Elements | Sulphides | Halides | Oxides | Carbonates | Borates | Sulfates |   Phosphates | Silicates | Organic Compounds | Rocks & Meteorites    A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T |  U | V | W | X | Y | Z |   日月星水晶屋 Sun Moon Star Crystal House  V 日月星水晶屋 Sun Moon Star Crystal House   Name Formula/Composition Crystal System Hardness SG Type   Valentinite 銻華 Sb2O3 Orthorhombic 2.5-3 5.7-5.8 Oxides Vanadinite 釩鉛礦 Pb5(VO4)3Cl Hexagonal 2.5-3 6.9 Phosphates   Vanadiumdravite 釩鎂電氣石 NaMg3V6Si6O18(BO3)3(OH)4 Trigonal 7.5 3.32 Silicates   Variscite 磷鋁石 Al(PO4).2H2O Orthorhombic 3.5-4.5 2.6 Phosphates   Vauxite 藍磷鋁鐵礦 FeAl2(PO4)2(OH)2.6H2O Triclinic 3.5 2.4 Phosphates   Vermiculite 蛭石 (Fe,Mg,Al)3(Si,Al)4O10(OH)2.4H2O Monoclinic 1.5 2.5 Silicates   Vésignéite BaCu3(VO4)2(OH)2 Monoclinic 3-4 4.1 Phosphates Vesuvianite 符山石 Ca19(Al,Mg,Fe)13Si18O68(OH,F,O)10 Tetragonal 6-7 3.3 Silicates   Veszelyite 磷砷鋅銅礦 (Cu,Zn)3(PO4)(OH)4.2H2O Monoclinic 3.5-4 3.4 Phosphates   Villiaumite 氟鈉鹽 NaF Cubic 2-2.5 2.8 Halides   Viluite 硼符山石 Ca19(Al,Mg)13B5Si18O68(O,OH)10 Tetragonal 6 3.4 Silicates   Viridine 錳紅柱石 Al2SiO5 Orthorhombic 6.5-7.5 3.2 Silicates   Vivianite 藍鐵礦 Fe3(PO4)2.8H2O Monoclinic 1.5-2 2.7 Phosphates   Reference: The Complete Encyclopedia of Minerals | Gemstones of the World | 岩石與礦物圖鑑

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