlF₄(OH) • H₂O

monoclinic

Adamite

Adamin

Zn₂(AsO₄)(OH)

orthorhombic

Adamsite-(Y)

Adamsit-(Y)

NaY(CO₃)₂ • 6H₂O

triclinic

Adelite

Adelit

CaMg(AsO₄)(OH)

orthorhombic

Admontite

Admontit

MgB₆O₁₀ • 7H₂O

monoclinic

Aegirine

Egirin

NaFe³⁺Si₂O₆

monoclinic

Aegirine-augite

Egirinaugit

(Ca, Na)(Fe²⁺, Mg, Fe³⁺)Si₂O₆

monoclinic

Aenigmatite

Enigmatit

Na₂Fe²⁺₅TiSi₆O₂₀

triclinic

Aërinite

Aërinit

Ca₄(Al, Fe³⁺, Mg, Fe²⁺)₁₀Si₁₂O₃₅(CO₃) (OH)₁₂ • 12H₂O

monoclinic

Aerugite

Aerugit

Ni₁₇As₆O₃₂

trigonal

Aeschynite-(Ce)

Eszkinit-(Ce)

(Ce, Ca, Fe, Th)(Ti, Nb)₂(O, OH)₆

orthorhombic

Aeschynite-(Nd)

Eszkinit-(Nd)

(Nd, Ce, Ca)(Ti, Nb)₂(O, OH)₆

orthorhombic

Aeschynite-(Y)

Eszkinit-(Y)

(Y, Ca, Fe, Th)(Ti, Nb)₂(O, OH)₆

orthorhombic

Afghanite

Afganit

(Na, Ca, K)₈(Si, Al)₁₂O₂₄(SO₄, Cl, CO₃)₃ • H₂O

hexagonal

Afwillite

Afwillit

Ca₃(SiO₃OH)₂ • 2H₂O

monoclinic

Agardite-(Ce)

Agardit-(Ce)

CeCu₆(AsO₄)₃(OH)₆ • 3H₂O

hexagonal

Agardite-(La)

Agardit-(La)

(La, Ca)Cu₆(AsO₄)₃(OH)₆ • 3H₂O

hexagonal

Agardite-(Y)

Agardit-(Y)

(Y, Ca)Cu₆(AsO₄)₃(OH)₆ • 3H₂O

hexagonal

Agrellite

Agrellit

NaCa₂Si₄O₁₀F

triclinic

Agrinierite

Agrinierit

(K₂, Ca, Sr)U₃O₁₀ • 4H₂O

orthorhombic

Aguilarite

Aguilarit

Ag₄SeS

orthorhombic

Aheylite

Aheylit

(Fe²⁺, Zn)Al₆(PO₄)₄(OH)₈ • 4H₂O

triclinic

Ahlfeldite

Ahlfeldit

NiSeO₃ • 2H₂O

monoclinic

Aikinite

Aikinit

PbCuBiS₃

orthorhombic

Ajoite

Ajoit

(K, Na)Cu₇AlSi₉O₂₄(OH)₆ • 3H₂O

triclinic

Akaganéite

Akaganéit

b-Fe³⁺O(OH, Cl)

