| Babefphite | BaBePO₄F | Tetragonal | — | 4.33 g/cm³ |
| Babingtonite | Ca₂(Fe,Mn)FeSi₅O₁₄(OH) | Triclinic | — | — |
| Babkinite | Pb₂Bi₂(S,Se)₃ | — | — | — |
| Babunaite-(Nd) | NdAsO₄ | Tetragonal | — | 6.16 g/cm³ |
| Babánekite | Cu₃(AsO₄)₂·8H₂O | Monoclinic | — | — |
| Bacaferrite | BaCaFe₄O₈ | Trigonal | — | — |
| Backite | Pb₂AlTeO₆Cl | Trigonal | — | — |
| Badakhshanite-(Y) | Y₂Mn₄Al(Si₂B₇BeO₂₄) | Orthorhombic | — | — |
| Badalovite | NaNaMg(MgFe³⁺)(AsO₄)₃ | Monoclinic | — | — |
| Baddeleyite | ZrO₂ | Monoclinic | 6.5 | 5.78 g/cm³ |
| Badengzhuite | — | Hexagonal | — | — |
| Bafertisite | Ba₂(Fe²⁺)₄Ti₂(Si₂O₇)₂O₂(OH)₂F₂ | Monoclinic | — | — |
| Baghdadite | Ca₃(Zr,Ti)(Si₂O₇)O₂ | Monoclinic | — | — |
| Bahariyaite | — | Orthorhombic | — | — |
| Bahianite | Al₅Sb⁵⁺₃O₁₄(OH)₂ | Monoclinic | 9.0 | — |
| Baiamareite | Ag₄Pb₁₂Fe₄Sb₂₀S₄₈ | Monoclinic | — | — |
| Baileychlore | (Zn,Fe²⁺,Al,Mg)₆(Si,Al)₄O₁₀(OH)₈ | Triclinic | — | — |
| Bainbridgeite-(NdCe) | Na₂Ba₂NdCe(CO₃)₆·3H₂O | Triclinic | — | — |
| Bainbridgeite-(YCe) | Na₂Ba₂YCe(CO₃)₆·3H₂O | Triclinic | — | — |
| Bairdite | Pb₂Cu²⁺₄Te⁶⁺₂O₁₀(OH)₂(SO₄)·H₂O | Monoclinic | — | — |
| Bakhchisaraitsevite | — | Monoclinic | — | — |
| Baksanite | Bi₆Te₂S₃ | — | — | — |
| Balangeroite | (Mg,Fe²⁺,Fe³⁺,Mn²⁺)₄₂Si₁₆O₅₄(OH)₄₀ | — | — | — |
| Balestraite | KLi₂V⁵⁺Si₄O₁₂ | Monoclinic | — | — |
| Balipholite | BaLiMg₂Al₃(Si₂O₆)₂(OH)₄ | Orthorhombic | — | — |
| Balićžunićite | Bi₂O(SO₄)₂ | Triclinic | — | — |
| Balkanite | Ag₅Cu₉HgS₈ | Orthorhombic | — | — |
| Balliranoite | (Na,K)₆Ca₂(Si₆Al₆O₂₄)Cl₂(CO₃) | Hexagonal | — | — |
| Balyakinite | Cu²⁺(Te⁴⁺O₃) | Orthorhombic | 3.0 | — |
| Bambollaite | Cu(Se,Te)₂ | — | — | — |
| Bamfordite | Fe³⁺Mo₂O₆(OH)₃ * H₂O | — | — | — |
| Banalsite | Na₂BaAl₄Si₄O₁₆ | Orthorhombic | — | 2.95 g/cm³ |
| Bandylite | Cu[B(OH)₄]Cl | Tetragonal | 2.5 | — |
| Bannermanite | — | Monoclinic | — | — |
| Bannisterite | (Ca,K,Na)(Mn²⁺,Fe²⁺)₁₀(Si,Al)₁₆O₃₈(OH)₈ * nH₂O | — | 4.0 | — |
| Baotite | Ba₄Ti₈Si₄O₂₈Cl | — | 6.0 | — |
| Barahonaite-(Al) | (Ca,Cu,Na,Fe³⁺,Al)₁₂Al₂(AsO₄)₈(OH,Cl)x * nH₂O | Monoclinic | — | — |
| Barahonaite-(Fe) | (Ca,Cu,Na,Fe³⁺,Al)₁₂Fe³⁺₂(AsO₄)₈(OH,Cl)x * nH₂O | Monoclinic | — | — |
| Bararite | (NH₄)₂SiF₆ | Trigonal | — | 2.01 g/cm³ |
| Baratovite | KCa₇(Ti,Zr)₂Li₃Si₁₂O₃₆F₂ | Monoclinic | — | — |
| Barberiite | NH₄BF₄ | Orthorhombic | — | 1.86 g/cm³ |
| Barbosalite | Fe²⁺Fe³⁺₂(PO₄)₂(OH)₂ | — | 6.0 | — |
| Barentsite | Na₇Al(HCO₃)₂(CO₃)₂F₄ | Triclinic | — | 2.46 g/cm³ |
| Bariandite | Al₀.₆(V₅+,V₄+)₈O₂₀ * 9H₂O | Monoclinic | — | — |
| Barikaite | Ag₃Pb₁₀(Sb₈As₁₁)Σ₁₉S₄₀ | Monoclinic | — | — |
| Bario-olgite | Na(Na,Sr,Ce)₂Ba(PO₄)₂ | Trigonal | — | — |
| Bario-orthojoaquinite | (Ba,Sr)₄Fe₂Ti₂[Si₄O₁₂]₂O₂ * H₂O | Orthorhombic | — | — |
