Boron — B
The chemical element Boron is an element of type Metalloids with the symbol B. It has an atomic mass of 10.812 u and an electronic configuration of [He] 2s2 2p1.
Synthétique
Radioactif
Liquide
Gaz
Electronic configuration diagram
characteristics
- Atomic number
- 5
- Atomic mass
- 10.812
- Symbol
- B
- Melting point
- 2300
- Boiling point
- 2550
- Density
- 2.34
- Period
- 2
- Group
- 13
- Discovery
- 1808 Gay-Lussac
- Abundance
- 10
- Radius
- 1.2
- Electronegativity
- 2.04
- Ionization
- 8.298
- Isotope
- 6
- Electronic configuration
- [He] 2s2 2p1
- Oxidation state
- 1,2,3
- Electron
- 2,3
Boron is a chemical element with symbol B and atomic number 5. It is classified as a transition metal and is found in the second period of the periodic table of elements. boron is metallic white and slightly shiny. It is almost tasteless and odorless. boron is very hard and very difficult to work and mold, so it is often combined with other metals to facilitate its processing.
boron is one of four elements that can form very strong covalent bonds with another boron atom. This property makes it an excellent addition to materials such as alloys and metals. boron is also used as an alloying element to improve corrosion and abrasion resistance.
boron is also used in many industries. It is used to make batteries, tools, insulation materials, abrasive products, motors, gears and mechanical parts. boron is also used in the production of high quality lubricants and greases, as well as in the manufacture of chemicals, dyes and drugs.
Finally, boron is also used as a fertilizer because it is highly concentrated in trace elements and nutrient salts. It is also used for soil enrichment and as an addition to fertilizer to improve agricultural productivity.
Minerals containing Boron
| first name | Hardness | Density | Chemical formula |
|---|---|---|---|
| Adachiite | — | 0.00 | CaFe2+3Al6(Si5AlO18)(BO3)3(OH)3(OH) |
| Admontite | — | 1.82 | MgB6O10·7H2O |
| Aksaite | — | 1.99 | MgB6O7(OH)6·2H2O |
| Alfredstelznerite | — | 0.00 | Ca4B16O16(OH)24·19H2O |
| Aluminomagnesiohulsite | — | 3.84 | Mg2AlO2(BO3) |
| Ameghinite | — | 2.02 | NaB3O3(OH)4 |
| Ammonioborite | — | 1.77 | (NH4)3B15O20(OH)8·4H2O |
| Aristarainite | — | 2.03 | Na2Mg[B6O8(OH)4]2·4H2O |
| Avogadrite | — | 2.62 | KBF4 |
| Axinite-(Fe) | — | 3.27 | Ca4Fe2+2Al4[B2Si8O30](OH)2 |
| Axinite-(Mg) | — | 3.27 | Ca4Mg2Al4[B2Si8O30](OH)2 |
