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Grandfathered minerals
1,125 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Bassetite | Fe²⁺(UO₂)₂(PO₄)₂ * 10H₂O | Monoclinic | 2.5 | — |
| Baumhauerite | Pb₁₂As₁₆S₃₆ | — | — | — |
| Bayerite | Al(OH)₃ | Monoclinic | — | — |
| Bayldonite | Cu₃PbO(AsO₃OH)₂(OH)₂ | Monoclinic | 4.5 | — |
| Bayleyite | Mg₂(UO₂)(CO₃)₃ * 18H₂O | Monoclinic | — | — |
| Bazzite | Be₃Sc₂(Si₆O₁₈) | Hexagonal | — | — |
| Becquerelite | Ca(UO₂)₆O₄(OH)₆·8(H₂O) | Orthorhombic | 2.5 | — |
| Beidellite | (Na,Ca₀.₅)₀.₃Al₂((Si,Al)₄O₁₀)(OH)₂ * nH₂O | — | — | — |
| Bellingerite | Cu₃(IO₃)₆·2H₂O | Triclinic | 4.0 | — |
| Belovite-(Ce) | NaCeSr₃(PO₄)₃F | Trigonal | 5.0 | — |
| Benitoite | — | Hexagonal | 6.0 | 3.65 g/cm³ |
| Bergenite | Ca₂Ba₄(UO₂)₉O₆(PO₄)₆·16H₂O | Monoclinic | — | — |
| Berlinite | AlPO₄ | Trigonal | 6.5 | 2.65 g/cm³ |
| Bermanite | Mn²⁺Mn³⁺₂(PO₄)₂(OH)₂ * 4H₂O | — | — | — |
| Berthierine | (Fe²⁺,Fe³⁺,Al)₃(Si,Al)₂O₅(OH)₄ | — | 2.5 | — |
| Berthierite | FeSb₂S₄ | Orthorhombic | — | — |
| Bertrandite | Be₄Si₂O₇(OH)₂ | Orthorhombic | — | 2.54 g/cm³ |
| Beryl | Be₃Al₂Si₆O₁₈ | Hexagonal | — | — |
| Beryllite | Be₃(SiO₄)(OH)₂ * H₂O | Orthorhombic | — | — |
| Beryllonite | NaBePO₄ | Monoclinic | — | 2.71 g/cm³ |
| Berzelianite | Cu₂₋ₓSe (x~0.12) | Cubic | — | — |
| Berzeliite | (NaCa₂)Mg₂(AsO₄)₃ | Cubic | — | — |
| Betekhtinite | (Cu,Fe)₂₁Pb₂S₁₅ | Orthorhombic | — | — |
| Beyerite | CaBi₂O₂(CO₃)₂ | Orthorhombic | — | — |
| Bianchite | Zn(SO₄)(H₂O)₆ | Monoclinic | — | — |
| Bieberite | CoSO₄·7H₂O | Monoclinic | 2.0 | — |
| Billietite | — | Orthorhombic | — | — |
| Biphosphammite | (NH₄)H₂(PO₄) | Tetragonal | — | — |
| Birnessite | (Na,Ca,K)₀.₆(Mn⁴⁺,Mn³⁺)₂O₄·(H₂O)₁.₅ | — | 1.5 | 1.50 g/cm³ |
| 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 |
| Bismutoferrite | Fe³⁺₂Bi(SiO₄)₂(OH) | — | — | — |
| Bismutotantalite | BiTaO₄ | — | — | 9.07 g/cm³ |
| Bobierrite | Mg₃(PO₄)₂·8H₂O | — | — | — |
| Boltwoodite | (K,Na)(UO₂)(SiO₃OH)·1.5H₂O | Monoclinic | — | — |
| Bonattite | — | Monoclinic | — | — |
| Boothite | CuSO₄·7H₂O | Monoclinic | — | — |