| Barioferrite | BaFe³⁺₁₂O₁₉ | Hexagonal | — | — |
| Bariolakargiite | BaZrO₃ | Cubic | — | 6.15 g/cm³ |
| Barioperovskite | BaTiO₃ | Orthorhombic | — | 5.91 g/cm³ |
| Bariopharmacoalumite | Ba₀.₅Al₄(AsO₄)₃(OH)₄·4H₂O | Cubic | — | — |
| Bariopharmacosiderite | Ba₀.₅Fe³⁺₄(AsO₄)₃(OH)₄ * 5H₂O | Tetragonal | — | — |
| Bariosincosite | Ba(VO)₂(PO₄)₂ · 4H₂O | — | — | — |
| Barićite | (Mg,Fe)₃(PO₄)₂·8H₂O | — | — | — |
| Barkovite | Ni₁,₅Sn | Hexagonal | — | — |
| Barlowite | Cu₄BrF(OH)₆ | Hexagonal | — | — |
| Barnesite | (Na,Ca)V₆O₁₆ * 3H₂O | Monoclinic | 3.0 | — |
| Barquillite | Cu₂CdGeS₄ | Tetragonal | — | 4.62 g/cm³ |
| Barrerite | Na₂(Si₇Al₂)O₁₈·6H₂O | Orthorhombic | — | — |
| Barringerite | (Fe,Ni)₂P | Hexagonal | — | — |
| Barroisite | ☐NaCa[Mg₃Al₂](Si₇Al)O₂₂(OH)₂ | Monoclinic | 5.5 | — |
| Barronite | — | Monoclinic | — | — |
| Barrotite | Cu₉Al(HSiO₄)₂[(SO₄)(HAsO₄)₀.₅](OH)₁₂·8H₂O | Trigonal | — | — |
| Barrydawsonite-(Y) | Na₁.₅Y₀.₅CaSi₃O₉H | Monoclinic | — | — |
| Barstowite | Pb₄Cl₆(CO₃)·H₂O | — | 3.0 | — |
| Bartelkeite | PbFeGe(Ge₂O₇)(OH)₂·H₂O | Monoclinic | 4.0 | — |
| Bartonite | — | Tetragonal | — | — |
| Barwoodite | Mn²⁺₆Nb₅+(SiO₄)₂O₃(OH)₃ | Trigonal | — | — |
| Barylite | BaBe₂Si₂O₇ | Orthorhombic | — | 4.02 g/cm³ |
| Barysilite | Pb₈Mn²⁺[Si₂O₇]₃ | Trigonal | — | — |
| Baryte | BaSO₄ | Orthorhombic | — | 4.42 g/cm³ |
| Barytocalcite | BaCa(CO₃)₂ | Monoclinic | — | — |
| Barytolamprophyllite | (BaK)Ti₂Na₃Ti(Si₂O₇)₂O₂(OH)₂ | Monoclinic | — | — |
| Bassanite | CaSO₄·0.5H₂O | Monoclinic | — | — |
| Bassetite | Fe²⁺(UO₂)₂(PO₄)₂ * 10H₂O | Monoclinic | 2.5 | — |
| Bassoite | SrV⁴⁺₃O₇·4H₂O | Monoclinic | — | — |
| Bastnäsite-(Ce) | Ce(CO₃)F | Hexagonal | — | 4.99 g/cm³ |
| Bastnäsite-(La) | LaCO₃F | Hexagonal | — | 4.74 g/cm³ |
| Bastnäsite-(Nd) | Nd(CO₃)F | Hexagonal | — | — |
| Bastnäsite-(Y) | Y(CO₃)F | Hexagonal | — | — |
| Batagayite | CaZn₂(Zn,Cu)₆(PO₄)₄[PO₃(OH)]₃*₁₂H₂O | Monoclinic | — | — |
| Batievaite-(Y) | Ca₂Y₂[(H₂O)₂☐]Ti(Si₂O₇)₂(OH)₂(H₂O)₂ | Triclinic | — | — |
| Batiferrite | BaTi₂Fe³⁺₈Fe²⁺₂O₁₉ | Hexagonal | — | — |
| Batisite | BaNaNaTi₂(Si₄O₁₂)O₂ | — | — | — |
| Batisivite | BaTi₆(V,Cr)₈(Si₂O₇)O₂₂ | Triclinic | — | — |
| Batoniite | Al₈(SO₄)₅(OH)₁₄(H₂O)₁₈·5H₂O | Triclinic | — | — |
| Baumhauerite | Pb₁₂As₁₆S₃₆ | — | — | — |
| Baumhauerite II | Pb₃As₄S₉ | Monoclinic | — | — |
| Baumoite | BaU₃Mo₂O₁₆(H₂O)₆ | Monoclinic | — | — |
| Baumstarkite | Ag₃Sb₃S₆ | — | 2.5 | — |
| Bauranoite | BaU₂O₇·(4-5)H₂O | — | 5.0 | — |
| Bavenite | Ca₄Be₂₊ₓAl₂₋ₓSi₉O₂₆₋ₓ(OH)₂₊ₓ (x=0 to 1) | Orthorhombic | — | — |
| Bavsiite | Ba₂V₂O₂[Si₄O₁₂] | Tetragonal | — | — |
| Bayanoboite-(Y) | Ba₂Y(CO₃)₂F₃ | Orthorhombic | — | 4.43 g/cm³ |
| Bayerite | Al(OH)₃ | Monoclinic | — | — |