monoclinic

Akatoreite

Akatoreit

Mn²⁺₉Al₂Si₈O₂₄(OH)₈

triclinic

Akdalaite

Akdalait

4Al₂O₃ • H₂O

hexagonal

Åkermanite

Åkermanit

Ca₂MgSi₂O₇

tetragonal

Akhtenskite

Ahtenszkit

MnO₂

hexagonal

Akimotoite

Akimotoit

(Mg, Fe)SiO₃

trigonal

Akrochordite

Akrokordit

(Mn²⁺, Mg)₅(AsO₄)₂(OH)₄ • 4H₂O

monoclinic

Aksaite

Akszait

MgB₆O₇(OH)₆ • 2H₂O

orthorhombic

Aktashite

Aktasit

Cu₆Hg₃As₄S₁₂

trigonal

Alabandite

Alabandin

MnS

cubic

Alacranite

Alacranit

As₈S₉

monoclinic

Alamosite

Alamosit

PbSiO₃

monoclinic

Alarsite

Alarzit

AlAsO₄

trigonal

Albite

Albit

NaAlSi₃O₈

triclinic

Albrechtschraufite

Albrechtschraufit

Ca₄Mg(UO₂)₂(CO₃)₆F₂ • 17H₂O

triclinic

Aldermanite

Aldermanit

Mg₅Al₁₂(PO₄)₈(OH)₂₂ • 32H₂O

orthorhombic

Aleksite

Alekszit

PbBi₂Te₂S₂

trigonal

Alforsite

Alforsit

Ba₅(PO₄)₃Cl

hexagonal

Algodonite

Algodonit

Cu₆As

hexagonal

Aliettite

Aliettit

Mg₃Si₄O₁₀(OH)₂ • (Ca_0.5, Na)_0.33(Al, Fe, Mg)_2-3(Al, Si)₄O₁₀(OH)₂ • nH₂O

?

Allabogdanite

Allabogdanit

(Fe, Ni)₂P

orthorhombic

Allactite

Allaktit

Mn₇(AsO₄)₂(OH)₈

monoclinic

Allanite-(Ce)

Allanit-(Ce)

(Ce, Ca, Y)₂(Al, Fe²⁺, Fe³⁺)₃(SiO₄) (Si₂O₇)O(OH)

monoclinic

Allanite-(La)

Allanit-(La)

(La, Ce, Ca)₂(Al, Fe³⁺)₃(SiO₄)(Si₂O₇) O(OH)

monoclinic

Allanite-(Y)

Allanit-(Y)

(Y, Ce, Ca)₂(Al, Fe³⁺)₃(SiO₄)(Si₂O₇) O(OH)

monoclinic

Allargentum

Allargentum

Ag_1-xSb_x (x = 0.09-0.16)

hexagonal

Alleghanyite

Alleghanyit

Mn²⁺₅(SiO₄)₂(OH)₂

monoclinic

Allochalcoselite

Allokalkoszelit

Cu⁺Cu²⁺₅PbO₂(SeO₃)₂Cl₅

monoclinic

Alloclasite

Alloklász

(Co, Fe)AsS

monoclinic

Allophane

Allofán

Al₂O₃ • 1.3-2.0(SiO₂) • 2.5-3.0(H₂O)

amorphous

Alluaivite

Alluaivit

Na₁₉(Ca, Mn²⁺)₆(Ti, Nb)₃Si₂₆O₇₄Cl • 2H₂O

trigonal

Alluaudite

Alluaudit

(Na, Ca)Mn²⁺(Fe³⁺, Mn²⁺, Fe²⁺, Mg)₂ (PO₄)₃

monoclinic

Almandine

Almandin

Fe²⁺₃Al₂(SiO₄)₃

cubic

Almarudite

Almarudit

K(o, Na)₂(Mn, Fe, Mg)₂(Be, Al)₃Si₁₂O₃₀

hexagonal

Alpersite

Alpersit

(Mg, Cu)SO₄ • 7H₂O

monoclinic

Alsakharovite-Zn

Alszaharovit-Zn

NaSrKZn(Ti, Nb)₄(Si₄O₁₂)₂(O, OH)₄ • 7H₂O

monoclinic

Alstonite

Alstonit

BaCa(CO₃)₂

triclinic

Altaite

Altait

PbTe

cubic

Althausite

Althausit

Mg₂(PO₄)(OH, F, O)

orthorhombic

Althupite

Altufit

ThAl(UO₂)₇O₂(PO₄)₄(OH)₅ • 15H₂O

triclinic

Altisite

Altiszit

Na₃K₆Ti₂Al₂Si₈O₂₆Cl₃

monoclinic

Aluminite

Aluminit

Al₂(SO₄)(OH)₄ • 7H₂O

monoclinic

Aluminoceladonite

Aluminoszeladonit

K(Al, Fe³⁺)(Mg, Fe²⁺)Si₄O₁₀(OH)₂

monoclinic

Aluminocopiapite

Aluminocopiapit

Al_2/3Fe³⁺₄(SO₄)₆(OH)₂ • 20H₂O

triclinic

Alumino-magnesiohulsite

Aluminomagneziohulsit

Mg₂(Al_1-2xMg_xSn_x)O₂(BO₃)

monoclinic

Aluminum

Alumínium

Al

cubic

Alumohydrocalcite

Alumohidrokalcit

CaAl₂(CO₃)₂(OH)₄ • 3H₂O

triclinic

Alumoklyuchevskite

Alumokljucsevszkit

K₃Cu₃AlO₂(SO₄)₄

monoclinic

Alumopharmacosiderite

Alumofarmakosziderit

KAl₄(AsO₄)₃(OH)₄ • 6.5H₂O

cubic

Alumotantite

Alumotantit

AlTaO₄

orthorhombic

Alumotungstite

Alumotungsztit

(W, Al)(O, OH)₃ (?)