| Boracite | Mg₃B₇O₁₃Cl | Orthorhombic | — | — |
| Borax | Na₂B₄O₅(OH)₄·8H₂O | — | — | — |
| Bornhardtite | Co²⁺Co³⁺₂Se₄ | Cubic | 4.0 | — |
| Botallackite | Cu₂Cl(OH)₃ | — | — | — |
| Botryogen | MgFe³⁺(SO₄)₂(OH)·7H₂O | Monoclinic | — | — |
| Boulangerite | Pb₅Sb₄S₁₁ | Monoclinic | 2.8 | — |
| Bournonite | CuPbSbS₃ | Orthorhombic | 3.0 | — |
| Boussingaultite | (NH₄)₂Mg(SO₄)₂·6H₂O | — | — | — |
| Brackebuschite | Pb₂Mn³⁺(VO₄)₂(OH) | Monoclinic | — | — |
| Bradleyite | Na₃Mg(CO₃)(PO₄) | Monoclinic | — | 2.79 g/cm³ |
| Brandtite | Ca₂Mn²⁺(AsO₄)₂·2H₂O | — | 3.5 | — |
| Braunite | Mn²⁺Mn³⁺₆(Si₈O₄) | Tetragonal | — | — |
| Brazilianite | NaAl₃(PO₄)₂(OH)₄ | Monoclinic | 5.5 | — |
| Bredigite | Ca₇Mg(SiO₄)₄ | Orthorhombic | — | — |
| Breithauptite | NiSb | Hexagonal | 5.5 | 8.76 g/cm³ |
| Bromellite | BeO | Hexagonal | 9.0 | 3.02 g/cm³ |
| Brookite | TiO₂ | Orthorhombic | — | 3.86 g/cm³ |
| Brucite | Mg(OH)₂ | Trigonal | 2.5 | 2.46 g/cm³ |
| Brushite | Ca(PO₃OH)·2H₂O | Monoclinic | 2.5 | — |
| Bultfonteinite | Ca₂[SiO₃(OH)]F·H₂O | Triclinic | 4.5 | — |
| Bunsenite | NiO | Cubic | 5.5 | 6.76 g/cm³ |
| Burbankite | (Na,Ca)₃(Sr,Ba,Ce)₃(CO₃)₅ | Hexagonal | — | — |
| Burkeite | Na₄(SO₄)(CO₃) | Orthorhombic | — | — |
| Bustamite | CaMn²⁺(Si₂O₆) | Triclinic | — | — |
| Butlerite | Fe³⁺(SO₄)(OH)·2H₂O | — | — | — |
| Buttgenbachite | Cu₁₉(NO₃)₂(OH)₃₂Cl₄·nH₂O | Hexagonal | — | — |
| Byströmite | MgSb⁵⁺₂O₆ | Tetragonal | 7.0 | — |
| Bílinite | — | Monoclinic | 2.0 | — |
| Böhmite | AlO(OH) | Orthorhombic | 3.5 | 3.41 g/cm³ |
| Bøggildite | Na₂Sr₂Al₂(PO₄)F₉ | Monoclinic | — | 3.52 g/cm³ |
| Bütschliite | — | Trigonal | — | — |
| Cacoxenite | Fe³⁺₂₄AlO₆(PO₄)₁₇(OH)₁₂·75H₂O | Hexagonal | — | — |
| Cadmoselite | CdSe | Hexagonal | 4.0 | 5.48 g/cm³ |
| Cahnite | Ca₂[B(OH)₄](AsO₄) | Tetragonal | 3.0 | — |
| Calaverite | AuTe₂ | Monoclinic | — | 8.86 g/cm³ |
| Calciborite | CaB₂O₄ | Orthorhombic | — | 2.87 g/cm³ |
| Calcioferrite | Ca₂Fe³⁺₂(PO₄)₃(OH) * 7H₂O | Monoclinic | — | — |
| Calcioursilite | Ca₄(UO₂)₄(Si₂O₅)₅(OH)₆·15H₂O | — | — | — |
| Calcite | CaCO₃ | Trigonal | 3.0 | 2.72 g/cm³ |