| Bayldonite | Cu₃PbO(AsO₃OH)₂(OH)₂ | Monoclinic | 4.5 | — |
| Bayleyite | Mg₂(UO₂)(CO₃)₃ * 18H₂O | Monoclinic | — | — |
| Baylissite | K₂Mg(CO₃)₂·4H₂O | Monoclinic | — | — |
| Bazhenovite | — | Monoclinic | — | — |
| Bazirite | BaZr(Si₃O₉) | Hexagonal | — | — |
| Bazzite | Be₃Sc₂(Si₆O₁₈) | Hexagonal | — | — |
| Bearsite | Be₂(AsO₄)(OH) * 4H₂O | Monoclinic | — | — |
| Bearthite | Ca₂Al(PO₄)₂(OH) | Monoclinic | — | — |
| Beaverite-(Cu) | Pb(Fe³⁺₂Cu)(SO₄)₂(OH)₆ | Trigonal | — | — |
| Beaverite-(Zn) | Pb(Fe³⁺₂Zn)(SO₄)₂(OH)₆ | Trigonal | — | — |
| Bechererite | — | Trigonal | — | — |
| Beckettite | Ca₂V₆Al₆O₂₀ | Triclinic | — | — |
| Becquerelite | Ca(UO₂)₆O₄(OH)₆·8(H₂O) | Orthorhombic | 2.5 | — |
| Behoite | Be(OH)₂ | Orthorhombic | 4.0 | — |
| Beidellite | (Na,Ca₀.₅)₀.₃Al₂((Si,Al)₄O₁₀)(OH)₂ * nH₂O | — | — | — |
| Belakovskiite | Na₇(UO₂)(SO₄)₄(SO₃OH)(H₂O)₃ | Triclinic | — | — |
| Belendorffite | Cu₇Hg₆ | Trigonal | — | — |
| Belkovite | Ba₃(Nb,Ti)₆(Si₂O₇)₂O₁₂ | Hexagonal | — | — |
| Bellbergite | (K,Ba,Sr)₂Sr₂Ca₂(Ca,Na)₄(Si,Al)₃₆O₇₂·30H₂O | Hexagonal | — | — |
| Bellidoite | Cu₂Se | Tetragonal | — | — |
| Bellingerite | Cu₃(IO₃)₆·2H₂O | Triclinic | 4.0 | — |
| Belloite | Cu(OH)Cl | Monoclinic | — | — |
| Belmonteite | CaMn₂(AsO₄)₂·7H₂O | Orthorhombic | — | — |
| Belogubite | CuZn(SO₄)₂·10H₂O | Triclinic | — | — |
| Belomarinaite | KNa(SO₄) | Trigonal | — | — |
| Belousovite | KZn(SO₄)Cl | Monoclinic | — | — |
| Belovite-(Ce) | NaCeSr₃(PO₄)₃F | Trigonal | 5.0 | — |
| Belovite-(La) | NaLaSr₃(PO₄)₃F | Trigonal | 5.0 | — |
| Belyankinite | Ca₁-₂(Ti,Nb)₅O₁₂ * 9H₂O (?) | Amorphous | — | — |
| Bementite | Mn₇Si₆O₁₅(OH)₈ | Monoclinic | 6.0 | — |
| Benauite | SrFe³⁺₃(HPO₄,PO₄)₂(OH)₆ | — | — | — |
| Benavidesite | Pb₄MnSb₆S₁₄ | Monoclinic | — | — |
| Bendadaite | Fe²⁺Fe³⁺₂(AsO₄)₂(OH)₂·4H₂O | Monoclinic | — | — |
| Benitoite | — | Hexagonal | 6.0 | 3.65 g/cm³ |
| Benjaminite | Ag₃Bi₇S₁₂ | Monoclinic | — | — |
| Benleonardite | Ag₁₅Cu(Sb,As)₂S₇Te₄ | — | — | — |
| Bennesherite | — | Tetragonal | — | — |
| Benstonite | — | Trigonal | — | — |
| Bentorite | Ca₆Cr₂(SO₄)₃(OH)₁₂·26H₂O | Hexagonal | 2.0 | — |
| Benyacarite | (H₂O)₂Mn₂(Ti₂Fe³⁺)(PO₄)₄(OF)(H₂O)₁₀·4H₂O | — | — | — |
| Beraunite | Fe³⁺₆(PO₄)₄O(OH)₄(H₂O)₄·2H₂O | Monoclinic | — | — |
| Berborite | — | Trigonal | — | — |
| Berdesinskiite | — | Monoclinic | — | — |
| Berezanskite | K☐₂Li₃(Ti,Zr,Sn)₂[Si₁₂O₃₀] | — | — | — |
| Bergbauerite | (H₂O)₂Mn₂(Fe₂Ti)(PO₄)₄(OH)₂(H₂O)₁₀·4H₂O | Orthorhombic | — | — |
| Bergenite | Ca₂Ba₄(UO₂)₉O₆(PO₄)₆·16H₂O | Monoclinic | — | — |
| Bergslagite | CaBeAsO₄(OH) | Monoclinic | — | — |
| Berlinite | AlPO₄ | Trigonal | 6.5 | 2.65 g/cm³ |
| Bermanite | Mn²⁺Mn³⁺₂(PO₄)₂(OH)₂ * 4H₂O | — | — | — |
| Bernalite | — | Orthorhombic | 4.0 | — |