cubic

Alunite

Alunit

KAl₃(SO₄)₂(OH)₆

trigonal

Alunogen

Alunogén

Al₂(SO₄)₃ • 17H₂O

triclinic

Alvanite

Alvanit

(Zn, Ni)Al₄(VO₃)₂(OH)₁₂ • 2H₂O

monoclinic

Amakinite

Amakinit

(Fe²⁺, Mg)(OH)₂

trigonal

Amarantite

Amarantit

Fe³⁺₂(SO₄)₂O • 7H₂O

triclinic

Amblygonite

Ambligonit

LiAl(PO₄)(F, OH)

triclinic

Ameghinite

Ameghinit

NaB₃O₃(OH)₄

monoclinic

Amesite

Amesit

Mg₂Al(SiAl)O₅(OH)₄

triclinic

Amicite

Amicit

K₄Na₄Al₈Si₈O₃₂ • 10H₂O

monoclinic

Aminoffite

Aminoffit

Ca₃Be₂Si₃O₁₀(OH)₂

tetragonal

Ammonioalunite

Ammónioalunit

(NH₄)Al₃(SO₄)₂(OH)₆

trigonal

Ammonioborite

Ammónioborit

(NH₄)₂B₁₀O₁₆ • 5H₂O

monoclinic

Ammoniojarosite

Ammóniojarosit

(NH₄)Fe³⁺₃(SO₄)₂(OH)₆

trigonal

Ammonioleucite

Ammónioleucit

(NH₄, K)AlSi₂O₆

tetragonal

Amstallite

Amstallit

CaAl(Si, Al)₄O₈(OH)₄ • (H₂O, Cl)

monoclinic

Analcime

Analcim

NaAlSi₂O₆ • H₂O

cubic, tetragonal, orthorhombic or monoclinic

Anandite

Anandit

(Ba, K)(Fe²⁺, Mg)₃(Si, Al, Fe)₄O₁₀(S, OH)₂

monoclinic or orthorhombic

Anapaite

Anapait

Ca₂Fe²⁺(PO₄)₂ • 4H₂O

triclinic

Anatase

Anatáz

TiO₂

tetragonal

Ancylite-(Ce)

Ancilit-(Ce)

SrCe(CO₃)₂(OH) • H₂O

orthorhombic

Ancylite-(La)

Ancilit-(La)

Sr(La, Ce)(CO₃)₂(OH) • H₂O

orthorhombic

Andalusite

Andaluzit

Al₂SiO₅

orthorhombic

Andersonite

Andersonit

Na₂Ca(UO₂)(CO₃)₃ • 6H₂O

trigonal

Andorite

Andorit

PbAgSb₃S₆

orthorhombic

Andradite

Andradit

Ca₃Fe³⁺₂(SiO₄)₃

cubic

Andremeyerite

Andremeyerit

BaFe²⁺₂Si₂O₇

monoclinic

Androsite-(La)

Androszit-(La)

(Mn, Ca)(La, Ce, Ca, Nd)AlMn³⁺Mn²⁺ (SiO₄)(Si₂O₇)O(OH)