| Axinite-(Mn) | — | 3.27 | Ca4Mn2+2Al4[B2Si8O30](OH)2 |
| Azoproite | — | 3.63 | Mg2[(Ti,Mg),Fe3+]O2BO3 |
| Bakerite | — | 2.70 | Ca4B5(SiO4)3(O3(OH)5) |
| Bandylite | — | 2.81 | CuB(OH)4Cl |
| Barberiite | — | 1.89 | NH4BF4 |
| Béhierite | — | 7.81 | TaBO4 |
| Berborite | — | 2.20 | Be2BO3(OH)·H2O |
| Biringuccite | — | 2.32 | Na2B5O8(OH)·H2O |
| Blatterite | — | 4.70 | Sb5+3Mn3+9Mn2+35(BO3)16O32 |
| Bobtraillite | — | 3.16 | (Na,Ca)13Sr11(Zr,Y,Nb)14Si42B6O132(OH)12·12H2O |
| Bonaccordite | — | 5.17 | Ni2Fe3+O2(BO3) |
| Boracite | — | 2.90 | Mg3B7O13Cl |
| Boralsilite | — | 3.06 | Al16B6O30(Si2O7) |
| Borax | — | 1.70 | Na2B4O5(OH)4·8H2O |
| Borcarite | — | 2.77 | Ca4MgB4O6(CO3)2(OH)6 |
| Borocookeite | — | 2.62 | LiAl4(Si3B)O10(OH)8 |
| Boromullite | — | 0.00 | Al9BSi2O19 |
| Boromuscovite | — | 2.81 | KAl2(Si3B)O10(OH)2 |
| Bosiite | — | 3.26 | NaFe3+3(Al4Mg2)(Si6O18)(BO3)3(OH)3O |
| Braitschite-(Ce) | — | 2.90 | Ca6.15Na0.85Ce2[B6O7(OH)3(O,OH)3]4·H2O |
| Brianroulstonite | — | 1.97 | Ca3B5O6(OH)7Cl2·8H2O |
| Britvinite | — | 5.51 | Pb14Mg9Si10O28(BO3)4(CO3)2F2(OH)12 |
| Buryatite | — | 0.00 | Ca3(Si,Fe3+,Al)SO4B(OH)4(OH,O)6·12H2O |
| Byzantievite | — | 4.25 | Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4(PO4,SiO4)4(BO3)9O22[(OH),F]43·1.5H2O |
| Cahnite | — | 3.16 | Ca2B(AsO4)(OH)4 |
| Calciborite | — | 2.88 | CaB2O4 |
| Calcybeborosilite-(Y) | — | 3.00 | (Y,REE,Ca)2(B,Be)2(SiO4)2(OH,O)2 |
| Canavesite | — | 1.80 | Mg2(HBO3)(CO3)·5H2O |
| Cappelenite-(Y) | — | 4.40 | BaY6B6Si3O24F2 |
| Capranicaite | — | 2.41 | KCaNaAl4B4Si2O18 |
| Carboborite | — | 2.12 | Ca2Mg[B(OH)4]2(CO3)2·4H2O |
| Chambersite | — | 3.49 | Mn3B7O13Cl |
| Charlesite | — | 1.77 | Ca6Al2(SO4)2B(OH)4(OH,O)12·26H2O |
| Chelkarite | — | 1.00 | CaMgB2O4Cl2·7H2O |
| Chestermanite | — | 3.72 | Mg2(Fe3+,Mg,Al,Sb5+)O2BO3 |
| Chromium-dravite | — | 0.00 | NaMg3Cr6(Si6O18)(BO3)3(OH)3OH |
| Chromo-alumino-povondraite | — | 3.23 | NaCr3(Al4Mg2)(Si6O18)(BO3)3(OH)3O |
| Chubarovite | — | 2.72 | KZn2(BO3)Cl2 |
| Ciprianiite | — | 0.00 | Ca4(Th,REE)2Al(B4Si4O22)(OH)2 |
| Clinokurchatovite | — | 3.07 | CaMgB2O5 |
| Clinometaborite | — | 2.05 | HBO2 |
| Colemanite | — | 2.42 | CaB3O4(OH)3·H2O |
| Congolite | — | 3.58 | Fe2+3B7O13Cl |
| Danburite | — | 2.97 | CaB2Si2O8 |
| Darrellhenryite | — | 3.04 | NaLiAl2Al6(BO3)3Si6O18(OH)3O |
| Datolite | — | 2.80 | CaB(SiO4)(OH) |