| Bernardevansite | Al₂(SeO₃)₃·6H₂O | — | — | — |
| Bernardite | TlAs₅S₈ | Monoclinic | — | — |
| Bernarlottiite | Pb₆(As₅Sb₃)S₁₈ | Triclinic | — | — |
| Berndlehmannite | Cu(CrV)S₄ | Cubic | — | — |
| Berndtite | SnS₂ | Trigonal | — | 4.17 g/cm³ |
| Bernwoodite | Ca₅TiAl₂Si₂O₁₄ | Monoclinic | — | — |
| Berryite | Cu₃Ag₂Pb₃Bi₇S₁₆ | Monoclinic | — | 6.71 g/cm³ |
| Berthierine | (Fe²⁺,Fe³⁺,Al)₃(Si,Al)₂O₅(OH)₄ | — | 2.5 | — |
| Berthierite | FeSb₂S₄ | Orthorhombic | — | — |
| Bertossaite | (Li,Na)₂(Ca,Fe²⁺,Mn²⁺)Al₄(PO₄)₄(OH,F)₄ | — | — | — |
| Bertrandite | Be₄Si₂O₇(OH)₂ | Orthorhombic | — | 2.54 g/cm³ |
| Beryl | Be₃Al₂Si₆O₁₈ | Hexagonal | — | — |
| Beryllite | Be₃(SiO₄)(OH)₂ * H₂O | Orthorhombic | — | — |
| Beryllocordierite-Na | NaMg₄(Al₅Be)(AlSi₅O₁₈)₂·2H₂O | Orthorhombic | — | — |
| Beryllonite | NaBePO₄ | Monoclinic | — | 2.71 g/cm³ |
| Berzelianite | Cu₂₋ₓSe (x~0.12) | Cubic | — | — |
| Berzeliite | (NaCa₂)Mg₂(AsO₄)₃ | Cubic | — | — |
| Beshtauite | (NH₄)₂(UO₂)(SO₄)₂·2H₂O | Monoclinic | — | — |
| Betekhtinite | (Cu,Fe)₂₁Pb₂S₁₅ | Orthorhombic | — | — |
| Betpakdalite-CaCa | [Ca₂(H₂O)₁₇Ca(H₂O)₆][Mo₆+₈As₅+₂Fe³⁺₃O₃₆(OH)] | Monoclinic | — | — |
| Betpakdalite-CaMg | [Ca₂(H₂O)₁₇Mg(H₂O)₆][Mo⁶⁺₈As⁵⁺₂Fe³⁺₃O₃₆(OH)] | Monoclinic | — | — |
| Betpakdalite-FeFe | [Fe³⁺₂ (H₂O)₁₅(OH)₂Fe³⁺(H₂O)₆][Mo₈As₂Fe³⁺₃ O₃₇] | Monoclinic | — | — |
| Betpakdalite-NaCa | [Na₂(H₂O)₁₇Ca(H₂O)₆][Mo₆+₈As₅+₂Fe³⁺₃O₃₄(OH)₃] | — | — | — |
| Betpakdalite-NaNa | [Na₂(H₂O)₁₆Na(H₂O)₆][Mo⁶⁺₈As⁵⁺₂Fe³⁺₃O₃₃(OH)₄] | Monoclinic | — | — |
| Bettertonite | Al₆(AsO₄)₃(OH)₉·16H₂O | Monoclinic | — | — |
| Betzite | Na₆Ca₂(Al₆Si₆O₂₄)Cl₄ | Hexagonal | — | — |
| Beudantite | PbFe³⁺₃(AsO₄)(SO₄)(OH)₆ | Trigonal | — | — |
| Beusite | Mn²⁺Mn²⁺₂(PO₄)₂ | — | — | — |
| Beusite-(Ca) | CaMn²⁺₂(PO₄)₂ | Monoclinic | — | — |
| Beyerite | CaBi₂O₂(CO₃)₂ | Orthorhombic | — | — |
| Bezsmertnovite | — | Orthorhombic | — | — |
| Biachellaite | (Na,Ca,K)₈(Si₆Al₆O₂₄)(SO₄)₂(OH)₀.₅·H₂O | Trigonal | — | — |
| Biagioniite | — | Monoclinic | — | — |
| Bianchite | Zn(SO₄)(H₂O)₆ | Monoclinic | — | — |
| Bicapite | [KNa₂Mg₂(H₂O)₂₅][H₂PV₅+₁₂O₄₀(V₅+O)₂] | — | — | — |
| Bicchulite | Ca₂(Al₂SiO₆)(OH)₂ | Cubic | — | — |
| Bideauxite | Pb₂AgCl₃(F,OH)₂ | — | — | — |
| Bieberite | CoSO₄·7H₂O | Monoclinic | 2.0 | — |
| Biehlite | ((Sb,As)O)₂[MoO₄] | Monoclinic | — | 5.23 g/cm³ |
| Bigcreekite | BaSi₂O₅·4H₂O | Orthorhombic | — | — |
| Bijvoetite-(Y) | Y₈(UO₂)₁₆(CO₃)₁₆O₈(OH)₈·39H₂O | Monoclinic | — | — |
| Bikitaite | LiAlSi₂O₆·H₂O | Triclinic | 6.0 | — |
| Bilibinskite | Au₃Cu₂Pb·nTeO₂ | Cubic | 4.5 | — |
| Billietite | — | Orthorhombic | — | — |
| Billwiseite | Sb³⁺₅Nb₃WO₁₈ | Monoclinic | — | — |
| Bimbowrieite | — | Monoclinic | — | — |
| Bindheimite | — | Cubic | — | — |