monoclinic

Anduoite

Anduoit

(Ru, Os)As₂

orthorhombic

Andyrobertsite

Andyrobertsit

KCdCu₅(AsO₄)₄[As(OH)₂O₂](H₂O)₂

monoclinic

Angelellite

Angelellit

Fe³⁺₄O₃(AsO₄)₂

triclinic

Anglesite

Anglesit

PbSO₄

orthorhombic

Anhydrite

Anhidrit

CaSO₄

orthorhombic

Anilite

Anilit

Cu₇S₄

orthorhombic

Ankangite

Ankangit

Ba(Ti, V³⁺, Cr³⁺)₈O₁₆

tetragonal

Ankerite

Ankerit

Ca(Fe²⁺, Mg, Mn)(CO₃)₂

trigonal

Ankinovichite

Ankinovicsit

(Ni, Zn)Al₄(VO₃)₂(OH)₁₂ • 2H₂O

monoclinic

Annabergite

Annabergit

Ni₃(AsO₄)₂ • 8H₂O

monoclinic

Annite

Annit

KFe²⁺₃AlSi₃O₁₀(OH, F)₂

monoclinic

Anorthite

Anortit

CaAl₂Si₂O₈

triclinic

Anorthoclase

Anortoklász

(Na, K)AlSi₃O₈

triclinic

Anorthominasragrite

Anortominasragrit

V⁴⁺O(SO₄)(H₂O)₅

triclinic

Ansermetite

Ansermetit

MnV₂O₆ • 4H₂O

monoclinic

Antarcticite

Antarktiszit

CaCl₂ • 6H₂O

trigonal

Anthoinite

Anthoinit

WAlO₃(OH)₃ (?)

triclinic

Anthonyite

Anthonyit

Cu(OH, Cl)₂ • 3H₂O

monoclinic

Anthophyllite

Antofillit

(Mg, Fe²⁺)₂(Mg, Fe²⁺)₅Si₈O₂₂(OH)₂

orthorhombic

Antigorite

Antigorit

(Mg, Fe²⁺)₃Si₂O₅(OH)₄

monoclinic

Antimonpearceite

Antimonpearceit

(Ag, Cu)₁₆(Sb, As)₂S₁₁

monoclinic

Antimonselite

Antimonszelit

Sb₂Se₃

orthorhombic

Antimony

Antimon

Sb

trigonal

Antlerite

Antlerit

Cu²⁺₃(SO₄)(OH)₄

orthorhombic

Anyuiite

Anyuiit

Au(Pb, Sb)₂

tetragonal

Apachite

Apachit

Cu₉Si₁₀O₂₉ • 11H₂O

monoclinic (?)

Aphthitalite

Aftitalit

(K, Na)₃Na(SO₄)₂

trigonal

Apjohnite

Apjohnit

Mn²⁺Al₂(SO₄)₄ • 22H₂O

monoclinic

Aplowite

Aplowit

(Co, Mn²⁺, Ni)SO₄ • 4H₂O

monoclinic

Apuanite

Apuanit

Fe²⁺Fe³⁺₄Sb³⁺₄O₁₂S

tetragonal

Aragonite

Aragonit

CaCO₃

orthorhombic

Arakiite

Arakiit

(Zn, Mn²⁺)(Mn²⁺, Mg)₁₂(Fe, Al)₂ (As³⁺O₃)(As⁵⁺O₄)₂(OH)₂₃

monoclinic

Aramayoite

Aramayoit

Ag(Sb, Bi)S₂

triclinic

Arapovite

Arapovit

(U, Th)(Ca, Na)₂(K_1-xo_x)Si₈O₂₀ • H₂O

tetragonal

Aravaipaite

Aravaipait

Pb₃AlF₉ • H₂O

triclinic

Arcanite

Arkanit

K₂SO₄

orthorhombic

Archerite

Archerit

H₂(K, NH₄)PO₄

tetragonal

Arctite

Arktit

Na₅Ca₇Ba(PO₄)₆F₃

trigonal

Arcubisite

Arkubizit

Ag₆CuBiS₄

?

Ardaite

Ardait

Pb₁₉Sb₁₃S₃₅Cl₇

monoclinic

Ardealite

Ardealit

Ca₂(HPO₄)(SO₄) • 4H₂O

monoclinic

Ardennite

Ardennit

Mn²⁺₄(Al, Mg)₆(SiO₄)₂(Si₃O₁₀)[(As, V)O₄](OH)₆

orthorhombic

Arfvedsonite

Arfvedsonit

NaNa₂[(Fe²⁺, Mg)₄Fe³⁺]Si₈O₂₂(OH)₂

monoclinic

Argentojarosite

Argentojarosit

AgFe³⁺₃(SO₄)₂(OH)₆

trigonal

Argentopentlandite

Argentopentlandit

Ag(Fe, Ni)₈S₈

cubic

Argentopyrite

Argentopirit

AgFe₂S₃

orthorhombic

Argentotennantite

Argentotennantit

(Ag, Cu, Zn, Fe)₁₂(As, Sb)₄S₁₃

cubic

Argutite

Argutit

GeO₂

tetragonal

Argyrodite

Argirodit

Ag₈GeS₆

orthorhombic

Arhbarite

Arhbarit

Cu₂(AsO₄)(OH) • 6H₂O

?