| Diomignite | — | 0.00 | Li2B4O7 |
| Dravite | — | 2.98 | NaMg3Al6(Si6O18)(BO3)3(OH)3OH |
| Dumortierite | — | 3.30 | Al6BSi3O18 |
| Ekaterinite | — | 2.44 | Ca2B4O7Cl2·2H2O |
| Elbaite | — | 2.90 | Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3OH |
| Ericaite | — | 3.22 | Fe2+3B7O13Cl |
| Ezcurrite | — | 2.05 | Na2B5O7(OH)3·2H2O |
| Fabianite | — | 2.77 | CaB3O5(OH) |
| Fedorovskite | — | 2.65 | Ca2Mg2B4O7(OH)6 |
| Ferruccite | — | 2.50 | NaBF4 |
| Feruvite | — | 3.21 | CaFe2+3(Al5Mg)(Si6O18)(BO3)3(OH)3OH |
| Fluoborite | — | 2.89 | Mg3(BO3)F3 |
| Fluor-buergerite | — | 0.00 | NaFe3+3Al6(Si6O18)(BO3)3O3F |
| Fluor-dravite | — | 3.12 | NaMg3Al6(Si6O18)(BO3)3(OH)3F |
| Fluor-elbaite | — | 0.00 | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F |
| Fluor-liddicoatite | — | 3.05 | Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F |
| Fluor-schorl | — | 0.00 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3F |
| Fluor-tsilaisite | — | 3.13 | NaMn2+3Al6(Si6O18)(BO3)3(OH)3F |
| Fluor-uvite | — | 3.08 | CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3F |
| Foitite | — | 3.17 | (Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3OH |
| Folvikite | — | 0.00 | Sb5+Mn3+(Mg,Mn2+)10O8(BO3)4 |
| Fontarnauite | — | 0.00 | (Na,K)2(Sr,Ca)(SO4)[B5O8(OH)]·2H2O |
| Fredrikssonite | — | 3.84 | Mg2Mn3+O2(BO3) |
| Frolovite | — | 2.14 | Ca[B(OH)4]2 |
| Gadolinite-(Ce) | — | 4.20 | Fe2+Be2Ce2(SiO4)2O2 |
| Garrelsite | — | 3.00 | NaBa3B7Si2O16(OH)4 |
| Gaudefroyite | — | 3.35 | Ca4Mn3+3(BO3)3(CO3)O3 |
| Ginorite | — | 2.07 | Ca2B14O20(OH)6·5H2O |
| Gowerite | — | 2.00 | Ca[B5O8(OH)][B(OH)3]·3H2O |
| Grandidierite | — | 2.98 | MgAl3O2(BO3)SiO4 |
| Halurgite | — | 2.19 | Mg2[B4O5(OH)4]2·H2O |
| Hambergite | — | 2.37 | Be2BO3(OH) |
| Harkerite | — | 2.96 | Ca12Mg4Al(SiO4)4(BO3)3(CO3)5·H2O |
| Heidornite | — | 2.75 | Na2Ca3B5O8(SO4)2(OH)2Cl |
| Hellandite-(Ce) | — | 0.00 | (Ca,REE)4Ce2Al(Be,Li)2-xB4Si4O22(OH)2 |
| Hellandite-(Y) | — | 3.70 | (Ca,REE)4Y2Al(Be,Li)2-xB4Si4O22(OH)2 |
| Henmilite | — | 2.51 | Ca2Cu[B(OH)4]2(OH)4 |
| Hexahydroborite | — | 1.87 | Ca[B(OH)4]2·2H2O |
| Hilgardite | — | 2.69 | Ca2B5O9Cl·H2O |
| Holtite | — | 3.60 | (Ta0.60.4)Al6BSi3O18 |
| Homilite | — | 3.38 | Ca2Fe2+B2(SiO4)2O2 |
| Howlite | — | 2.58 | Ca2B5SiO9(OH)5 |
| Hulsite | — | 4.30 | Fe2+2Fe3+O2(BO3) |
| Hundholmenite-(Y) | — | 5.21 | (Y,REE,Ca,Na)15(Al,Fe3+)Cax(As3+)1-x(Si,As5+)Si6B3(O,F)48 |