| Biphosphammite | (NH₄)H₂(PO₄) | Tetragonal | — | — |
| Biraite-(Ce) | Ce₂Fe²⁺(Si₂O₇)(CO₃) | Monoclinic | — | — |
| Biraite-(La) | — | Monoclinic | — | — |
| Birchite | Cd₂Cu₂(PO₄)₂(SO₄)·5H₂O | Orthorhombic | — | — |
| Biringuccite | Na₂B₅O₈(OH)·H₂O | Monoclinic | — | — |
| Birnessite | (Na,Ca,K)₀.₆(Mn⁴⁺,Mn³⁺)₂O₄·(H₂O)₁.₅ | — | 1.5 | 1.50 g/cm³ |
| Birunite | Ca₁₈(SiO₃)₈.₅(CO₃)₈.₅(SO₄)·15H₂O | — | — | — |
| Bischofite | MgCl₂·6H₂O | Monoclinic | — | — |
| Bismite | Bi₂O₃ | Monoclinic | 4.5 | — |
| Bismoclite | BiOCl | Tetragonal | — | — |
| Bismuth (native) | Bi | Trigonal | 2.3 | 9.77 g/cm³ |
| Bismuthinite | Bi₂S₃ | Orthorhombic | 2.0 | 6.60 g/cm³ |
| Bismutite | Bi₂O₂(CO₃) | Orthorhombic | — | 7.86 g/cm³ |
| Bismutocolumbite | BiNbO₄ | — | — | 7.16 g/cm³ |
| Bismutoferrite | Fe³⁺₂Bi(SiO₄)₂(OH) | — | — | — |
| Bismutohauchecornite | Ni₉Bi₂S₈ | Tetragonal | — | — |
| Bismutostibiconite | (Bi,Fe³⁺,☐)₂Sb⁵⁺₂O₇ | Cubic | — | — |
| Bismutotantalite | BiTaO₄ | — | — | 9.07 g/cm³ |
| Bitikleite | Ca₃(SbSn)(AlO₄)₃ | Cubic | — | — |
| Bityite | LiCaAl₂(AlBeSi₂O₁₀)(OH)₂ | — | — | — |
| Bixbyite-(Fe) | (Fe,Mn₂)O₃ | — | — | — |
| Bixbyite-(Mn) | Mn³⁺₂O₃ | Cubic | — | — |
| Bjarebyite | (Ba,Sr)(Mn²⁺,Fe²⁺,Mg)₂Al₂(PO₄)₃(OH)₃ | Monoclinic | — | — |
| Blakeite | Fe³⁺₂[Te⁴⁺O₃]₃ (?) | — | — | — |
| Blatonite | (UO₂)CO₃·H₂O | Hexagonal | — | — |
| Blatterite | Sb⁵⁺₃Mn³⁺₉Mn²⁺₃₅O₃₂(BO₃)₁₆ | Orthorhombic | — | — |
| Bleasdaleite | (Ca,Fe³⁺)₂Cu₅(Bi,Cu)(PO₄)₄(H₂O,OH,Cl)₁₃ | — | — | — |
| Blixite | Pb₂(O,OH)₂Cl | — | — | — |
| Blossite | — | Orthorhombic | — | — |
| Bluebellite | Cu₆(IO₃)(OH)₁₀Cl | Trigonal | — | — |
| Bluelizardite | Na₇(UO₂)(SO₄)₄Cl(H₂O)₂ | Monoclinic | — | — |
| Blueridgeite | Pb₈Zn₃Cu²⁺(OH)₁₆](SO₄)₂(S₂O₃)₂·2H₂O | Monoclinic | — | — |
| Bluestreakite | K₄Mg₂(V⁴⁺₂V⁵⁺₈O₂₈)·14H₂O | Monoclinic | 2.0 | — |
| Blödite | Na₂Mg(SO₄)₂·4H₂O | — | — | — |
| Bobcookite | NaAl(UO₂)₂(SO₄)₄·18H₂O | Triclinic | — | — |
| Bobdownsite | — | Trigonal | — | — |
| Bobfergusonite | Na₂Mn₅FeAl(PO₄)₆ | Monoclinic | — | — |
| Bobfinchite | — | Orthorhombic | — | — |
| Bobierrite | Mg₃(PO₄)₂·8H₂O | — | — | — |
| Bobkingite | Cu₅Cl₂(OH)₈·2H₂O | — | 3.0 | — |
| Bobmeyerite | Pb₄(Al₃Cu)(Si₄O₁₂)(S₀.₅Si₀.₅O₄)(OH)₇Cl(H₂O)₃ | Orthorhombic | — | — |
| Bobshannonite | KBaNa₂(Mn,Na)₈(Nb,Ti)₄(Si₂O₇)₄O₄(OH)₄(O,F)₂ | Triclinic | — | — |
| Bobtraillite | (Na,Ca)₁₃Sr₁₁(Zr,Y,Nb)₁₄(Si₃O₉)₁₀(H₂BSi₂O₉)₆·12H₂O | — | — | — |
| Bodieite | Bi₂(TeO₃)₂(SO₄) | Monoclinic | — | — |
| Boevskite | Pb₄(TeO₃)₂(SO₄)(S₂O₃) | Orthorhombic | — | — |
| Bogdanovite | — | Cubic | — | 13.72 g/cm³ |
| Boggsite | Na₃Ca₈(Si₇₇Al₁₉)O₁₉₂·70H₂O | Orthorhombic | — | — |
| Bohdanowiczite | AgBiSe₂ | — | — | 7.72 g/cm³ |