Aristarainite

Aristarainit

Na₂MgB₁₂O₂₀ • 10H₂O

monoclinic

Armalcolite

Armalcolit

(Mg, Fe²⁺)Ti₂O₅

orthorhombic

Armangite

Armangit

Mn²⁺₂₆As³⁺₁₈O₅₀(CO₃)(OH)₄

trigonal

Armenite

Armenit

BaCa₂Al₆Si₉O₃₀ • 2H₂O

orthorhombic

Armstrongite

Armstrongit

CaZrSi₆O₁₅ • 2.5H₂O

monoclinic

Arrojadite

Arrojadit

KNa₄Ca(Fe²⁺, Mn²⁺)₁₄Al(PO₄)₁₂(OH)₂

monoclinic

Arsenbrackebuschite

Arzénbrackebuschit

Pb₂(Fe³⁺, Zn)(AsO₄)₂(OH, H₂O)

monoclinic

Arsendescloizite

Arzéndescloizit

PbZn(AsO₄)(OH)

orthorhombic

Arsenic

Arzén

As

trigonal

Arseniopleite

Arzeniopleit

NaCaMn²⁺(Mn²⁺, Mg)₂(AsO₄)₃

monoclinic

Arseniosiderite

Arzeniosziderit

Ca₂Fe³⁺₃O₂(AsO₄)₃ • 3H₂O

monoclinic

Arsenoclasite

Arzenoklászit

Mn²⁺₅(AsO₄)₂(OH)₄

orthorhombic

Arsenocrandallite

Arzenocrandallit

(Ca, Sr)Al₃(AsO₄, PO₄)₂(OH)₅ • H₂O

trigonal

Arsenoflorencite-(Ce)

Arzenoflorencit-(Ce)

(Ce, La)Al₃(AsO₄, PO₄)₂(OH)₆

trigonal

Arsenogorceixite

Arzenogorceixit

BaAl₃(AsO₄)(AsO₃OH)(OH)₆

trigonal

Arsenogoyazite

Arzenogoyazit

(Sr, Ca, Ba)Al₃(AsO₄, PO₄)₂(OH, F)₅ • H₂O

trigonal

Arsenohauchecornite

Arzenohauchecornit

Ni₁₈Bi₃AsS₁₆

tetragonal

Arsenolamprite

Arzenolamprit

As

orthorhombic

Arsenolite

Arzenolit

As₂O₃

cubic

Arsenopalladinite

Arzenopalladinit

Pd₈(As, Sb)₃

triclinic

Arsenopyrite

Arzenopirit

FeAsS

monoclinic

Arsenosulvanite

Arzenoszulvanit

Cu₃(As, V)S₄

cubic

Arsenpolybasite

Arzénpolibázit

(Ag, Cu)₁₆(As, Sb)₂S₁₁

monoclinic

Arsentsumebite

Arzéntsumebit

Pb₂Cu(AsO₄)(SO₄)(OH)

monoclinic

Arsenuranospathite

Arzénuranoszpátit

HAl(UO₂)₄(AsO₄)₄ • 40H₂O

orthorhombic

Arsenuranylite

Arzénuranilit

Ca(UO₂)₄(AsO₄)₂(OH)₄ • 6H₂O (?)