| Hungchaoite | — | 1.71 | MgB4O5(OH)4·7H2O |
| Hyalotekite | — | 3.81 | (Ba,Pb,K)4(Ca,Y)2(B,Be)2(Si,B)2Si8O28F |
| Hydroboracite | — | 2.00 | CaMg[B3O4(OH)3]2·3H2O |
| Hydrochlorborite | — | 1.85 | Ca2B3O3(OH)4·BO(OH)3Cl·7H2O |
| Hydroxylborite | — | 2.89 | Mg3(BO3)(OH)3 |
| Imayoshiite | — | 0.00 | Ca3Al(CO3)[B(OH)4](OH)6·12H2O |
| Inderborite | — | 2.00 | CaMg[B3O3(OH)5]2·6H2O |
| Inderite | — | 1.80 | MgB3O3(OH)5·5H2O |
| Inyoite | — | 1.87 | CaB3O3(OH)5·4H2O |
| Iquiqueite | — | 2.05 | K3Na4Mg(CrO4)B24O39(OH)·12H2O |
| Itsiite | — | 3.64 | Ba2Ca(BSi2O7)2 |
| Jacquesdietrichite | — | 3.28 | Cu2BO(OH)5 |
| Jadarite | — | 2.45 | LiNaB3SiO7(OH) |
| Jarandolite | — | 2.49 | CaB3O4(OH)3 |
| Jeremejevite | — | 3.28 | Al6(BO3)5F3 |
| Jimboite | — | 3.98 | Mn2+3(BO3)2 |
| Johachidolite | — | 3.37 | CaAlB3O7 |
| Kalborsite | — | 2.50 | K6Al4BSi6O20(OH)4Cl |
| Kaliborite | — | 2.12 | HKMg2B12O16(OH)10·4H2O |
| Kapitsaite-(Y) | — | 3.74 | Ba4Y2Si8B4O28F |
| Karlite | — | 2.80 | (Mg,Alx)7(BO3)3(OH)4Cl1-x |
| Kasatkinite | — | 0.00 | Ba2Ca8B5Si8O32(OH)3·6H2O |
| Kernite | — | 1.90 | Na2B4O6(OH)2·3H2O |
| Khvorovite | — | 3.97 | Pb2+4Ca2[Si8B2(SiB)O28]F |
| Kirchhoffite | — | 3.64 | CsBSi2O6 |
| Knasibfite | — | 2.75 | K3Na4[SiF6]3[BF4] |
| Kornerupine | — | 3.30 | (Mg,Fe2+,Al)10(Si,Al,B)5O21(OH,F) |
| Korzhinskite | — | 0.00 | CaB2O4·0.5H2O |
| Kotoite | — | 3.04 | Mg3(BO3)2 |
| Kurchatovite | — | 3.02 | CaMgB2O5 |
| Kurgantaite | — | 2.99 | CaSrB5O9Cl·H2O |
| Kurnakovite | — | 1.83 | MgB3O3(OH)5·5H2O |
| Laptevite-(Ce) | — | 4.66 | NaFe2+(REE7Ca5Y3)(SiO4)4(Si3B2PO18)(BO3)F11 |
| Larderellite | — | 1.91 | NH4B5O7(OH)2·H2O |
| Leucosphenite | — | 3.00 | Na4BaTi2B2Si10O30 |
| Leucostaurite | — | 5.07 | Pb2B5O9Cl·0.5H2O |
| Lisitsynite | — | 2.74 | KBSi2O6 |
| Londonite | — | 3.34 | CsBe5Al4B11O28 |
| Lucchesiite | — | 3.23 | CaFe2+3Al6(Si6O18)(BO3)3(OH)3O |
| Ludwigite | — | 3.70 | Mg2Fe3+O2(BO3) |
| Luinaite-(OH) | — | 0.00 | (Na)(Fe2+,Mg)3Al6(Si6O18)(BO3)3(OH)3OH |
| Lüneburgite | — | 2.05 | Mg3[B2(OH)6(PO4)2]·6H2O |
| Magnesio-foitite | — | 0.00 | (Mg2Al)Al6(Si6O18)(BO3)3(OH)3OH |
| Magnesiodumortierite | — | 3.22 | MgAl6BSi3O17(OH) |
| Magnesiohulsite | — | 4.18 | Mg2Fe3+O2(BO3) |
| Maleevite | — | 3.78 | BaB2Si2O8 |
| Malinkoite | — | 2.90 | NaBSiO4 |
| Manandonite | — | 2.89 | Li2Al4(Si2AlB)O10(OH)8 |
| Marinaite | — | 0.00 | Cu2Fe3+O2(BO3) |