| Bohseite | Ca₄Be₃₊ₓAl₁₋ₓSi₉O₂₅₋ₓ(OH)₃₊ₓ (x=0 to 1) | Orthorhombic | — | — |
| Bohuslavite | Fe³⁺₄(PO₄)₃(SO₄)(OH)·nH₂O | Triclinic | — | — |
| Bojarite | — | Cubic | — | — |
| Bokite | (Al,Fe)₁.₃(V⁵⁺,V⁴⁺,Fe³⁺)₈O₂₀·7.5H₂O | Monoclinic | — | — |
| Boleite | KAg₉Pb₂₆Cu₂₄Cl₆₂(OH)₄₈ | Cubic | — | — |
| Bolivarite | Al₂PO₄(OH)₃·4H₂O | Amorphous | — | — |
| Boltwoodite | (K,Na)(UO₂)(SiO₃OH)·1.5H₂O | Monoclinic | — | — |
| Bonaccordite | Ni₂Fe³⁺O₂(BO₃) | Orthorhombic | 7.0 | — |
| Bonaccorsiite | KK₂Na₃(Al₆Si₃₆)O₈₄ | Hexagonal | — | — |
| Bonacinaite | Sc(AsO₄)·2H₂O | Monoclinic | — | — |
| Bonattite | — | Monoclinic | — | — |
| Bonazziite | As₄S₄ | Monoclinic | — | — |
| Bonshtedtite | Na₃Fe²⁺(CO₃)(PO₄) | Monoclinic | — | — |
| Boothite | CuSO₄·7H₂O | Monoclinic | — | — |
| Boracite | Mg₃B₇O₁₃Cl | Orthorhombic | — | — |
| Boralsilite | Al₁₆B₆Si₂O₃₇ | Monoclinic | — | — |
| Borax | Na₂B₄O₅(OH)₄·8H₂O | — | — | — |
| Borcarite | Ca₄Mg(B₄O₆(OH)₆)(CO₃)₂ | Triclinic | — | — |
| Borisenkoite | Cu₃[(V,As)O₄]₂ | Monoclinic | — | — |
| Borishanskiite | Pd₁+x(As,Pb)₂ , x = ₀-₀.₂ | Orthorhombic | — | — |
| Bornemanite | Na₆(Na☐)Ba₂Ti₂Nb₂(Si₂O₇)₄(PO₄)₂O₄(OH)₂F₂ | Triclinic | — | — |
| Bornhardtite | Co²⁺Co³⁺₂Se₄ | Cubic | 4.0 | — |
| Bornite | Cu₅FeS₄ | Orthorhombic | 3.0 | 5.10 g/cm³ |
| Borocookeite | Li₁+₃xAl₄-x(BSi₃O₁₀)(OH)₈ | — | — | — |
| Borodaevite | Ag₅(Bi,Pb,Fe)₈(Sb,Bi)₂S₁₇ | — | — | — |
| Boromullite | Al₉BSi₂O₁₉ | Orthorhombic | — | — |
| Boromuscovite | KAl₂(BSi₃O₁₀)(OH)₂ | — | — | — |
| Borovskite | Pd₃SbTe₄ | — | — | — |
| Bortnikovite | Pd₄Cu₃Zn | Tetragonal | — | — |
| Borzęckiite | Pb(UO₂)₃(SeO₃)₂O₂·3H₂O | — | — | — |
| Boscardinite | TlPb₄(Sb₇As₂)S₁₈ | Triclinic | — | — |
| Bosiite | NaFe³⁺₃(Al₄Mg₂)(Si₆O₁₈)(BO₃)₃(OH)₃O | Trigonal | 7.0 | — |
| Bosoite | SiO₂·nCₓH₂ₓ₊₂ | Hexagonal | — | — |
| Bostwickite | CaMn₆Si₃O₁₆·7H₂O | Orthorhombic | — | — |
| Botallackite | Cu₂Cl(OH)₃ | — | — | — |
| Botryogen | MgFe³⁺(SO₄)₂(OH)·7H₂O | Monoclinic | — | — |
| Bottinoite | NiSb⁵⁺₂(OH)₁₂·6H₂O | — | 3.0 | — |
| Botuobinskite | — | Trigonal | — | — |
| Bouazzerite | Bi₆(Mg,Co)₁₁Fe₁₄(AsO₄)₁₈O₁₂(OH)₄·86H₂O | Monoclinic | — | — |
| Boulangerite | Pb₅Sb₄S₁₁ | Monoclinic | 2.8 | — |
| Bournonite | CuPbSbS₃ | Orthorhombic | 3.0 | — |
| Boussingaultite | (NH₄)₂Mg(SO₄)₂·6H₂O | — | — | — |
| Bowieite | — | Orthorhombic | — | — |
| Bowlesite | — | Orthorhombic | — | — |
| Braccoite | NaMn²⁺₅[Si₅O₁₄(OH)](AsO₃)(OH) | Triclinic | — | — |
| Bracewellite | CrO(OH) | — | — | 4.05 g/cm³ |
| Brackebuschite | Pb₂Mn³⁺(VO₄)₂(OH) | Monoclinic | — | — |
| Bradaczekite | NaCu₄(AsO₄)₃ | Monoclinic | 3.0 | 4.55 g/cm³ |
| Bradleyite | Na₃Mg(CO₃)(PO₄) | Monoclinic | — | 2.79 g/cm³ |
| Braggite | PtS | Tetragonal | 6.0 | 10.10 g/cm³ |