orthorhombic

Arthurite

Arthurit

CuFe³⁺₂(AsO₄, PO₄, SO₄)₂(O, OH)₂ • 4H₂O

monoclinic

Artinite

Artinit

Mg₂(CO₃)(OH)₂ • 3H₂O

monoclinic

Artroeite

Artroeit

PbAlF₃(OH)₂

triclinic

Artsmithite

Artsmithit

Hg₄Al(PO₄)_2-x(OH)_1+3x

monoclinic

Arupite

Arupit

Ni₃(PO₄)₂ • 8H₂O

monoclinic

Arzakite

Arzakit

Hg₃S₂(Br, Cl)₂

monoclinic or triclinic

Asbecasite

Azbekaszit

Ca₃(Ti, Sn⁴⁺)As³⁺₆Si₂Be₂O₂₀

trigonal

Asbolane

Aszbolán

(Ni, Co)_xMn⁴⁺(O, OH)₄ • nH₂O

hexagonal

Aschamalmite

Aschamalmit

Pb₆Bi₂S₉

monoclinic

Ashanite

Ashanit

(Nb, Ta, U, Fe, Mn)₄O₈

orthorhombic

Ashburtonite

Ashburtonit

Pb₄Cu₄HSi₄O₁₂(HCO₃)₄(OH)₄Cl

tetragonal

Ashcroftine-(Y)

Ashcroftin-(Y)

K₅Na₅(Y, Ca)₁₂Si₂₈O₇₀(CO₃)₈(OH)₂ • 8H₂O

tetragonal

Ashoverite

Ashoverit

Zn(OH)₂

tetragonal

Asisite

Asisit

Pb₇SiO₈Cl₂

tetragonal

Aspidolite

Aszpidolit

NaMg₃AlSi₃O₁₀(OH)₂

monoclinic

Asselbornite

Asselbornit

(Pb, Ba)(UO₂)₆(BiO)₄(AsO₄)₂(OH)₁₂ • 3H₂O

cubic

Astrocyanite-(Ce)

Asztrocianit-(Ce)

Cu₂(Ce, Nd, La)₂(UO₂)(CO₃)₅(OH)₂ • 1.5H₂O

hexagonal

Astrophyllite

Asztrofillit

(K, Na)₃(Fe²⁺, Mn)₇Ti₂Si₈O₂₄(O, OH)₇

triclinic

Atacamite

Atacamit

Cu₂Cl(OH)₃

orthorhombic

Atelestite

Atelesztit

Bi₂O(AsO₄)(OH)

monoclinic

Athabascaite

Athabascait

Cu₅Se₄

orthorhombic

Atheneite

Athénéit

(Pd, Hg)₃As

hexagonal

Atlasovite

Atlaszovit

Cu²⁺₆Fe³⁺BiO₄(SO₄)₅ • KCl

tetragonal

Atokite

Atokit

(Pd, Pt)₃Sn

cubic

Attakolite

Attakolit

(Ca, Sr)Mn²⁺(Al, Fe³⁺)₄[H(Si, P)O₄] (PO₄)₃(OH)₄

monoclinic

Aubertite

Aubertit

Cu²⁺Al(SO₄)₂Cl • 14H₂O

triclinic

Augelite

Augelit

Al₂(PO₄)(OH)₃

monoclinic

Augite

Augit

(Ca, Na)(Mg, Fe, Al, Ti)(Si, Al)₂O₆

monoclinic

Aurichalcite

Aurikalkit

(Zn, Cu²⁺)₅(CO₃)₂(OH)₆

monoclinic

Auricupride

Aurikuprid

AuCu₃

cubic

Aurivilliusite

Aurivilliusit

Hg²⁺Hg¹⁺OI

monoclinic

Aurorite

Aurorit

(Mn²⁺, Ag, Ca)Mn⁴⁺₃O₇ • 3H₂O

trigonal

Aurostibite

Aurosztibit

AuSb₂

cubic

Austinite

Austinit

CaZn(AsO₄)(OH)

orthorhombic

Autunite

Autunit

Ca(UO₂)₂(PO₄)₂ • 10-12H₂O

tetragonal

Averievite

Averjevit

Cu₅O₂(VO₂)₂ • CuCl₂ • (Cs, K, Rb)Cl

trigonal

Avicennite

Avicennit

Tl₂O₃

cubic

Avogadrite

Avogadrit

(K, Cs)BF₄

orthorhombic

Awaruite

Awaruit

Ni₂Fe – Ni₃Fe

cubic

Azoproite

Azoproit

(Mg, Fe²⁺)₂(Fe³⁺, Ti, Mg)BO₅

orthorhombic

Azurite

Azurit

Cu²⁺₃(CO₃)₂(OH)₂

monoclinic