| Martinite | — | 0.00 | (Na,Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2·4H2O |
| Maruyamaite | — | 3.08 | K(MgAl2)(Al5Mg)(BO3)3(Si6O18)(OH)3O |
| Mcallisterite | — | 1.87 | Mg2[B6O7(OH)6]2·9H2O |
| Melanocerite-(Ce) | — | 4.13 | Ce5(SiO4,BO4)3(OH,O) |
| Mengxianminite | — | 3.85 | (Ca,Na)2Sn2(Mg,Fe)3Al8[(BO3)(BeO4)O6]2 |
| Mereheadite | — | 7.12 | Pb47O24(OH)13Cl25(BO3)2(CO3) |
| Metaborite | — | 2.47 | HBO2 |
| Meyerhofferite | — | 2.12 | CaB3O3(OH)5·H2O |
| Mottanaite-(Ce) | — | 3.61 | Ca4(CeCa)AlBe2(B4Si4O22)O2 |
| Moydite-(Y) | — | 3.13 | YB(OH)4CO3 |
| Nagashimalite | — | 4.08 | Ba4(V3+,Ti)4(O,OH)2[B2Si8O27]Cl |
| Nasinite | — | 2.00 | Na2B5O8(OH)·2H2O |
| Nifontovite | — | 2.36 | Ca3[BO(OH)2]6·2H2O |
| Nioboholtite | — | 3.72 | (Nb0.60.4)Al6BSi3O18 |
| Nobleite | — | 2.09 | CaB6O9(OH)2·3H2O |
| Nolzeite | — | 2.79 | NaMn2[Si3BO9](OH)2·2H2O |
| Nordenskiöldine | — | 4.20 | CaSn4+(BO3)2 |
| Numanoite | — | 2.96 | Ca4CuB4O6(CO3)2(OH)6 |
| Odigitriaite | — | 2.83 | CsNa5Ca5[Si14B2O38]F2 |
| Okanoganite-(Y) | — | 4.35 | (Y,REE,Ca,Na,Th)16(Fe3+,Ti)(Si,B,P)10(O,OH)38F10 |
| Okayamalite | — | 3.30 | Ca2B2SiO7 |
| Olenite | — | 3.01 | NaAl3Al6(Si6O18)(BO3)3(O3)OH |
| Olshanskyite | — | 2.19 | Ca2[B3O3(OH)6]OH·3H2O |
| Ominelite | — | 3.20 | Fe2+Al3O2(BO3)SiO4 |
| Orthopinakiolite | — | 4.03 | Mg2Mn3+O2(BO3) |
| Oxy-chromium-dravite | — | 3.30 | NaCr3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O |
| Oxy-dravite | — | 0.00 | Na(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O |
| Oxy-schorl | — | 3.21 | Na(Fe2+2Al)Al6Si6O18(BO3)3(OH)3O |
| Oxy-vanadium-dravite | — | 3.32 | NaV3(V4Mg2)Si6O18(BO3)3(OH)3O |
| Oyelite | — | 2.62 | Ca10B2Si8O29·12H2O |
| Painite | — | 4.00 | CaZrAl9O15(BO3) |
| Parasibirskite | — | 2.50 | CaHBO3 |
| Pekovite | — | 3.35 | SrB2Si2O8 |
| Penobsquisite | — | 2.26 | Ca2Fe2+[B9O13(OH)6]Cl·4H2O |
| Pentahydroborite | — | 2.00 | CaB2O(OH)6·2H2O |
| Peprossiite-(Ce) | — | 3.45 | (Ce,La)(Al3O)2/3B4O10 |
| Perettiite-(Y) | — | 4.53 | Y2Mn4FeSi2B8O24 |
| Pertsevite-(F) | — | 3.12 | Mg2BO3F |
| Pertsevite-(OH) | — | 3.16 | Mg2BO3(OH) |
| Piergorite-(Ce) | — | 0.00 | Ca8Ce2AlLiSi6B8O36(OH)2 |
| Pinakiolite | — | 3.88 | (Mg,Mn2+)2(Mn3+,Sb5+)O2(BO3) |
| Pinnoite | — | 2.29 | MgB2O(OH)6 |
| Poudretteite | — | 2.51 | KNa2(B3Si12)O30 |
| Povondraite | — | 3.26 | NaFe3+3(Fe3+4Mg2)(Si6O18)(BO3)3(OH)3O |
| Preobrazhenskite | — | 2.45 | Mg3B11O15(OH)9 |