| Braithwaiteite | NaCu²⁺₅(Sb⁵⁺Ti⁴⁺)O₂(AsO₄)₄[AsO₃(OH)]₂·8H₂O | Triclinic | — | — |
| Braitschite-(Ce) | (Ca,Na₂)₇(Ce,La)₂B₂₂O₄₃·7H₂O | Hexagonal | — | — |
| Branchite | C₂₀H₃₄ | Triclinic | 1.0 | — |
| Brandholzite | MgSb₂(OH)₁₂·6H₂O | Trigonal | — | — |
| Brandtite | Ca₂Mn²⁺(AsO₄)₂·2H₂O | — | 3.5 | — |
| Brandãoite | BeAl₂(PO₄)₂(OH)₂(H₂O)₅ | Triclinic | — | — |
| Brannerite | UTi₂O₆ | Monoclinic | — | — |
| Brannockite | (K,Na)☐₂Li₃(Sn,Zr,Ti)₂[Si₁₂O₃₀] | — | — | — |
| Brassite | Mg(AsO₃OH)·4H₂O | Orthorhombic | — | — |
| Braunerite | K₂Ca(UO₂)(CO₃)₃·6H₂O | Monoclinic | — | — |
| Braunite | Mn²⁺Mn³⁺₆(Si₈O₄) | Tetragonal | — | — |
| Braunite II | Ca(Mn³⁺)₁₄SiO₂₄ | — | — | — |
| Brazilianite | NaAl₃(PO₄)₂(OH)₄ | Monoclinic | 5.5 | — |
| Bredigite | Ca₇Mg(SiO₄)₄ | Orthorhombic | — | — |
| Breithauptite | NiSb | Hexagonal | 5.5 | 8.76 g/cm³ |
| Brendelite | — | — | — | 6.83 g/cm³ |
| Brenkite | Ca₂(CO₃)F₂ | Orthorhombic | — | — |
| Brewsterite-Ba | Ba(Al₂Si₆)O₁₆·5H₂O | Monoclinic | — | — |
| Brewsterite-Sr | Sr(Al₂Si₆)O₁₆·5H₂O | Monoclinic | — | — |
| Breyite | Ca₃Si₃O₉ | Triclinic | — | — |
| Brezinaite | Cr₃S₄ | Monoclinic | — | — |
| Brianite | Na₂CaMg(PO₄)₂ | Monoclinic | — | 3.05 g/cm³ |
| Brianroulstonite | Ca₃[B₅O₆(OH)₆](OH)Cl₂·8H₂O | Monoclinic | — | — |
| Brianyoungite | Zn₃(CO₃,SO₄)(OH)₄ | Monoclinic | — | — |
| Briartite | Cu₂FeGeS₄ | Tetragonal | 4.5 | — |
| Bridgesite-(Ce) | — | Monoclinic | — | — |
| Bridgmanite | MgSiO₃ | Orthorhombic | — | — |
| Brindleyite | (Ni,Al)₃(Si,Al)₂O₅(OH)₄ | Monoclinic | — | — |
| Brinrobertsite | Na₀.₃Al₄(Si₄O₁₀)₂(OH)₄·3.5H₂O | — | — | — |
| Britholite-(Ce) | (Ce,Ca)₅(SiO₄)₃OH | — | — | — |
| Britholite-(Y) | (Y,Ca)₅(SiO₄)₃OH | — | 5.0 | — |
| Britvinite | Pb₁₄Mg₉(Si₁₀O₂₈)(BO₃)₄(CO₃)₂(OH)₁₂F₂ | Triclinic | — | — |
| Brochantite | Cu₄SO₄(OH)₆ | Monoclinic | — | — |
| Brockite | (Ca,Th,Ce)PO₄·H₂O | Hexagonal | — | — |
| Brodtkorbite | Cu₂HgSe₂ | Monoclinic | — | 7.77 g/cm³ |
| Bromargyrite | AgBr | Cubic | — | 6.44 g/cm³ |
| Bromellite | BeO | Hexagonal | 9.0 | 3.02 g/cm³ |
| Brontesite | (NH₄)₃PbCl₅ | Orthorhombic | — | — |
| Brookite | TiO₂ | Orthorhombic | — | 3.86 g/cm³ |
| Browneite | MnS | Cubic | — | 4.19 g/cm³ |
| Brownleeite | MnSi | Cubic | — | — |
| Brownmillerite | Ca₂(Al,Fe³⁺)₂O₅ | Orthorhombic | — | — |
| Brucite | Mg(OH)₂ | Trigonal | 2.5 | 2.46 g/cm³ |
| Brugnatellite | Mg₆Fe³⁺(CO₃)(OH)₁₃·4H₂O | Hexagonal | — | — |
| Brumadoite | Cu₃(Te⁶⁺O₄)(OH)₄·5H₂O | Monoclinic | — | — |
| Brunogeierite | Fe²⁺₂Ge⁴⁺O₄ | Cubic | — | — |
| Brunovskyite | NaZrSi₂O₆(OH) | Triclinic | — | — |
| Brushite | Ca(PO₃OH)·2H₂O | Monoclinic | 2.5 | — |
| Brusnitsynite | Mn₃CuPbAs₃Sb₂S₁₂ | Monoclinic | — | — |
| Brüggenite | Ca(IO₃)₂·H₂O | Monoclinic | 3.5 | — |
| Bubnovaite | K₂Na₈Ca(SO₄)₆ | Trigonal | — | — |
| Buchwaldite | NaCa(PO₄) | Orthorhombic | — | 3.02 g/cm³ |
| Buckhornite | (Pb₂BiS₃)(AuTe₂) | Orthorhombic | — | — |
| Buddingtonite | (NH₄)AlSi₃O₈ | Monoclinic | 5.5 | — |
| Bukovite | Cu₄Tl₂Se₄ | Tetragonal | — | — |
| Bukovskýite | — | Triclinic | — | — |
| Bulachite | [Al₆(AsO₄)₃(OH)₉(H₂O)₄]·2H₂O | — | — | — |
| Bulgakite | Li₂(Ca,Na)Fe²⁺₇Ti₂(Si₄O₁₂)₂O₂(OH)₄(F,O)(H₂O)₂ | Triclinic | — | — |
| Bultfonteinite | Ca₂[SiO₃(OH)]F·H₂O | Triclinic | 4.5 | — |
| Bunnoite | Mn²⁺₆AlSi₆O₁₈(OH)₃ | Triclinic | — | — |
| Bunsenite | NiO | Cubic | 5.5 | 6.76 g/cm³ |
| Burangaite | NaFe²⁺Al₅(PO₄)₄(OH)₆·2H₂O | Monoclinic | — | — |
| Burbankite | (Na,Ca)₃(Sr,Ba,Ce)₃(CO₃)₅ | Hexagonal | — | — |
| Burckhardtite | Pb₂(Fe³⁺Te⁶⁺)(AlSi₃O₈)O₆ | — | — | — |
| Burgessite | Co₂(H₂O)₄[AsO₃(OH)]₂(H₂O) | Monoclinic | — | — |
| Burkeite | Na₄(SO₄)(CO₃) | Orthorhombic | — | — |
| Burnettite | CaVAlSiO₆ | Monoclinic | — | — |
| Burnsite | — | — | — | — |
| Burovaite-Ca | (Na,K)₄Ca₂(Ti,Nb)₈[Si₄O₁₂]₄(OH,O)₈·12H₂O | Monoclinic | — | — |
| Burpalite | Na₂CaZr(Si₂O₇)F₂ | Monoclinic | — | — |
| Burroite | Ca₂(NH₄)₂(V₁₀O₂₈)·15H₂O | Triclinic | — | — |
| Burtite | Ca[Sn(OH)₆] | Cubic | — | — |
| Buryatite | Ca₃(Si,Fe,Al)(SO₄)[B(OH)₄]O(OH)₅·12H₂O | Trigonal | — | — |
| Buseckite | (Fe,Zn,Mn)S | Hexagonal | — | — |
| Buserite | Na₄Mn₁₄O₂₇·21H₂O (?) | — | — | — |
| Bushmakinite | Pb₂Al(PO₄)(VO₄)(OH) | — | — | — |
| Bussenite | Ba₄(Na,☐)₂(Fe²⁺,Na)₂Ti₂(Si₂O₇)₂(CO₃)₂O₂(OH)₂(H₂O)₂F₂ | Triclinic | — | — |
| Bussyite-(Ce) | (Ce,REE)₃(Na,H₂O)₆MnSi₉Be₅(O,OH)₃₀F₄ | Monoclinic | — | — |
| Bussyite-(Y) | (Y,REE)₃(Na,H₂O)₆MnSi₉Be₅(O,OH)₃₀F₄ | Monoclinic | — | — |
| Bustamite | CaMn²⁺(Si₂O₆) | Triclinic | — | — |
| Butianite | Ni₆SnS₂ | Tetragonal | — | — |
| Butlerite | Fe³⁺(SO₄)(OH)·2H₂O | — | — | — |
| Buttgenbachite | Cu₁₉(NO₃)₂(OH)₃₂Cl₄·nH₂O | Hexagonal | — | — |
| Buynite | TlPb₁₄As₁₇S₄₀ | Monoclinic | — | — |
| Byelorussite-(Ce) | NaBa₂Ce₂MnTi₂[Si₄O₁₂]₂O₂(F,OH)·H₂O | Orthorhombic | — | — |
| Bykovaite | (Ba,Na,K)₂(Na,Ti,Mn)₄(Ti,Nb)₂(Si₂O₇)₂O₂(H₂O,F,OH)₂·3.5H₂O | Monoclinic | — | — |
| Byrudite | (Be,□)(V³⁺,Ti)₃O₆ | Orthorhombic | — | — |
| Bystrite | (Na,K)₇Ca(Al₆Si₆O₂₄)(S₅)Cl | Trigonal | — | — |
| Byströmite | MgSb⁵⁺₂O₆ | Tetragonal | 7.0 | — |
| Bytízite | — | Orthorhombic | — | — |
| Byzantievite | Ba₅(Ca,REE,Y)₂₂(Ti,Nb)₁₈(SiO₄)₄[(PO₄),(SiO₄)]₄(BO₃)₉O₂₂[(OH),F]₄₃·₁.₅H₂O | Trigonal | — | — |
| Béhierite | — | Tetragonal | — | — |
| Bílinite | — | Monoclinic | 2.0 | — |
| Böhmite | AlO(OH) | Orthorhombic | 3.5 | 3.41 g/cm³ |
| Bøggildite | Na₂Sr₂Al₂(PO₄)F₉ | Monoclinic | — | 3.52 g/cm³ |
| Bøgvadite | — | Monoclinic | — | — |
| Bütschliite | — | Trigonal | — | — |
| Běhounekite | U(SO₄)₂(H₂O)₄ | Orthorhombic | — | — |