| Priceite | — | 2.42 | Ca2B5O7(OH)5·H2O |
| Pringleite | — | 2.21 | Ca9B26O34(OH)24Cl4·13H2O |
| Prismatine | — | 3.34 | (Mg,Al,Fe)6Al4(Si,Al)4(B,Si,Al)(O,OH,F)22 |
| Probertite | — | 2.14 | NaCaB5O7(OH)4·3H2O |
| Proshchenkoite-(Y) | — | 4.72 | (Y,REE,Ca,Na,Mn)15CaFe2+(P,Si)Si6B3O34F14 |
| Pseudosinhalite | — | 3.61 | Mg2Al3B2O9(OH) |
| Qilianshanite | — | 1.71 | NaH4(CO3)(BO3)·2H2O |
| Qingsongite | — | 3.46 | BN |
| Ramanite-(Cs) | — | 0.00 | CsB5O6(OH)4·2H2O |
| Ramanite-(Rb) | — | 0.00 | RbB5O6(OH)4·2H2O |
| Reedmergnerite | — | 2.78 | NaBSi3O8 |
| Rhodizite | — | 3.44 | KBe4Al4(B11Be)O28 |
| Rivadavite | — | 1.91 | Na6Mg[B6O7(OH)6]4·10H2O |
| Rogermitchellite | — | 0.00 | Na6(Sr,Na)12Ba2Zr13Si39(B,Si)6O123(OH)12·9H2O |
| Rossmanite | — | 3.00 | (LiAl2)Al6(Si6O18)(BO3)3(OH)3OH |
| Roweite | — | 2.94 | Ca2Mn2+2B4O7(OH)6 |
| Rubellite | — | 3.06 | Na(Li1.5Al1.5)Al6(BO3)3Si6O18(OH)4 |
| Ruitenbergite | — | 2.21 | Ca9B26O34(OH)24Cl4·13H2O |
| Sakhaite | — | 2.78 | Ca48Mg16Al(SiO3OH)4(CO3)16(BO3)28·(H2O)3(HCl)3 |
| Santarosaite | — | 3.96 | CuB2O4 |
| Santite | — | 1.74 | KB5O6(OH)4·2H2O |
| Sassolite | — | 3.30 | B(OH)3 |
| Satimolite | — | 2.10 | KNa2Al4(B2O5)3Cl3·13H2O |
| Sazhinite-(La) | — | 0.00 | Na3LaSi6O15·2H2O |
| Sborgite | — | 1.71 | NaB5O6(OH)4·3H2O |
| Schiavinatoite | — | 6.55 | NbBO4 |
| Schorl | — | 3.10 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH |
| Seamanite | — | 3.13 | Mn2+3B(OH)4(PO4)(OH)2 |
| Searlesite | — | 2.45 | NaBSi2O5(OH)2 |
| Serendibite | — | 3.40 | Ca4(Mg6Al6)O4[Si6B3Al3O36] |
| Shabynite | — | 2.32 | Mg5BO3(OH)5Cl2·4H2O |
| Shimazakiite | — | 0.00 | Ca2B2O5 |
| Sibirskite | — | 0.00 | CaHBO3 |
| Sinhalite | — | 3.47 | MgAlBO4 |
| Solongoite | — | 2.51 | Ca2B3O4(OH)4Cl |
| Steedeite | — | 3.11 | NaMn2[Si3BO9](OH)2 |
| Stillwellite-(Ce) | — | 4.57 | CeBSiO5 |
| Strontioborite | — | 2.81 | SrB8O11(OH)4 |
| Strontioginorite | — | 2.25 | SrCaB14O20(OH)6·5H2O |
| Studenitsite | — | 2.29 | NaCa2B9O14(OH)4·2H2O |
| Sturmanite | — | 1.85 | Ca6Fe3+2(SO4)2.5[B(OH)4](OH)12·25H2O |
| Suanite | — | 2.91 | Mg2B2O5 |
| Sulfoborite | — | 2.44 | Mg3[B(OH)4]2(SO4)(OH,F)2 |
| Sussexite | — | 3.12 | Mn2+BO2(OH) |
| Szaibélyite | — | 2.65 | MgBO2(OH) |
| Szklaryite | — | 3.71 | Al6BAs3+3O15 |
| Tadzhikite-(Ce) | — | 3.73 | Ca4Ce3+2Ti(B4Si4O22)(OH)2 |
| Tadzhikite-(Y) | — | 3.73 | — |
| Takedaite | — | 3.10 | Ca3B2O6 |
| Takéuchiite | — | 3.93 | Mg2Mn3+O2BO3 |
| Taramellite | — | 3.90 | Ba4(Fe3+,Ti)4O2[B2Si8O27]Clx; x = 0 to 1 |
| Tatarinovite | — | 0.00 | Ca3Al(SO4)[B(OH)4](OH)6·12H2O |
| Teepleite | — | 2.08 | Na2B(OH)4Cl |
| Tertschite | — | 0.00 | Ca4B10O19·20H2O |
| Teruggite | — | 2.15 | Ca4Mg[AsB6O11(OH)6]2·14H2O |
| Tienshanite | — | 3.29 | K(Na,K)9Ca2Ba6Mn2+6Ti6B12Si36O114(O,OH,F)11 |
| Tincalconite | — | 1.88 | Na2B4O5(OH)4·3H2O |
| Tinzenite | — | 3.29 | Ca2Mn2+4Al4[B2Si8O30](OH)2 |
| Titanoholtite | — | 3.66 | (Ti0.750.25)Al6BSi3O18 |
| Titantaramellite | — | 4.00 | Ba4(Ti,Fe3+,Mg)4(O,OH)2[B2Si8O27]Clx |
| Tourmaline | — | 3.20 | NaFe2+3 Al6 ((OH)4 (BO3)3 Si6O18) |
| Trembathite | — | 2.84 | Mg3B7O13Cl |
| Tritomite-(Ce) | — | 4.20 | Ce5(SiO4,BO4)3(OH,O) |
| Tritomite-(Y) | — | 3.05 | Y5(SiO4,BO4)3(O,OH,F) |
| Tsilaisite | — | 3.13 | NaMn2+3Al6(Si6O18)(BO3)3(OH)3OH |
| Tunellite | — | 2.40 | SrB6O9(OH)2·3H2O |
| Tusionite | — | 4.73 | Mn2+Sn4+(BO3)2 |
| Tuzlaite | — | 2.21 | NaCaB5O8(OH)2·3H2O |
| Tyretskite | — | 2.19 | Ca2B5O9(OH)·H2O |
| Ulexite | — | 1.95 | NaCaB5O6(OH)6·5H2O |
| Uralborite | — | 2.60 | CaB2O2(OH)4 |
| Uvite | — | 3.10 | CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3OH |
| Vanadio-oxy-chromium-dravite | — | 3.30 | NaV3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O |
| Vanadio-oxy-dravite | — | 0.00 | NaV3(Al4Mg2)(Si6O18)(BO3)3(OH)3O |
| Veatchite | — | 2.62 | Sr2[B5O8(OH)]2B(OH)3·H2O |
| Veatchite-p | — | 2.60 | Sr2[B5O8(OH)]2B(OH)3·H2O |
| Vicanite-(Ce) | — | 4.73 | (Ca,Ce,La,Th)15As5+(As3+,Na)0.5Fe3+0.7Si6B4(O,F)47 |
| Vimsite | — | 2.54 | CaB2O2(OH)4 |
| Vistepite | — | 3.67 | Mn4SnB2O2(Si2O7)2(OH)2 |
| Vitimite | — | 2.29 | Ca6B14O19(SO4)(OH)14·5H2O |
| Vladkrivovichevite | — | 7.40 | [Pb32O18][Pb4Mn2O]Cl14(BO3)8·2H2O |
| Volkovskite | — | 2.27 | KCa4[B5O8(OH)]4[B(OH)3]2Cl·4H2O |
| Vonsenite | — | 4.21 | Fe2+2Fe3+O2(BO3) |
| Vránaite | — | 0.00 | Al16B4Si4O38 |
| Walkerite | — | 2.07 | Ca16(Mg,Li)2[B13O17(OH)12]4Cl6·28H2O |
| Wardsmithite | — | 1.88 | Ca5Mg(B4O7)6·30H2O |
| Warwickite | — | 3.36 | (Mg,Ti,Fe,Cr,Al)2O(BO3) |
| Wawayandaite | — | 3.00 | Ca6Be9Mn2+2BSi6O23(OH,Cl)15 |
| Werdingite | — | 3.04 | Mg2Al14Si4B4O37 |
| Wightmanite | — | 2.60 | Mg5O(BO3)(OH)5·2H2O |
| Wiluite | — | 3.36 | Ca19(Al,Mg)13(B,Al)5(SiO4)10(Si2O7)4(O,OH)10 |
| Wiserite | — | 3.42 | Mn2+14(B2O5)4(OH)8·(Si,Mg)(O,OH)4Cl |
| Yuanfuliite | — | 4.02 | Mg(Fe3+,Al)O(BO3) |